If you are trying to measure an
electric current and need to describe the quantity
and units, how will you describe the units?

Answers

Answer 1

Answer:

Usually you have V, for voltage, Ohms for resistance, and Coulombs for charge.

Explanation:

See the image attached :)

 If You Are Trying To Measure Anelectric Current And Need To Describe The Quantityand Units, How Will
Answer 2
You would use v for Volta

Related Questions

Which reaction is typical neutralization reaction? H+ (aq) + OH- (aq) = H2O (g) NaCl (aq) +AgNO3(aq) = AgCl (s) + NaNO3(aq) CuO(s) +H2SO4(aq) = CuSO(4) + H2O(l) NH3(l) +H2SO4(aq) = (NH4)2SO(s)

Answers

Answer:the third

Explanation: because neutralization reaction result salt and water

The subscripts in a chemical formula are the number of
of a particular atom in one mole of the molecule.
A. reactants
B. atoms
C. moles
D. molecules

Answers

Answer:

d.molecules.its the answer.

Answer: B. molecules

Explanation:

it is the answer

Over a long period of time, a group of people were exposed to high degrees of UV radiation from the sun. While no one became sick immediately, doctors did predict that those exposed had an increased risk of cancer in skin cells. Which type of mutation will this exposure cause? A. acquired, harmful B. acquired, neutral C. inherited, beneficial D. inherited, neutral

Answers

Answer:

acquired/harmful

Explanation:

This type of mutation and exposure will cause indefinite problems.

A. because they did not inherit cancer from their family they accuired it from the sun and cancer is harmfull so its A.

The study of such concepts as motion, force, energy, matter, heat, sound, light, and the components of atoms is:​

Answers

Answer:

chemistry

Explanation:

It is Physics because in chemistry we study about kinds of chemicals but in physics we learn about motion , sound, light , etc

What launched the era of modern science in the 17th century?​

Answers

Answer:

Galileo Galilei

What launched the era of modern science in the 17th century? Modern science began in the 17th century, when the Italian physicist Galileo Galilei revived the Copernican view.

hope this helps

Explanation:

Answer:

Explanation:

What launched the era of modern science in the 17th century? Modern science began in the 17th century, when the Italian physicist Galileo Galilei revived the Copernican view.

Glucose has formula C6 H12 O6.
Calculate the number of Oxygen atoms present in 18 g of glucose​

Answers

Explanation:

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Approx.
1
10

m
o
l
×
24

atoms

m
o
l

1
×
N
A
,
where
N
A
=
6.022
×
10
23

m
o
l

1
.
Explanation:
We take the quotient.....
Number of moles
=
Mass of substance

g
Molar mass

g

m
o
l

1
=
Mass of substance

g
Molar mass

g

m
o
l

1
=
1
1
m
o
l
=
m
o
l
And thus we get an answer with dimensions of
m
o
l
as we require...
And so we retake the quotient.......
Number of moles of glucose
=
18

g
180.16

g

m
o
l

1
=
?
?

m
o
l
.
We know that glucose,
C
6
H
12
O
6
, has a formula of
180.16

g

m
o
l

1
, i.e.
(
6
×
12.011
+
12
×
1.00794
+
6
×
16.00
)

g

m
o
l

1
=
?
?

g

m
o
l

1
......
We are not finished there, because we were asked to find the number of atoms in such a molar quantity, and there are 24 atoms in one molecule of glucose.
And so we multiply the molar quantity by number of atoms per mole, and then by Avogadro's number to get the number of atoms,
18

g
180.16

g

m
o
l

1
×
24

atoms

m
o
l

1
×
N
A
18

g
180.16

g

m
o
l

1
×
24

atoms

m
o
l

1
×
6.022
×
10
23

m
o
l

1
=
?
?

Who invented the Periodic table? And why Periodic tables are useful?

Answers

Answer:

It also helps them understand how life works. It even helps them predict how new materials will behave. In 1869, Dmitri Mendeleev, a Russian chemist, proposed the periodic law and his first periodic table. He published this periodic table two years later in a textbook, The Principles of Chemistry.

