3 years ago

What kind of questions can science answer

Chemistry

1 answer:

IrinaK [193]3 years ago

5 0

Answer:

hypothesis

Explanation:

a question that can be answered wity a hypothesis is a question a scientist can answer

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Is Squeezing oranges to make orange juice a chemical or physical change?

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The order of elements in the periodic table is based on the atomic number.

Gnoma [55]

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Hope this helps :).

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9. Carbon-14 has a half-life of 5,730 years. How many years have passed after 3<br> half-lives?

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Explanation:

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3 years ago

Sodium chloride can be produced by the reaction of sodium metal with chlorine gas. Which is the limiting reactant if 6.70 moles

Alecsey [184]

Answer:

Chlorine gas.

Explanation:

Hello!

In this case, the undergoing chemical reaction is:

$2Na+Cl_2\rightarrow 2NaCl$

Thus, given the moles of reacting both sodium and chlorine, we compute the moles of sodium chloride yielded by each reactant by considering the 2:2 and 1:2 mole ratios:

$n_{NaCl}^{by\ Na}=6.70molNa*\frac{2molNaCl}{2molNa}=6.70molNaCl \\\\n_{NaCl}^{by\ Cl_2}=3.20molCl_2*\frac{2molNaCl}{1molCl_2}=6.40molNaCl$

Thus, since chlorine yields less moles of sodium chloride, we infer it is the limiting reactant.

Best regards!

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