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alexira [117]
3 years ago
10

which statement is true about the reaction shown by this chemical equation HCl + NaOH ------> NaCl + H2O

Chemistry
2 answers:
bixtya [17]3 years ago
7 0

Answer: It is endothermic

Explanation:

NNADVOKAT [17]3 years ago
3 0

Answer:

A. It is exothermic

Explanation:

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VMariaS [17]

Answer:

c

Explanation:

5 0
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Farmer Jones has a problem with his field. Acid rain has made it too acidic. What type of substance should he add to neutralise
Crank

Answer:

calcium oxide to nutriolise the acidity of the soil

7 0
3 years ago
If 0.00872 mol neon gas at a particular temperature and pressure occupies a volume of 211 mL, what volume would 0.00701 mol neon
GuDViN [60]

Answer:

0.00701 moles of neon gas will occupy 170 ml of volume under the same conditions.

Explanation:

The relationship of number of moles and volume at constant temperature and pressure was given by Avogadro's law. This law states that volume is directly proportional to number of moles at constant temperature and pressure.

The equation used to calculate number of moles is given by:

\frac{V_1}{n_1}=\frac{V_2}{n_2}

where,

V_1\text{ and }n_1 are the initial volume and number of moles

V_2\text{ and }n_2 are the final volume and number of moles

We are given:

V_1=211 mL\\n_1=0.00872 mol\\V_2=?\\n_2=0.00701 mol

Putting values in above equation, we get:

\frac{211 mL}{0.00872 mol}=\frac{V_2}{0.00701}

V_2=\frac{211 mL\tomes 0.00701 mol}{0.00872 mol}=169.62 mL\approx 170 mL

0.00701 moles of neon gas will occupy 170 ml of volume under the same conditions.

3 0
3 years ago
During science lab, Jacob mixes together sodium hydroxide (NaOH) and hydrochloric acid (HCl). The two chemicals react to form so
Svet_ta [14]
The answer is B. Because reactions are what goes in. Products are what comes out
3 0
3 years ago
Read 2 more answers
What is the molality of an aqueous KCl solution with a mole fraction of KCl, XKCl = 0.175? (The molar mass of KCl = 74.55 g/mol
NARA [144]

Answer:

The molality of the KCl solution is 11.8 molal

Explanation:

Step 1: Data given

Mol fracrion KCl = 0.175

Molar mass KCl = 74.55 g/mol

Molar mass H2O = 18.02 g/mol

Step 2: Calculate mol fraction H2O

mol fraction H2O = 1 - 0.175 = 0.825

Step 3: Calulate mass of H2O

Suppose the total moles = 1.0 mol

Mass H2O = moles H2O * molar mass

Mass H2O = 0.825 * 18.02 g/mol

Mass H2O = 14.87 grams = 0.01487 kg

Step 4: Calculate molality

Molality KCl = 0.175 / 0.01487 kg

Molality KCl = 11.8 molal

The molality of the KCl solution is 11.8 molal

5 0
3 years ago
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