Can someone do a True or false for these

Can Someone Do A True Or False For These

Answers

Answer 1

Answer:

all i can accurately say is that 2 and 4 are both true


Related Questions


A television wave has a_____
wavelength than an infrared wave

Answers

Answer:

Longer

Explanation:

:)

1. When a solution of an acid contains larger amount of acid, it is said to be

Answers

Answer:

highly concentrated solution of acid

Calculate the numerical Kc value for the following reaction if the equilibrium mixture contains 0.51 M CO , 0.30 M H2 , 1.8 M CH4 , and 2.0 M H2O.

CO(g) + 3H2 (g) ⇌ CH4 (g) + H2O (g)
Show work

Answers

Answer:

uh i think this is the answer

Explanation:

I am doing a lab and I am not sure how to calculate the concentration of the chemical formulas used in the lab. Would I need to use the 15ml and add it to the 10 ml of the first solution to find the concentration. Thank you

Answers

Answer:

C = m/V

Explanation:

In order to calculate the concentration of a mixture you would need to use the formula for concentration, which is the following...

C = m/V

In this formula C is the concentration, m is the mass of the compound that is being added and mixed into the solution, and V is the total volume of the mixture. The mass of m is in terms of number of moles. Therefore, we would need more information in order to calculate the actual concentration of the mixture that you are trying to find in this scenario. Using the formula above should be enough using the values that you have in your actual workbook.

Help me please please

Answers

where is the directions here?

I cannot answer this if no directions

Can you retake the photo I can't see the question

what is the difference between chemistry with other natural science​

Answers

Answer:

Hi!

chemistry;

unlike others, is more about atomic structure.

HAVE A NİCE DAY

Explanation:

GREETİNGS FROM TURKEY ツ

Answer:

CHEMISTRY means the study of matter and the different chemical reactions that any substance goes through, like, matters composition, structure, shape, state, etc. while geology, biology and physics are the other branches of science and chemistry acts as a bridge between physics and geology with biology.

hope it helps

have a nice day

Electrons will fill all empty orbitals within a sublevel before they begin to pair up. This is:

A. Hund’s rule
B. The Aufbau principle
C. None of these
D. Conservation of energy

Answers

The answer is A. Hund’s rule

Answer: Hund’s rule

Explanation:

Could anyone provide me with a run down on Electrolysis?​

Answers

Negatively charged ions move to the positive electrode during electrolysis. They lose electrons and are oxidised . The substance that is broken down is called the electrolyte.

Answer:

La electrólisis es un proceso físico por el que se descompone una sustancia en disolución a través de la corriente eléctrica. Para que la electrólisis sea posible es necesaria una fuente de alimentación continua, una disolución iónica y dos polos (ánodo y cátodo), que atraen hacia sí los iones de signo opuesto.

Calculate the molarity of 198 g of barium iodide (Bal2) in 2.0 l of solution

Answers

Answer: The molarity of 198 g of barium iodide [tex](BaI_{2})[/tex] in 2.0 L of solution is 0.253 M.

Explanation:

Given: Mass = 198 g

Volume = 2.0 L

Molarity is the number of moles of solute present in liter of a solution.

Moles is the mass of a substance divided by its molar mass. So, moles of barium iodide (molar mass = 391.136 g/mol) is calculated as follows.

[tex]Moles = \frac{mass}{molar mass}\\= \frac{198 g}{391.136 g/mol}\\= 0.506 mol[/tex]

Now, molarity is calculated as follows.

[tex]Molarity = \frac{moles}{Volume (in L)}\\= \frac{0.506 mol}{2.0 L}\\= 0.253 M[/tex]

Thus, we can conclude that the molarity of 198 g of barium iodide [tex](BaI_{2})[/tex] in 2.0 L of solution is 0.253 M.

AYUDA DOY CORONA

Numero masico del oro

Answers

Answer:

huh what?

Explanation:

Is  196,96657  u

I hope I've helped :)

What is the percent by volume of alcohol, in a solution containing 24 mL of alcohol dissolved in 90 mL of water?

Answers

Answer:

use this formula it will help u .

Explanation:

If 60 ml of ethanol is diluted to a final volume of 400 ml, you create a 35 % ethanol solution.

