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vitfil [10]
3 years ago
7

I can’t find the answer, can you help me please?

Chemistry
1 answer:
Tatiana [17]3 years ago
7 0

Answer: Warm ocean air then rises into the storm, then forming an area of low pressure underneath. :)

Explanation:

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2Li + H2SO4=Li2SO4 + H2 How many liters of hydrogen gas, H2 at STP can be produced from 3.0 moles of Li? The molar volume of a g
Gemiola [76]

Answer:

volume of H_2=33.6 litre

Explanation:

Firstly balance the given chemical equation,

2Li + H_2SO_4=Li_2SO_4 + H_2

From the given balance equation it is clearly that,

2 mole of Li gives  1 mole of H2 gas

2 mole Li⇔1 mole H_2

1 mole Li⇔0.5 mole H_2

3 mole Li⇔1.5 mole H_2

hence

3 mole of Li will give 1.5 mole H2 gas

therefore volume of gas produced from 3 mole Li at STP = 1.5\times22.4 \frac{L}{mol}

volume of H2=33.6 litre

7 0
3 years ago
A compound contains 39.0% potassium, 1.01% hydrogen, 12.0% carbon and 47.9% oxygen. Find its empirical formula
Ipatiy [6.2K]

Answer:

Empirical formula is  KHO₃C.

Explanation:

Given data:

Percentage of potassium = 39.0%

Percentage of hydrogen = 1.01%

Percentage of carbon = 12.0%

Percentage of oxygen = 47.9%

Empirical formula = ?

Solution:

Number of gram atoms of K = 39.0/ 39 = 1

Number of gram atoms of H = 1.01 / 1.01 = 1

Number of gram atoms of O = 47.9 / 16 = 3

Number of gram atoms of C = 12 / 12 = 1

Atomic ratio:

K               :            H                  :      O            :      C

1/1              :             1/1                :     3/1          ;       1/1

 1              :              1                  :        3          :        1

K : H : O :C =  1: 1 : 3 : 1

Empirical formula is  KHO₃C.

4 0
3 years ago
Elements K and L have 12 and 17 protons respectively. If k has 24 neutrons and L has 36, in a tabular form identify the number o
Delvig [45]

Answer: try watchong videos search up what you just say and wtch the videos it could help

Explanation:

5 0
3 years ago
Which of the following are building blocks of elements A. Atoms B. Protons C. Ions 2. Atoms are made up of A. Air,water,soil B.
Serjik [45]
1. A - atoms

2. B - protons electrons and neutrons
6 0
3 years ago
Which statement is true
ArbitrLikvidat [17]

Answer:

a

Explanation:

7 0
3 years ago
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