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Alex_Xolod [135]
3 years ago
14

Decide if the following is a good, better or poor observation.

Chemistry
1 answer:
Anna71 [15]3 years ago
8 0
The answer to this question I think would be 2: Better
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In a chemical equation, the symbol that means "dissolved in water" is _____. (s) (l) (aq) (g)
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In a chemical equation, the symbol that means “dissolved in water” is (aq).
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2 years ago
How many moles of sodium carbonate na2co3 are contained by 57.3 g of sodium carbonate
yan [13]
There are 0.54 moles of sodium carbonate are contained by  57.3 grams of sodium carbonate.

we can calculate number of moles in a compound by dividing number of grams of compound by the molar mass of the compound.
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Some chemical reactions releases energy other store energy what important chemical reaction storage energy?
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Answer:

A chemical reaction that stores energy is called an endothermic reaction. More energy might be released as products form than the energy needed to break the reactants apart. This chemical reaction will release energy. In other words, it will be an exothermic reaction.

Explanation:

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3 years ago
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Gaseous methane ch4 will react with gaseous oxygen o2 to produce gaseous carbon dioxide co2 and gaseous water h2o . suppose 1.44
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The balanced equation for the above reaction is;
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3 years ago
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