Explanation:

Answer:

Dmitri Mendeleev, To summarize, the periodic table is important because it is organized to provide a great deal of information about elements and how they relate to one another in one easy-to-use reference. The table can be used to predict the properties of elements, even those that have not yet been discovered

Explanation:I have already done this

pls help!!
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plz answer correctly
Urgent!!!​

Answers

Answer:

for number 2

Explanation:

Hydrogen. Hydrogen ignites in air. If hydrogen is present in a test tube, a lighted splint held near its mouth ignites with a squeaky pop.

Mg(s) + 2HCL(aq) ———->MgCl2 (aq) + H2 (g)
TEST: use a burning splint
If hydrogen is present it will burn with a pop sound.
C) Copper
D) Iron

What must happen for water to boil at a given pressure?
O A. The water molecules must become more orderly.
O B. The water must gain thermal energy from its surroundings.
O C. The average kinetic energy of the water molecules must decrease.
D. The water must give off thermal energy to its surroundings.

Answers

Answer:

B. The water must gain thermal energy from its surroundings.

Explanation:

Boiling is the process whereby a substance is changed from a liquid state to a gaseous state due to the application of heat. For boiling to be achieved, a liquid substance must reach or exceed its boiling point, which is the specific temperature at which a specific liquid boils.

For this change of state i.e. from liquid to gas, to occur, atoms or molecules of the liquid must gain kinetic energy and move faster. However, this kinetic energy cannot be attained without a rise in temperature, which causes the molecules to gain THERMAL ENERGY or heat energy and move fast. Thermal energy is the energy that arises from a hot substance.

Therefore, for water to boil at a given pressure, it must gain thermal energy from its external surroundings, which causes its molecules to have an increased kinetic energy and move faster. This fast movement of the molecules causes the transition of phases (from liquid to gas).

The water must give off thermal energy to its surroundings.

if a moving object changes direction, its ____ would NOT necessarily
If a moving object changes its direction, its
change.
A) speed
B) velocity
C) acceleration​

Answers

Velocity
is the change in position (which is displacement) per unit of time
Velocity (rate of change of displacement)
Is the answer I think

How can you guess the name of the element using the chemical formula ?

Answers

The number of protons define what element we're dealing with.

Answer: The number of protons define what element we're dealing with.

Which criteria are responsible for deciding whether a heterogeneous mixture is a colloid or a suspension?
A.
whether its composition is uniform and transparent
B.
whether the particles remain suspended for an extended period of time
C.
whether it can be separated into simpler substances through physical separation techniques
D.
whether the ratio of components is fixed

Answers

Answer: C.

whether it can be separated into simpler substances through physical separation techniques

Explanation:

A heterogeneous mixture is colloidal if

Particles cannot be seen with a naked eye.Particles can pass through filter paperIt doesn't undergo sedimentation.

A heterogeneous mixture is suspension if

Particles can be seen with a naked eye.Particles cannot pass through filter paperIt undergoes sedimentation.

So, the criteria are responsible for deciding whether a heterogeneous mixture is a colloid or a suspension is "whether it can be separated into simpler substances through physical separation techniques".

So, the correct answer is "c".

the correct answer is “c”

The ideal gas law is a combination of all the gas laws and states that PV = nRT. The value of n stands for
A. volume.
B. mass.
C. molecular mass
D. moles.

Answers

Answer:

d

Explanation:

p is pressure, v is vo;lume, t is temperature, r is ideal gas contstant, therefore n is the moles

D Bc the combination is the move for the reaction

Which of the following reactions are possible if sodium is more reactive than aluminum, 3 iron, and lead?
Reaction I: Sodium + Aluminum chloride →Sodium chloride + Aluminum Reaction II: Sodium chloride + Iron → Iron chloride + Sodium
Reaction III: Sodium + Lead chloride → Sodium chloride + lead

Answers

Answer:

Reaction I: Sodium + Aluminum chloride →Sodium chloride + Aluminum

Explanation:

Sodium being more reactive means that it will take the place of aluminium in whats called a displacement reaction and form.

