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Salsk061 [2.6K]
3 years ago
13

HURRY ANSWER NOW AND I GIVE BRAINLY!!! HURYYY

Chemistry
1 answer:
s344n2d4d5 [400]3 years ago
5 0
When the student left the jar outside, the molecules were moving around each other. Later, the molecules were moving away from each other.
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Explain the difference between a physical property and chemical property. Give examples of each.
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A physical property is what a substance is like; it's directly observable. On the other hand, a chemical property is how a substance behaves; its reactivity.

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Rocks are classified based on
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3 years ago
Macromolecules aren't sticking with me. I need to memorize the basic and complex sugars.
givi [52]

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3 0
2 years ago
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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

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

6 0
3 years ago
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