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Zinaida [17]
4 years ago
5

When an animal runs along the ground by flexing some of its muscles, what causes its muscles to contract?

Biology
2 answers:
ira [324]4 years ago
8 0
Letter A for sure! Hope I helped.
dalvyx [7]4 years ago
7 0
Its D, i looked it up
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using the equation cs2+3o2=co2+2so2 what is the percent yield of so2 if the burning of 12.5g of cs2 produces 15.12 g of SO2
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<h3><u>Answer;</u></h3>

  = 71.96%

<h3><u>Explanation</u>;</h3>

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1 mole of CS2 reacts with 3 moles of Oxygen to produce 2 moles of SO2

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3 years ago
I am holding $2 in dimes and quarters. There are 11 total
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