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mr_godi [17]
3 years ago
9

What is the energy required to go from a solid to a liquid called?

Chemistry
1 answer:
jek_recluse [69]3 years ago
3 0

Answer:

C. The thermal energy of a substance.

Explanation:

Hope it helps.

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Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation:
egoroff_w [7]

The grams  of  oxygen that are required  to produce 1  mole  of H₂O  is 16 g ( answer  B)

<u><em> calculation</em></u>

2 CH₄  + 2NH₃ +3 O₂ → 2HCN  + 6H₂O

step 1: use the mole ratio to find moles of O₂

from equation above the  mole ratio  of O₂: H₂O  is 3:6 therefore the moles of O₂  = 1 mole x3/6 =0.5 moles

step  2: find   mass of O₂

mass= moles x molar mass

from periodic table the molar mass  of O₂ = 16 x2= 32 g/mol

mass O₂ = 0.5 moles x 32 g/mol = 16 g (answer B)

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3 years ago
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Same things but with different numbers of neutrons in nuclei
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Vinvika [58]

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8 0
3 years ago
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Answer:

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2 years ago
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