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 1

Answer:

The second option is correct.

Answer 2

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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Related Questions

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:

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

Explanation:

See the image attached :)

You would use v for Volta

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 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

pls help!!
plz answer correctly!
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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)

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

A subtance X contains 10 gram of calcium carbonate calculate the number of oxygen atom present in 10 gram of calcium carbonate ​

Answers

[tex] \LARGE{ \boxed{ \rm{ \purple{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]

And, Then we need to find the number of molecules which can be found by:

[tex] \large{ \boxed{ \sf{no. \: of \: molecules = N_A \times no. \: of \: moles}}}[/tex]

Here, Na = Avagadro Number (6.022 × 10²³)

☀️ As it is a compund, We considered molecules. Then, we can predict the no. of atoms of elements in one molecule of compound and get the answer.

Solution:

Atomic weight of elements:

Ca = 40C = 12O = 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 the given weight = 0.1 moles

Finding no. of molecules,

⇛ No. of molecules of CaCO3 = 0.1 × 6.022 × 10²³

⇛ No. of molecules of CaCO3 = 6.022 × 10²²

Now,

1 molecule of [tex]\sf{CaCO_3}[/tex] = 3 atoms of Oxygen.

Then, 6.022 × 10²² molecules will have,

= 3 × 6.022 × 10²² atoms of oxygen

= 18.022 × 10²² atoms of oxygen

In more scientific form,

= 1.8022 × 10²³ atoms of oxygen

☄ Hence, Final answer - 1.8022 × 10²³ atoms

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CaCo3 is the answer to this

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:

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 ;) ❤❤❤

Magnesium nitrate, magnesium hydroxide and magnesium carbonate all decompose when heated.
Which statement about these decomposition reactions is correct?
A. Magnesium carbonate decomposes to release carbon dioxide and oxygen
B. Magnesium hydroxide decomposes to release hydrogen and oxygen
C. Magnesium hydroxide decomposes to release water vapour
D. Magnesium nitrate decomposes to release oxygen only​

Answers

Answer:

C

Explanation:

The reactions:

[tex] \mathrm{Mg(NO_3)_2 \longrightarrow MgO+ 2NO_2 +O_2}\\

\mathrm{Mg(OH)_2 \longrightarrow MgO + H_2O}\\

\mathrm{MgCO_3 \longrightarrow MgO +CO_2}[/tex]

Electronic configuration is best described as
a. protons in the nucleus of atom
b. electrons on the outermost orbit
c. attraction of electrons between two atoms
d. arrangement of electrons in an atom​

Answers

Answer:

d

Explanation:

The arrangement of electrons in an atom

Answer:

D. Arrangement of electrons in an atom.

Explanation:

K L M N O P Q

2 8 8 18 18 32 50

The path where electrons revolve is called orbits.

Hope his helps ;) ❤❤❤

Examine the assumption. Assumption: The Earth is flat. Which statements accurately describe how the assumption affects scientific thinking? (Select all that apply. People think the Earth is flat, so they think that the Earth does tilt on its axis while revolving around the Sun. People think the Earth is flat, so they think that it is only safe to travel certain distances from a given location. People think the Earth is flat, so they think that when the Sun sets, it goes underneath the Earth. People think the Earth is flat, so they think that when traveling in a straight line, there is no end.

Answers

Answer:

The statements that accurately  describe how the assumptions affects scientific thinking are;

People think that the Earth is flat, so they think that it is only safe to travel certain distances from a given location.

People think that the Earth is flat, so think that when the Sun sets, it does underneath the Earth

Explanation:

The proof that the Earth is round was made by the Greek philosopher, Aristotle, over 2,000 years ago, by observation of the change in the constellation of the stars as a person changes his position North or South

The initial belief was that the Earth is flat disc surrounded by water, while the it was believed that the shape of the Earth was that of a square with four mountains at the vertices that support the sky from falling.

the statements are the answer are the problem to

(Pls Help) The study of such concepts as motion, force,y energy, matter, heat, sound, light, and the components of atoms is:
- Physics
- Biology
- Earth Science
- Astronomy​

Answers

Answer:

It is Physics

because these are all physical components and/or characteristics

-Biology is the study of life

-Earth science is the study of the biosphere we live in

-Astronomy is about space

Answer:

Physics

Explanation:

Physics is the study of motion and force...

Biology is the study of life

Earth Science is wind, water and uk...

Astronomy is about planets and stars

Help me!!!
will give the brainliest!!
plz answer correctly
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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:

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

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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I thought in the third shell there are 18 electrons, but why are they gaining only 2 electrons?? Pls tell me... I have exam tomorrow....

Answers

Use this picture to understands.
The picture will help you understand

pls help!!
will give the brainliest
plz answer correctly
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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

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)

1) what is formed when hydrogen burns ? write the equation for the reaction .
2) why do you think that, when hydrogen burns, the flame Rises quickly ?​

Answers

Answer:

formed by burns rises quickly hydorogen

[tex] H_2+\frac12O_2 \longrightarrow H_2O[/tex]

I don't think I need to name the product.

this reaction is very exothermic. so the gases and the flames are very hot, i.e. very lighter (hot air rises) than the normal air. so it rises quickly

What do you mean by the ’4R principle’ to develop environment friendly habits?