Sodium chloride + Aluminum

Hello, sorry but I can’t answer because the answer is above. But I really need to ask a question so I need to answer one :((

pls help!!
plz answer correctly!
will give the brainliest!
Urgent!!​

Answers

a)

A: Copper

B: CuO

C: [tex]\mathrm{CuSO_4}[/tex]

D: $\mathrm{CuCO_3}$

E: $\mathrm{CO_2}$

F: $\mathrm{Cu(NO_3)_2}$

b)

$\mathrm{CuO+ H_2SO_4}\rightarrow \mathrm{CuSO_4 + H_2O}$

c)

$\mathrm{CuCO_3+ 2HNO_3}\rightarrow \mathrm{Cu(NO_3)_2+ CO_2+ H_2O}$

How is the definition of the word theory different in science versus in everyday life?

A. In everyday speech a theory is the same as a hypothesis-a statement that has (been) tested. In science a theory is a synthesis of a large body of verified information

B. In everyday speech a theory is the same as a hypothesis-a statement that has ( not been) tested. In science a theory is a synthesis of a large body of verified information

Answers

Answer:

The second option is correct.

In everyday speech a theory is the same as a hypothesis-a statement that has ( not been) tested. In science a theory is a synthesis of a large body of verified information. The correct option is B.

What is a hypothesis?

A hypothesis is an explanation proposed for a phenomenon. The scientific method requires that a hypothesis be testable in order for it to be considered a scientific hypothesis.

Scientists typically base scientific hypotheses on previous observations that cannot be adequately explained by existing scientific theories.

It aids in providing a link between the underlying theory and the specific research question.

It aids in data analysis and assesses the research's validity and reliability. It serves as a foundation or proof of the research's validity.

A theory is the same as a hypothesis in everyday speech—a statement that has (or has not been) tested. A theory in science is a synthesis of a large body of verified information.

Thus, the correct option is B.

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Explain where you would find the actual yield and the theoretical yield needed to calculate the percent yield of a reaction. Is the answer listed above the theoretical or actual yield?

Answers

Answer:

you could get the theoretical yield by just using the molar ratio in grams. 30g of C3H8 and the molar ratio is 1,  x grams of CO2 and the molar ratio is 3. Cross multiply and you'll get 90. it's way more simple

Explanation:

Explain what a limiting reactant is and describe the process to determine the limiting reactant in the example listed below: Given 3.4 grams of x compound with a molar mass of 85 g and 4.2 grams of y compound with a molar mass of 48 g How much of compound xy can be generated 2x + y2 = 2xy

Answers

Answer:

4.36g XY

I hope it helps!

4.36g!!!!!!!!!!! Did the math on paper!

i need help asap. any help is appreciated.

the diagram shows an electrochemical cell with copper (left) and zinc (right) strips.

**Label all parts (1-9), including the solutions in each beaker and the connecting tube
**Label which cell is the cathode and which cell is the anode include the charge on each strip
**Show, or describe in detail, the flow of electrons
**Describe what type of electrochemical cell is pictured. Explain how the cell works Include the oxidation the oxidation half-reacions in your explanation

Answers

Answer:

Explanation:

1- Cathode 2- copper electrolyte solution usually (CuSO4) 3- Cu half cell 4- bulb (when lighted, shows the current is flowing) 5- Zn half cell 6- Zn electrolyte solution 7- connecting wires 8- anode (Zn) 9-salt bridge

2- the copper-(Cu) electrode is the cathode and the zinc-(Zn) electrode will be the anode. This is because the cathode is negatively charged (while Cu is positively charged, so it attracts) and the anode is positively charged (while Zn will be negative)

3- the electrons flow from the anode, where oxidization takes place, to the cathode, where reduction reactions take place.

That's the best i can do. Hope it helps.

Answer:

Explanation:

• Label all parts (1–9), including the solutions in each beaker and the connecting tube.

1. Copper strip

2. Cu2+(aq) (copper electrolyte solution or copper nitrate)

3. Cathode compartment  

4. Light bulb  

5. Anode compartment  

6. Zn2+ (aq) (zinc electrolyte solution or zinc nitrate)  

7. The connecting wires or the external circuit  

8. Zinc strip  

9. Salt bridge  

• Label which cell is the cathode and which cell is the anode. Include the charge on each strip.

The copper strip is the cathode and the zinc strip is the anode. The anode is positively charged and the cathode is negatively charged. This is because the cathode attracts a positive charge and the anode attracts a negative charge.  

