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SOVA2 [1]
3 years ago
12

Food can spoil very quickly. Which methods are used to minimize the reactions that allow bacteria and fungi to grow?

Chemistry
2 answers:
dem82 [27]3 years ago
7 0

Answer:  preservatives and low temperature

Explanation:

Oduvanchick [21]3 years ago
3 0

Answer:

preservatives and low temperature

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What is the molar ratio between carbon dioxide to water?<br> 2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
jok3333 [9.3K]

Answer:

8:10

Explanation:

The coefficients of a balanced chemical equation give us the mole ratios. The coefficient of carbon dioxide here is 8 and water is 10.

6 0
2 years ago
0.50 g of hydrogen chloride (HCl) is dissolved in water to make 4.0 L of solution. What is the pH of the resulting hydrochloric
svlad2 [7]

Explanation:

Given the mass of HCl is ---- 0.50 g

The volume of solution is --- 4.0 L

To determine the pH of the resulting solution, follow the below-shown procedure:

1. Calculate the number of moles of HCl given by using the formula:

number of moles of a substance=\frac{given mass of the substance}{its molecular mass}

2. Calculate the molarity of HCl.

3. Calculate pH of the solution using the formula:

pH=-log[H^+]

Since HCl is a strong acid, it undergoes complete ionization when dissolved in water.

HCl(aq)->H^+(aq)+Cl^-(aq)

Thus, [HCl]=[H^+]

Calculation:

1. Number of moles of HCl given:

number of moles of a substance=\frac{given mass of the substance}{its molecular mass}\\=0.50g/36.5g/mol\\=0.0137mol

2. Concentration of HCl:

Molarity of HCl=\frac{number of moles of HCl}{its molar mass}\\=\frac{0.0137 mol}{4.0 L} \\= 0.003425 M

3. pH of the solution:

pH=-log[H^+]\\=-log(0.003425)\\=2.47

Hence, pH of the given solution is 2.47.

3 0
3 years ago
Which of these is a chemical property?
Katyanochek1 [597]
Yes, refer to the previous answer.
6 0
3 years ago
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exis [7]
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6 0
3 years ago
Matter is more likely to exist in the ________ state as the temperature is lowered.
katovenus [111]
As the temperature is lowered matter is more likely to exist in the solid state
7 0
3 years ago
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