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Step2247 [10]
3 years ago
10

Which of the following statements correctly describe a photon? Select all that apply.

Chemistry
1 answer:
svetlana [45]3 years ago
6 0

Answer:

I believe it is 3 and 4. I really hope it is but i am positive :)

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Write the balanced equation for the reaction that occurs when methanol, CHEOH () is burned in air. What is the coefficient of ox
GaryK [48]

Answer:

The balanced equation for methanol when is burned in the air, is

CH3OH + O2 ----->  3/2 CO2  +2 H2O and as you see coefficient of oxygen is 3/2

Explanation:

When you always burn something you are doing combustion. The reactives are your compound + O2, and as products you have CO2 and H2O

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3 years ago
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What is the name of the atom that has 11 protons, 11 electrons and 12 neutrons?
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➷ This atom is Sodium (Na). Sodium is located in group 1 of the periodic table.

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mylen [45]

B

greenhouse effect describes Earth's atmosphere trap heat

3 0
2 years ago
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What best describes the transition from gas to liquid
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It's condensation in which gas particles have a higher kinetic energy..

8 0
2 years ago
Student prepares a 0.207 g sample of the nonvolatile solute caryophyllene by dissolving the substance in 1.00 g of chloroform (K
Sergeeva-Olga [200]

Answer: 204.2 g/mol

Explanation:

Elevation in boiling point is given by:

\Delta T_b=k_b\times m

\Delta T_b =  Elevation in boiling point =  3.68^0C/m

k_b = boiling point constant  = 3.63^0C/m

m = molality

Molality=\frac{n\times 1000}{W_s}

where,

n = moles of solute = \text {given mass}{\text {molar mass}}=\frac{0.207}{M}

 W_s = weight of solvent in g  = 1g

Molality =\frac{0.207\times 1000}{M\times 1g}

Putting in the values we get,

3.68=3.63\times \frac{0.207\times 1000}{M\times 1g}

M=204.2g/mol

The molar mass of caryophyllene is 204.2 g/mol.

5 0
3 years ago
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