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aliya0001 [1]
3 years ago
11

Which is a diatomic molecule? A)Ar B)CO C)CO2 D)NaCl

Chemistry
2 answers:
Molodets [167]3 years ago
8 0

Answer:

C. CO2

Explanation:

LUCKY_DIMON [66]3 years ago
5 0

Answer:

C. Co2

Explanation:

Oxygen is a diatomic molecule because 2 atoms are conisistebof a normal molecule.

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Why does sublimation feel cold?
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The combined gas law sets up a relationship between which of the following?
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7 0
3 years ago
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Hydrolamine ,NH2OH , is a reducing agent found in some film developing solutions. How many hydrogen atoms are in 1.80moles of hy
kolezko [41]

Answer:

number of hydrogen atom in 1.8 mole of NH2OH = 9.8\times 10^{22}

Explanation:

percentage of hydrogen in NH2OH = mass of hydrogen / mass of whole molecule

                                                             =\frac{3\times 1}{14+3+16}\times 100

                                                             = 9.09 percentage

therefore number of moles in 1.8 moles of hydroxy amine = \frac{9.09}{100}\times 1.8

                                                                = .16 moles of hydrogen

number of hydrogen atom = (number of moles )×(avagadro number)

                                              = 9.8\times 10^{22} atoms of hydrogen

3 0
3 years ago
Lighting a match is an example of what kind of energy conversion?
Alika [10]

Answer:

Mechanical Energy to Thermal Energy

When you strike a match, it moves through the air until it rubs against a surface. The rubbing produces the heat required to light the match. This is a transformation from mechanical energy to thermal (heat) energy.

Explanation:

4 0
2 years ago
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