• Show, or describe in detail, the flow of electrons.

The atoms from the zinc strip are oxidized into zinc ions, (the anode is where oxidation occurs). The electrons in the anode then travel through the wire to the copper strip. The electrons then merge with the copper ions in the solution creating copper metal (the cathode is where reduction occurs).  

• Describe what type of electrochemical cell is pictured. Explain how the cell works. Include the oxidation and reduction half-reactions in your explanation.  

This is a voltaic or galvanic cell. It works by using spontaneous oxidation-reduction reaction to generate electricity.  

Zn(s) --- Zn2 + (aq) + 2e-  

Cu2 + (aq) + 2e- --- Cu(s)

9 different lab rules Explain how students will do a safe lab

Answers

Answer:

Report all accidents, injuries and breakage of class or equipment to instructor immediately.Keep pathways clear by placing extra items on the shelves or under the work tables. If under the tables make sure that these items can no be stepped on.Long hair (chin-length or longer) must be tied back to avoid catching fire.Wear sensible clothing including footwear. Loose clothing should be secure so they do not get caught in a flame or chemicals.Work quietly - know what you are doing by reading the assigned experiment before you start to work. Pay close attention to any cautions described in the laboratory exercises.Do not taste or smell chemicals.Wear safety goggles to protect your eyes when heating substances, dissecting, etcDo not attempt to change the position of glass tubing in a stopper.Never point a test tube being heated at another student or yourself. Never look into a test tube while you are heating it.

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1. Wear equipment at all times when doing procedures.
2. If something breaks step away and do not try to fix it
3. Do not smell or eat the chemicals it is very dangerous
4. Do not put anything up to your eye.
5. Make sure you do not wear something loose so it does not interfere with anything.
6. Do not run or anything with testing tubes.
7. Pay close attention when doing something with chemicals, you do not want to go wrong or explore something up.
8. If glass breaks or something goes wrong, such as accidents or injuries tell the teacher.
9. Do not take off anything you are suppose to wear in class, such as safety goggles, also do not try to mess with chemicals.

CH2OCH2 is an organic compound with an oxygen atom bonded between the two carbon atoms, and it is not very soluble in water. What type of compound is this?

Alcohol

Amine

Carbohydrate

Ether

Answers

Answer:

D) Ether

Explanation:

Ethers are oxygen atoms bonded between two carbon atoms. Also, I just took the test :)

CH2OCH2 is an organic compound with an oxygen atom bonded between the two carbon atoms, and it is not very soluble in water is an ether compound.

So, option D is correct one.

What is an ether?

An ether is the functional group of organic compound in which one oxygen atom bonded by two alkyl group or aryl group is called an ether.

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are mountains physical or chemical property
Is water a physical or chemical property
is a box a physical or chemical property
is a lion a physical or chemical property

Answers

Answer: mountains not sure

Water is chemical

Box is physical

Lion is physical

Hope this helped!!

Answer:

Answer: mountains not sure

Water is chemical

Box is physical

Lion is physical

Hope this helped!!

Explanation:

How many sulfur atoms are generated when 9.42 moles of H2S react according to the following equation: 2H2S+SO2→3S+2H2O
A) 8.51 × 10^24
B) 3.78 × 10^24
C) 8.51 × 10^23
D) 9.42 × 10^23

Answers

Answer:

A) 8.51 × 10²⁴  

Explanation:

1. Gather all the information

            2H₂S + SO₂ ⟶ 3S + 2H₂O

n/mol:   9.42

2. Calculate the moles of S atoms

The molar ratio is 3 mol S:2 mol H₂S

[tex]\text{Moles of S} = \text{9.42 mol H$_{2}$S} \times \dfrac{\text{3 mol S }}{\text{2 mol H$_{2}$S }} = \text{14.13 mol S}[/tex]

3. Calculate the atoms of S

[tex]\text{Atoms of S } = \text{14.13 mol S} \times \dfrac{6.022 \times 10^{23}\text{ S atoms}}{\text{1 mol S}} = \mathbf{8.51 \times 10^{24}}\textbf{ S atoms}[/tex]

 

The sulfur atoms that should be generated is [tex]A) 8.51 \times 10^24[/tex].