First, realize that you creating a solution with that contains a polar solute (ethanol) with a polar solvent (water). Remember that "like dissolves like."

If you pour 60 ml of ethanol in a volumetric flask, you add 340 ml of water to dilute this solution to a final volume of 400 ml.

Volumetric flasks are designed to make or dilute solutions to specified final volume.

Since you have 60 ml of ethanol in a total solution of 400 ml, the percentage of ethanol is 35 %.

This result is obtained in the following manner.

ml/400. ml. = .35

.35 x 100% = 35 %

Which of the following equalities is not correct?
a. 1 cm^3 = 1 mL
b. 1000 mm = 1 m
c. 100 cg = 1 g
d. 10 kg = 1 g

Answers

Answer:

a. 1 cm^3 = 1 mL

explanation:

The answer is , A. 1 cm^3 = 1mL

Which is TRUE about the structure of the atom? Select all that apply.

a
the densest part of the atom is the nucleus of the atom
b
the outermost part of the atom is where electrons are found
c
the nucleus of the atom is where protons and neutrons are found.
d
the outer part of the atom is called the antinucleus.
e
the nucleus of the atom has a diameter of about 10-10 m.

Answers

A. The densest part of the atom ie the nucleus of the atom

Which idea behind the shape of molecules includes the concept that electrostatic repulsion between electron pairs surrounding an atom causes these pairs to be separated as far as possible

Answers

Answer:

VSEPR theory

Explanation:

The valence shell electron pair repulsion theory was propounded by Gillespie and Nylom (1957).

The entire idea of the VSEPR theory is that the shape of a molecule depends on the electrostatic repulsion between electron pairs surrounding the central atom in a molecule which causes these pairs to be separated as far as possible.

The shapes of many molecules can be accurately predicted based on this model.

O2 oxygen is diatomicO + O O=O Double Bond

Answers

Answer:

O 100

Explanation:

A 20.0 mL solution of NaOH is neutralized with 24.1 mL of 0.200 M HBr. What is the concentration of the original NaOH solution

Answers

Answer:

0.241 M

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

HBr + NaOH —> NaBr + H₂O

From the balanced equation above,

The mole ratio of acid, HBr (nₐ) = 1

The mole ratio of base, NaOH (n₆) = 1

Finally, we shall determine the concentration of the NaOH solution. This can be obtained as follow:

Volume of base, NaOH (V₆) = 20 mL

Volume of acid, HBr (Vₐ) = 24.1 mL

Concentration of acid, HBr (Cₐ) = 0.2 M

Concentration of base, NaOH (C₆) =?

CₐVₐ / C₆V₆ = nₐ/n₆

0.2 × 24.1 / C₆ × 20 = 1/1

4.82 / C₆ × 20 = 1

Cross multiply

C₆ × 20 = 4.82

Divide both side by 20

C₆ = 4.82 / 20

C₆ = 0.241 M

Therefore, the concentration of the NaOH solution is 0.241 M

I am having trouble converting :(

Answers

Answer:

For the first question, to determine the total number of molecules of nitrogen dioxide, first make use of the molar mass of the nonpolar compound and then use that to find the total number of moles and then subsequently after make use of the ratio for the Avogadro's number to determine the total number of molecules of this compound.

For the final question, do the inverse, where we make use of the molecules of the compound and then use Avogadro's number to determine the moles of the compound and then use the same molar mass of the compound to determine the grams of the Nitrogen Dioxide.

calculate the final pressure of a gas that is expanded from 725cm³ at 30C and 1.19 atm to 1.12cm³ at 43C​

Answers

Answer:

Final pressure, P2 = 1088.89 atm

Explanation:

Given the following data;

Initial volume, V1 = 725 cm³

Initial temperature, T1 = 30°C

Initial pressure, P1 = 1.19 atm

Final volume, V2 = 1.12 cm³

Final temperature, T2 = 43°C

To find the final pressure (P2), we would use the combined gas law.

