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TEA [102]
2 years ago
9

Pick one please A. B. C. D.

Chemistry
2 answers:
Ahat [919]2 years ago
7 0

Answer:

B

Explanation:

just because it feels right and why not

guapka [62]2 years ago
3 0

Answer:

I would personally choose A but .....

Explanation:

flip a coin and the letter that came to your mind before you see it is the one to choose .

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Red and blue but im not sure abt the percentage.
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3 years ago
11. A 4.175 gram sample of a certain hydrate of copper (II) sulfate, CuSO,• xH,O, is heated until all
Wewaii [24]

The  formula of the hydrate = CuSO₄• 3H₂O

<h3>Further explanation</h3>

Given

4.175 grams sample CuSO₄• xH₂O

3.120 grams anhydrous compound CuSO₄

Required

The formula

Solution

mass of H₂O driven off :

= 4.175 - 3.12

= 1.055 g

MW CuSO₄ = 159.5 g/mol

MW H₂O = 18 g/mol

mol ratio of CuSO₄ : H₂O :

= 3.12/159.5 : 1.055/18

= 0.01956 : 0.05861

= 1 : 3

3 0
3 years ago
Which of the following sentences best describes what is shown in the above picture?
velikii [3]

Answer:

Cells of a multicellular organism

5 0
2 years ago
Read 2 more answers
Why is the reaction 2Mg + O2 + 2MgO a nonreversible reaction?
IRINA_888 [86]

Answer:

d

Explanation:

7 0
2 years ago
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A 10.50 gram sample of a compound is decomposed to yield 3.40 g Na, 2.37 g S, and 4.73 g O. What is the mass percentage of each
9966 [12]

Answer:

Na = 32.4% , % S = 22.6% and %O = 45.0%

Explanation:

% Na = 3.4/10.5. × 100%

= 32.4%

%S = 2.37/10.5 × 100%

= 22.6%

% O= 4.73/10.5 × 100%

= 45.0%xplanation:

6 0
2 years ago
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