Given that,

9.42 moles of H2S reacted to the given equation.Also, 1 mole for the substance contains [tex]6.022 \times 10^23[/tex] no of atoms & molecules.

The calculation is as follows:

[tex]= \frac{3\times 6.022\times 10^23\times 0.42}{2}\\\\= 85.0909 \times 10^23\\\\= 8.509 \times 10^24\\\\= 8.51 \times 10^24[/tex]

Therefore we can conclude that the sulfur atoms that should be generated is [tex]A) 8.51 \times 10^24[/tex].

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A substance X contains 10 gram of calcium carbonate calculate the number of mole of calcium carbonate present in X ​

Answers

[tex] \LARGE{ \boxed{ \rm{ \red{Required \: answer}}}}[/tex]

☃️ Chemical formulae ➝ [tex]\sf{CaCO_3}[/tex]

How to find?

For solving this question, We need to know how to find moles of solution or any substance if a certain weight is given.

[tex] \boxed{ \sf{No. \: of \: moles = \frac{given \: weight}{molecular \: weight} }}[/tex]

Solution:

Atomic weight of elements:

Ca = 40

C = 12

O = 16

❍ Molecular weight of [tex]\sf{CaCO_3}[/tex]

= 40 + 12 + 3 × 16

= 52 + 48

= 100 g/mol

❍ Given weight: 10 g

Then, no. of moles,

⇛ No. of moles = 10 g / 100 g mol‐¹

⇛ No. of moles = 0.1 moles

☄ No. of moles of Calcium carbonate in that substance = 0.1 moles

━━━━━━━━━━━━━━━━━━━━

no of the moles calcium carbonate is 0.01

Which of these is the definition of the EXPLODE Physical Hazard?

A) Chemicals that are likely to be flammable and/or support a fire
B) Chemicals that release high pressure and could cause bodily injury
C) This is a potential reaction that could take place when two chemicals are
mixed together.
D) This is when a chemical breaks down and could become harmful when
handled improperly or exposed to extreme temperatures

Answers

Answer:

Explanation:

Physical hazard means a chemical for which there is scientifically valid evidence that it is a combustible liquid, a compressed gas, explosive, flammable, an organic peroxide, an oxidizer, pyrophoric, unstable (reactive) or water-reactive.

EXPLODE:  

to expand with force and noise because of rapid chemical change or decomposition, as gunpowder or nitroglycerine (opposed to implode).

to burst, fly into pieces, or break up violently with a loud report, as a boiler from excessive pressure of steam.

Answer:B

The other person got everything right, except he just didn’t say what letter so if you want an explanation read his/hers

Stars are _____
for most of their lives.
A) stable
B) unstable
C) unpredictable

Answers

Answer:

A. Stable

Explanation:

unless ur talking about the star in your PFP, then it's unstable xd

Answer:c

Explanation:

1. What are some of the steps to the scientific method?​

Answers

Answer:

Observation.

Question.

Hypothesis.

Prediction.

Experiment.

Conclusion.

Explanation:

Make an observation about something.

Form a question about that thing.

Make a hypothesis.

Predict what will happen.

Experiment.

Draw a conclusion.

Answer:

These are some steps  - it usually is listed with 5 basic steps.  Feedback could be the additional step.

Explanation:

Make an observation.  After you make an observation ask a question.  Now you will be able to form your hypothesis - what is it that you are going to test?  Now, you can make a predication based on the hypothesis that you created.  Make sure to test the predictions that you make.  Collect data.  Check to see if others have done any work like you are collecting data on.  Use data to make your final decisions - based upon the hypothesis and predictions that you made.  If you get confused or lost - start again and change your hypothesis.  Always, always, always reflect on your results.  Make sure to use DATA to back up what you find.  

What is the molar mas of zinc (Zn)? 6.02 g/mol 30.0 g/mol 48.7 g/mol 65.38 g/mol

Answers

It's in the periodic table.

See the attached picture. The number below 'Zn' is the molar mass. The closest answer choice is 65.38

Molar mass is defined by the ratio of the mass to the moles. The molar mass of zinc (Zn) in the periodic table is said to be 65.38 g/mol. Thus, option D is correct.

