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astraxan [27]
3 years ago
8

I need help plz!!!!!! (40 points)

Chemistry
2 answers:
LuckyWell [14K]3 years ago
8 0
Northern hemisphere
expeople1 [14]3 years ago
6 0

Answer:

the correct answer is 2. Northern Hemisphere

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How do you think engineers use the specific heat of various substances when they are designing new products?
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Answer:

engineers use knowledge of heat of reaction to predict how much energy will be produced in a chemical system, which is important for keeping the reactor safe and efficient. Beyond chemical reactions, heat is exchanged for physical reactions, too.

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In an experiment you are asked to react hydrochloric acid with sodium hydroxide. When measuring the volume of the reactants, whi
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Which describes Ernest Rutherford’s experiment?
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4 years ago
If 24.1 g of sodium hydroxide react with 22.0 g of hydrochloric acid to form 35.3g
disa [49]

Answer:

10.85 g of H2O.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

NaOH + HCl —> NaCl + H2O

Next, we shall determine the mass of NaOH that reacted and the mass of H2O produced from the balanced equation.

These can be obtained as illustrated below:

Molar mass of NaOH = 23 + 16 + 1 = 40 g/mol

Mass of NaOH from the balanced equation = 1 × 40 = 40 g

Molar mass of H2O = (2×1) + 16 = 2 + 16 = 18 g/mol

Mass of H2O from the balanced equation = 1 × 18 = 18 g

Summary:

From the balanced equation above,

40 g of NaOH reacted to produce 18 g of H2O.

Finally, we shall determine the mass of water, H2O produced from the reaction as follow:

From the balanced equation above,

40 g of NaOH reacted to produce 18 g of H2O.

Therefore, 24.1 g of NaOH will react to produce = (24.1 × 18)/40 = 10.85 g of H2O.

Therefore, 10.85 g of H2O were produced from the reaction.

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4 years ago
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