Mathematically, the combined gas law is given by the formula;

[tex] \frac {PV}{T} = k [/tex]

[tex] \frac {P_{1}V_{1}}{T_{1}} = \frac {P_{2}V_{2}}{T_{2}} [/tex]

Substituting into the formula, we have;

[tex] \frac {1.19*715}{30} = \frac {P_{2}*1.12}{43} [/tex]

[tex] \frac {850.85}{30} = \frac {P_{2}*1.12}{43} [/tex]

[tex] 28.3617 = \frac {P_{2}*1.12}{43} [/tex]

Cross-multiplying, we have;

[tex] 28.3617 * 43 = 1.12P_{2} [/tex]

[tex] 1219.5531 = 1.12P_{2} [/tex]

[tex] P_{2} = \frac {1219.5531}{1.12} [/tex]

Final pressure, P2 = 1088.89 atm

Select the correct text in the passage.

Answers

Explanation:

Oceans can influence weather and climate. For example, cities located near large water bodies like oceans tend not to have extreme climates

hey i have personal question! um is it safe to use a shower head / faucet for a pleasure thing.. like will it lead me to std’s/sti’s….? infections? will it harm anything? help me pls!

Answers

It will not harm you unless the water is too hot or the water pressure is very high but you will be fine

Answer: Dont let the water get inside your private area because it can lead to you washing out the healthy bacteria in your private area !

Explanation:

Also dont do it because you dont know if your water is clean enough for that ..

1. Which of the following species exhibit tetrahedral geometry?
a. CCl4 b. PCI5 c. NH3 d. CO2

2. Which statement correctly describes the Valence Shell Electron Pair Repulsion (VSEPR) Theory? The valence electron pairs are__________.
a. The valence electron pairs are given by the group number in the periodic table.
b. The valence electron pairs are the outermost electrons of the atom that areinvolved in the bonding.
c. The valence electron pairs repel one another and tend to stay as far apart aspossible.
d. The valence electron pairs are the lone pairs of the atom.

3. Which of the following statements about resonance is TRUE?

I. Resonance hybrids occur because a compound changes back and forth between two or more resonancestructures
II. Resonance structures differ in the arrangement of electrons but not in the arrangement of atoms.
III. Resonance hybrids contain delocalized electrons.
IV. Resonance structures for a given compound always contribute equally to the resonance hybrid.
V. Resonance structures occur when there are two or more valid Lewis structures for a given compound.
VI. Resonance hybrids are a composite of resonance structures.

a.I, II, V, VI
b. II, III, IV, VI
c. II, III, V, VI
d. II, IV, V, VI

4. How many resonance forms will nitrate ion (NO3) have?
a. - 1 b. 1 c. 2 d. 3

5. What is the first noble gas?
a. Xenon b. Radon c. Helium d. Krypton

6. What is the principle used for filling of atomic orbitals?
a. Azimithual Principle
b. Hund's Principle
c. Pauling's Exclusion Principle
d. Aufbau Principle

7. How many electrons can "m" shell accommodate?
a. 16 b. 17 c. 18 d. 19

8. What number of shells used for the accommodation of electrons in an atom? a. one b. two c. three d. four

9. What distribution does the electron configuration describe?
a. protons
b. neutrons
c. electrons
d. ions

10. How many total electrons can the "p" orbitals hold?
a. 3 b. 1 c. 7 d. 6

11. Who are the founding fathers of Quantum Mechanics?
a. Werner Karl Heisenberg
b. Isaac Newton
c. Erwin Schrodinger
d. a and c

12. There are _types of quantum numbers.
a. 2 b. 4 c. 5 d. 7

13. Which of the following elements can only form one bond in a Lewis structure? a. H b. O c. Al d. N

14. Which rule states that electron will go into empty orbitals of the same energy before entering into an orbital with an electron present?
a. Hand's rule
b. Hund's rule
c. Pauli Exclusion Principle
d. Aufbau Principle

15. What is the definition of diamagnetic atom?
a. An atom where all of the electrons are paired
b. An atom where some of the electrons are paired.
c. An atom where none of the electrons are paired.
d. An atom attracted to a magnetic field.​

Answers

Answer:

a

Explanation:

Its because ammonium has thee hydrogen atoms

2002040_MIJ COMP SCI 1_SEM 1 CR_PY
The three main types of scientific investigations are descriptive, comparative, and experimental. Which components
are included in all three types of investigations?
a scientific question
an independent variable
a dependent variable
a procedure
a control group
a conclusion

Answers

Answer:

a scientific question

Procedure

Conclusion.

