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Mnenie [13.5K]
3 years ago
10

I need help on these 2 questions plzz can someone help

Chemistry
2 answers:
fiasKO [112]3 years ago
6 0

Answer:

plant meat............

Ivan3 years ago
3 0

Answer:

plants meat

Explanation:

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?Al + ?H2SO4 → ?Al2(SO4)3 +3H2
AfilCa [17]

The answer is: 27 grams of aluminium.

Balanced chemical reaction: 2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂.

n(H₂) = 1.5 mol; amount of hydrogen.

Form chemical reaction: n(Al) : n(H₂) = 2 : 3.

n(Al) = 2 · 1.5 mol ÷ 3.

n(Al) = 1.0 mol; amount of aluminium.

m(Al) = n(Al) · M(Al).

m(Al) = 1 mol · 27 g/mol.

m(Al) = 27 g; mass of aluminium.

5 0
3 years ago
What is the molarity of a KF(aq) solution containing 3.0 mol of KF in 2.00L of solution?
sergeinik [125]

Answer : The molarity of KF in the solution is 1.5 M.

Explanation : Given,

Moles of KF = 3.0 mol

Volume of solution = 2.00 L

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

Formula used :

\text{Molarity}=\frac{\text{Moles of }KF}{\text{Volume of solution (in L)}}

Now put all the given values in this formula, we get:

\text{Molarity}=\frac{3.0mol}{2.00L}=1.5mole/L=1.5M

Therefore, the molarity of KF in the solution is 1.5 M.

4 0
3 years ago
1. Three different observers measure the melting point of a substance and agree on the
Naddik [55]

d. precise but not accurte

7 0
3 years ago
If you have a cup of water at 35 degrees Celsius, and a bath tub of water at 35 degrees Celsius which will melt the most ice and
ZanzabumX [31]
The bathtub of water would melt the most ice because it has a larger area
8 0
2 years ago
Select the correct answer. Why does every chemical reaction require a certain amount of activation energy? A. Energy is released
horsena [70]

Answer:

<u>The answer is</u>: <em>B. </em><em>Energy lost to the environment during the reaction must be replaced.</em>

Explanation:

5 0
3 years ago
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