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baherus [9]
3 years ago
8

How do I answer this???

Chemistry
1 answer:
Mumz [18]3 years ago
8 0
Will you have to show me what you're talking
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The reaction between solid aluminum and liquid bromine is exothermic. This reaction creates
n200080 [17]

Answer:

correct answer is d)

Explanation:

This answer demonstrates law of conservation of mass because the mass of the products is equal to the mass of reactants with the help of the coefficients which is the process known as balancing. This answer also includes the correct formulas, as Br is a gas so it MUST be written as Br2. hope this helps:)

7 0
3 years ago
A 1.59 mol sample of Kr has a volume of 641 mL. How many moles of Kr are in a 4.41 L sample at the same temperature and pressure
Marina86 [1]

Answer:

The correct answer is 10.939 mol ≅ 10.94 mol

Explanation:

According to Avogadro's gases law, the number of moles of an ideal gas (n) at constant pressure and temperature, is directly proportional to the volume (V).

For the initial gas (1), we have:

n₁= 1.59 mol

V₁= 641 mL= 0.641 L

For the final gas (2), we have:

V₂: 4.41 L

The relation between 1 and 2 is given by:

n₁/V₁ = n₂/V₂

We calculate n₂ as follows:

n₂= (n₁/V₁) x V₂ = (1.59 mol/0.641 L) x 4.41 L = 10.939 mol ≅ 10.94 mol

5 0
3 years ago
Robert Boyle and Robert Hooke worked together and discovered some important physics concepts. Their work lead to the formation o
Semenov [28]

Boyle's law states describes the relationship between volume and pressure for a given mass of gas and it aided our understanding of breathing.

Boyle's law states that, the volume of a given mass of gas is inversely related to its pressure at as long as the temperature is constant .

This means that, as the volume of a given mass of gas increases, its pressure decreases.

As the lungs expand during breathing, the volume of air in them increases as the pressure of air inside the lungs decreases.

Learn more: brainly.com/question/1437490

7 0
2 years ago
Read 2 more answers
How many grams of magnesium oxide remain after 18.50 g of magnesium oxide reacts with 30.3 g hydrochloric acid to produce magnes
mestny [16]
I believe that this is right

5 0
3 years ago
19) What is the molarity of a KOH solution if 200 ml of the solution contains 0.6 moles KOH?
zloy xaker [14]

Answer: 3M

Explanation: Molarity : It is defined as the number of moles of solute present in one liter of solution.

Formula used :

Molarity=\frac{n\times 1000}{V_s}

where,

n = moles of solute KOH = 0.6 moles

V_s = volume of solution in ml= 200 ml

Now put all the given values in the formula of molarity, we get

Molarity=\frac{0.6moles\times 1000}{200ml}=3mole/L

Therefore, the molarity of solution will be 3M.

8 0
3 years ago
Read 2 more answers
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