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Troyanec [42]
3 years ago
12

Edge2020 Need Help

Chemistry
2 answers:
Sophie [7]3 years ago
5 0

Answer: B) The fireworks give off heat

pantera1 [17]3 years ago
4 0
The answer is, the fireworks give off heat. which is exothermic
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Answer:

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The molar mass of silver (Ag) is 107.87 g/mol.
Setler79 [48]

Answer:

3.53 g

Explanation:

To convert from atoms to moles, you need to know Avogadro's number.  Avogadro's number (6.022 × 10²³) is how many atoms there are in one mole of a substance.  Use this to convert.

(1.97 × 10²² atoms) ÷ (6.022 × 10²³ atoms/mol) = 0.0327 mol

Now that you have moles, use the molar mass to convert to grams.

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4 0
3 years ago
How many grams of water can be formed when 80 grams of sodium hydroxide (NaOH) reacts with an excess of sulfuric acid, H2SO4, in
podryga [215]

Answer:

36g of H2O.

Explanation:

We'll begin by writing the balanced equation for the reaction:

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Next, we shall determine the mass of NaOH that reacted and the mass of H2O produced from the balanced equation. This is illustrated below:

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Molar mass of H2O = (2x1) + 16 = 18g/mol

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From the balanced equation above, we can see evidently that:

80g of NaOH reacted to produce 36g of H2O.

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Why are fixed resistors’ values indicated by color bands rather than printing the numeric value on their exterior?
gladu [14]
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What is the world's most common acid<br> and also the world's most common base?
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4 0
3 years ago
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