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MaRussiya [10]
3 years ago
9

Magnesium carbonate decomposition on heating to form magnesium oxide and carbon dioxide. how many grams of magnesium oxide will

be formed if 20 grams of magnesium

Chemistry
1 answer:
KIM [24]3 years ago
3 0
This is how you would do it. set up the rxn. balance, in this case you didn't need to. make a grid and cancel out units.

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daser333 [38]
<span>8.278 g/mL The definition of density is mass per volume. So what you need to do is divide the known mass by the known volume. So 1.663 g / 0.2009 mL = 8.27775 g/mL But you also have to keep track of significant figures. Since both 1.663 and 0.2009 have 4 significant figures each, you need to round the result to 4 significant figures. So 8.27775 g/mL = 8.278 g/mL</span>
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Gwar [14]
I hope you understand my working:
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(Giving brainliest if u help mee)
Degger [83]
I think it would be B
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Is the dissolution of borax in water a temperature dependent reaction or is it spontaneous at all temperatures at which water is
enot [183]

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<h3>What is borax?</h3>

Borax is the hydrate salt of boric acid. It is white and widely used in cleaning and in laundry  detergent.

Borax is a salt that will dissolve in water at almost any temperature, with the exception of steam and ice.

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Thus, the dissolution of borax in water is a temperature dependent reaction.

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