Explanation:

Scientific investigation is usually carried out to explain and give answers to natural phenomenon. Now, this scientific investigation is performed through the three main types as described in the question.

With that being said, the most common parts of all types of investigation are :

1. Scientific question: In this stage, questions are usually asked on the basis of observation made which could be answered.

2. Procedure: In this stage, the dimension of the steps are followed to answer and test the scientific question.

3. Conclusion: This is the primary aim that we check when done with our sample values

classify each of the following solids as ionic,metallic, molecular, network (covalent)or amorphous?
1) Tetra phosphorous deicide(P4O10)
2)Graphite
3) Ammonium phosphate (NH4)3po4
4) Brass
5)SiC
6)Rb
7)l2
8)LiBr
9)P4
10) Plastic
11)Si​

Answers

Answer;

P4O10 - molecular solid

Graphite - network solid

Ammonium phosphate - ionic

Brass - metallic

SiC - network solid

Rb- metallic

I2 - molecular

LiBr- ionic

P4 - molecular

Plastic - amorphous

Si - network

Explanation:

An ioinc solid is made up of a pair of oppositely charged ion held together by electrostatic interaction between the bonding species.

A covalent solid is a solid in which the atoms involved in the solid are bonded together by covalent bonds. Covalent solids are also molecular.

Metals are held together by interaction of metal ions and a sea of electrons. This is called the metallic bond.

A network solid is composed of covalently bonded atoms that repeat itself in a definite manner. E.g SiC

The structure and bonding of diamond, which is formed from graphite at extreme pressures, should be similar to that of elemental:

Answers

Answer:

silicon and germanium.

Explanation :

The passage states that at extreme pressures an elemental solid assumes the structure and bonding characteristics of a heavier element in the same column of the periodic table. The structure and bonding of diamond, which is a form of carbon, would therefore be most like other elements in the same group of the periodic table as carbon. This group contains silicon and germanium.

How do you think you results would be affected if using K2Cr2O7/H2SO4 as the oxidizing agent instead of KMnO4

Answers

Answer:

Due to weak oxidizing agent.

Explanation:

In my opinion the results would be affected if using K2Cr2O7/H2SO4 as the oxidizing agent instead of KMnO4 because K2Cr2O7/H2SO4 is weak oxidizing agent as compared to KMnO4. An oxidizing agent is a substance that has the ability to oxidize other substances means that accept their electrons so that's why the results of strong oxidizing agent is different than weak oxidizing agent.

The results of the reaction will be affected due to the difference in :

Oxidizing agent strength

The use of  K₂Cr₂O7 / H₂SO₄ which is weaker oxidizing agent in the reaction will produce a different result from the use of KmnO₄ which is a stronger oxidizing agent.

This is because stronger oxidizing agents in reaction readily accept electrons from reactants while weaker oxidizing agents do not readily accept electrons from substances reacting in the reaction.

Therefore we can conclude that The results of the reaction will be affected due to the difference in oxidizing agent strength

Learn more : https://brainly.com/question/16450420

Although your question is incomplete a general solution is provide within the scope of your question

What is water cycle ?​

Answers

Answer:

is the water that passes through the carbon cycle of atmosphere

help sdfghrthfbfdve aahhhhhhhh

Answers

i believe the answer is C !

Hands moving on a battery-operated clock is an example of what kind of
energy conversion?
A. Heat energy being converted to gravitational potential energy
B. Gravitational potential energy being converted to heat energy
C. Chemical potential energy being converted to kinetic energy
D. Kinetic energy being converted to chemical potential energy

Answers

C. Chemical potential energy being converted to kinetic energy

Answer:

Chemical potential energy being converted to kinetic energy

Explanation:

The number of Atoms present in one mole of an element is equal to Avogadro Number. Which One Of the Following contains the greatest number of Atoms? (1)4g He (2)46g Na (3)0.40g Ca (4) 12g He​

Answers

Answer:

Thus, the element containing the greatest number of atoms is 12 g He. Thus, the correct option is (4) 12 g He. Note: The number of atoms of a compound is Avogadro's number for 1 mole of compound. The number 6.022×1023 is known as Avogadro's number.

Explanation:

(4)✔️ 12 g He

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iammallika

Answer:

120gram I think so this is the answer if the answer is correct plz mark me as brainliest.

