2 years ago

Look around and write down two or three examples of matter and energy that you observe.

1 answer:

Citrus2011 [14]2 years ago

5 0

Everything is made of matter, so anything you see will do for the matter portion. If you have a water bottle sitting on a desk, that has potential energy, and if you have a dog thats running and such, it has kinetic energy. I hope this helps!

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Part APart complete A sample of sodium reacts completely with 0.568 kg of chlorine, forming 936 g of sodium chloride. What mass

yan [13]

Answer: 368 grams of sodium reacted.

Explanation:

The balanced reaction is :

$2Na(s)+Cl_2(g)\rightarrow 2NaCl(s)$

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$\text{Moles of chlorine}=\frac{0.568\times 1000g}{71g/mol}=8moles$

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Mass of $Na=moles\times {\text {Molar mass}}=16moles\times 23g/mol=368g$

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