What is molar mass?

Molar mass is the mass of the element or the compound in one mole of the given substance. It is denoted in units gm/ mol. The units come from the ratio of mass in grams to the moles in mol.

It is used to calculate the amount of the substance present in the mole of the substance and can be expressed as particles, like ions, or molecules with the help of Avogadro's number.

The molar mass or the atomic mass of the zinc element is denoted in the periodic table. The mass is written on the lower side of the element symbol.

Therefore, the molar mass of zinc (Zn) is 65.38 g/mol.

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When does a solar Eclipse happen, and how?

Answers

A solar eclipse occurs when a portion of the Earth is engulfed in a shadow cast by the Moon which fully or partially blocks sunlight. This occurs when the Sun, Moon and Earth are aligned.

Answer:

Solar Eclipse happens when the moon gets between the sun and the earth, the moon gets all the light and blocks the earth from getting sunlight.

Hope this helps ;) ❤❤❤

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Answers

1.a) All except copper can react with dilute sulphuric acid.
REACTION OF DILUTE SULPHURIC ACID WITH COPPER (II) CARBONATE
CuCO3 (s) + H2S04 (aq)———> CuSO4(aq) +CO2(g)+ H2O (l)

REACTION OF COPPER (II) OXIDE WITH DILUTE SULPHURIC ACID
CuO (s) + H2SO4 (aq)———> CuSO4 (aq) + 2H2O (l)

Answer:

The other person was correct =w0

Explanation:

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List the two places you should look first when considering a topic to write about. How did Japanese economy recover so quickly after WW2 How to do this question plz answer me step by step plzz What expression is equal to6 e + 3 (e-1) Which of the following approaches should the Fed use if it experiences large lags and mistakes in monetary policy?a. Discretionary policy b. An eclectic approach c. Fixed rules d. Fiscal policy Which organization does not work for consumers Federal trade comission Food and drug administration Federal treasury Better business bureau Where is La Martinique located PLEASE HELP!!! (1/5) - 50 POINTS- What would the 60 is x% of 12. Find the value of x. Estela compra la comida en la _________. tienda juguetera biblioteca comisara Metal A reacts with oxygen to form an oxide.The oxide is dissolved in water to form a soluble hydroxide.What is the solution formed called and what is metal A The expression $16x^2-106x-105$ can be written as $(8x + a)(2x + b),$ where $a$ and $b$ are integers. What is $a + 2b$? The argon atoms are excited into an excited state before emitting the 488.0 nm laser. It is known that the energy of the first ionization energy of argon is 1520 kJ mol-1. What is the energy level of the excited state (in unit eV) lies below the vacuum energy level (0 eV) Which of the following refers to how companies remain in business? sustainability corporate social responsibility carbon footprint closed-loop supply chains economic sustainability A mass m = 0.6 kg is released from rest at the top edge of a hemispherical bowl with radius = 1.1 meters. The mass then slides without friction down the inner surface toward the bottom of the bowl. At a certain point of its path the mass achieves a speed v = 3.57 m/s. At this point, what angle \theta\: ( in degrees) does the mass make with the top of the bowl? Which third-party conflict resolution strategy manages the process and context of interaction between the disputing parties but does not impose a solution on the parties Read this paragraph from The Dark Game. Another thing that changed very little in the years between the wars was the means of obtaining military intelligence. Although the use of photography and the telegraph brought some technological advances, the craft of spying on the enemy's army still relied on fieldwork. For the most part, intelligence was gathered in simple ways. Prisoners of war and deserters were interrogated. The Union army was always interested in hearing what runaway slaves had to report. And, of course, both armies relied on cavalry scouts, signal intercepts, visual observation, and captured correspondence. What is the best summary of this paragraph 1. Classify the following numbers as rational or irrational.a) 45 b) 55 c) 196 d) 576 e) 27Can u guys answer this question pls The Bohr model pictures a hydrogen atom in its ground state as a proton and an electron separated by the distance a0 = 0.529 1010 m. The electric potential created by the electron at the position of the proton is Find f(x) and g(x) so the function can be expressed as y = f(g(x)). (1 point) [tex]y=\frac{7}{x^{2} } +10[/tex]