14. Which of the following alkanols on oxidation is most likely to yield the
compound below?
CHICHICOOON
.CO
(A) Butanol (B) Propan-2-ol(2-methylbutan-1-ol (D) 2-methylpropan-1-
ol (E) 2-methylpropan-2-ol.

Answers

Answer:

A

Explanation:

I think that is the ans but am not sure

Answer:

2-methylpropan-1-ol.

Explanation:

[tex]{ \tt{CH _{3}CH(CH _{3})CH _{2}OH}}[/tex]

Other Questions
Prepare the Statement of Retained Earnings from the Adjusted Trial Balance and Income Statement. Within each section of the statement, SMART TOUCH LEARNING Adjusted Trial Balance December 31, 2016 Account Title Debit Credit Cash 19500Accounts recievable 10800 Office Supplies 200 Prepaid Rent 13,000 Furniture 22,800 Accumulated Depreciation--Furniture 7800Accounts Payable 2600Salaries Payable 600Interest Payable 300 Unearned Revenue 6,500 Notes Payable 9,100 Common Stock 12,700 Retained Earnings 13,000 Dividends 33,100 Service Revenue 59,100 Depreciation Expense-Furniture 2600Interest Expense 300Rent Expense 3900Salaries Expense 4500 Supplies Expense 1000Total 111,700 111,700SMART TOUCH LEARNING Income Statement Month Ended December 31, 2016 Balance Revenue Service revenue 59100ExpensesDepreciation Expense-Furniture 2600Interest Expense 300Rent Expense 3900Salaries Expense 4500 Supplies Expense 1000Total expense 12300Net income 46800 A diagram shows a potato producing new tubers. Buds on the parent plant grow into stems that grow downwards called stolons. The end of each stolon develop in to new tuber.1) Give two pieces of evidence which show that this is an asexual method of reproduction.2) Explain why all the new tubers will be genetically identical. Olivia rides her scooter 3/4 mile in1/3 hour. How fast, in miles per hour,does she ride her scooter? Which of the following recursive formulas represents the same arithmetic sequence as the explicit formula an = 5+ (n-1)2? give a single word, not milk of cow has many uses. Current market trends and consumer preferences across the globe What is the quality of this data about HCV? 10.All of the following are examples of specialized cells except Which of the following lines best demonstrates the hidden identity element ofmedieval romance?O lines 61-62O lines 62-63O lines 53-54O lines 60-61 Which group experienced increaseddiscrimination after the bombing ofPearl Harbor?A. Irish-AmericansB. Japanese-AmericansC. Mexican-Americans Manaliksiktungkol Samoa manunugtog ng mag katutubong waiting sa pilipinas Gawain ito sa Iyong gawain 3 The company's bank reconciliation at June 30 included interest earned in the amount of $150. Complete the necessary journal entry by selecting the account names and dollar amounts from the drop-down menus. Carolina: Pobrecita! La fiesta____ (ser) muy divertida. Indicate type of chemical reactions for 2Mgl2+MN(SO3)2=2MgSO3+Mnl4 Explain whether the unit of work is a fundamental or derived unit Cuando se utiliza el punto y coma? can someone give me the answer for this? __ (5 + 4) = 2 * 5 + 2 * 4 Who did the Habeas Corpus Act protect? the theater sells two types of tickets: adult tickets for $6 and child tickets for 5$. last night, the theatre sold a total of 375 tickets for a total of $2153. How many adult tickets did the theatre sell On January 1, 2021, Nath-Langstrom Services, Inc., a computer software training firm, leased several computers under a two-year operating lease agreement from ComputerWorld Leasing, which routinely finances equipment for other firms at an annual interest rate of 6%. The contract calls for four rent payments of $14,000 each, payable semiannually on June 30 and December 31 each year. The computers were acquired by ComputerWorld at a cost of $98,000 and were expected to have a useful life of seven years with no residual value. Both firms record amortization and depreciation semiannually. (FV of $1, PV of $1, FVA of $1, PVA of $1, FVAD of $1 and PVAD of $1) (Use appropriate factor(s) from the tables provided.) Required: 1. Prepare appropriate journal entries recorded by Nath-Langstrom Services for the first year of the lease. 2. Prepare appropriate journal entries recorded by ComputerWorld Leasing for the first year of the lease.