Answers

Answer:

We mean this by '4R principle'

ReduceReuseRecucle

The question may be about ' 3R' principle....

It means reduce reuse and recycle!

A substance X contains 10 gram of calcium carbonate calculate the number of oxide of calcium carbonate present in X ​
please help

Answers

Answer:

I got 0.01 moles, hope this helps!

First you have to calculate the number of moles of caco3 ! Use n=m/M ! YOH will get 0.1 moles ! By using stiochiometry you will get


O3/Caco3 = 48/100 (molar masses ) = x/0.1. ( using moles ) then you will get x = 0.048 moles

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:

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!

Which series represents the flow of thermal energy in a home with a refrigeration cooling system?
Inside air coolant in cooling system – outside air
X Fuel
- air inside piston chamber piston movement
Inside air
outside air
Fuel
Inside air​

Answers

Answer

A is the answer

Answer: A








Hope that helps:)

calculate the number of moles equivalent to 5.0 gram of calcium oxide ​
please help

Answers

Answer:

The answer is 0.089 mol

Explanation:

The number of moles of a substance can be found by

[tex]n = \frac{m}{M} [/tex]

where

n is the number of moles

M is the molar mass

m is the mass of the substance

To find the number of moles we must first find the molar mass

Chemical formula for calcium oxide is

CaO

So the molar mass of CaO is

M( CaO) = 40 + 16 = 56 g/mol

Mass of CaO = 5.0g

Substitute the given values into the formula

The number of moles in 5.0g of calcium oxide is

[tex]n = \frac{5 \: g}{56 g/mol} [/tex]

We have the final answer as

n = 0.089 mol

Hope this helps you

[tex] \LARGE{ \boxed{ \pink{ \rm{Answer}}}}[/tex]

☃️ Chemical formulae ➝ [tex]\sf{CaO}[/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 = 40O = 16

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

= 40 + 16

= 56 g/mol

❍ Given weight: 5 g

Then, no. of moles,

⇛ No. of moles = 5 g / 56 g mol‐¹

⇛ No. of moles = 0.089 moles [tex]\approx[/tex] 0.09 moles

⚘ No. of moles of Calcium oxide in the given weight = 0.09 moles approx.

━━━━━━━━━━━━━━━━━━━━

The lock-and-key mechanism refers to
the complementary shapes of an enzyme and a substrate.
the attractive forces between an enzyme and a substrate.
the ability of an enzyme to lower the activation energy of a reaction.
the ability of an enzyme to "unlock" the products of a reaction.

Answers

Answer:

A). The complementary shapes of an enzyme and a substrate.

Explanation:

The Lock-and-key mechanism was proposed by Emil Fischer for the first time and characterized as the metaphor which helps in elucidating the specificity of the enzymatic reactions. In this metaphor, the lock is described as the enzyme while 'key' is characterized as the substrate which the enzyme acts upon. If the key is not appropriately sized, it will not fit into the active site i.e. the keyhole of the lock or enzyme and reaction will not take place. Thus, option A is the correct answer.

the complementary shapes of an enzyme and substrate

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

Answers

Explanation:

this may help u follow me and mark as brainlist PlZzzzz

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
=
?
?

Ice sinks in methanol, but floats on water. From this we can conclude: A The density of ice in methanol must be different from that in water. B The density of water must be less than the density of methanol. C The density of ice must be greater than the density of water. D The density of methanol must be less than the density of water.

Answers

Answer:

A

Explanation:

Density: water>ice>methanol

Ice is lighter than methanol hence it is able to float on it. However, ice is denser than water hence it sinks.

Answer:

The answer is A.

Explanation:

The density of ice in methanol must be different from that in water.

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 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.

Which is a similarity between alcohol fermentation and aerobic respiration?

Answers

I found this information:

Anaerobic respiration begins the same way as fermentation. The first step is still glycolysis, and it still creates 2 ATP from one carbohydrate molecule. However, instead of ending with glycolysis, as fermentation does, anaerobic respiration creates pyruvate and then continues on the same path as aerobic respiration.

After making a molecule called acetyl coenzyme A, it continues to the citric acid cycle. More electron carriers are made and then everything ends up at the electron transport chain. The electron carriers deposit the electrons at the beginning of the chain and then, through a process called chemiosmosis, produce many ATP. For the electron transport chain to continue working, there must be a final electron acceptor. If that acceptor is oxygen, the process is considered aerobic respiration.

Scientists believe that fermentation and anaerobic respiration are older processes than aerobic respiration.

I hope this help. :)

have a good day!


Both begin with glycolysis.
Both occur in mitochondria.
Both require oxygen to proceed.
Both end with the electron transport chain.
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