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Gnoma [55]
3 years ago
12

1. The brilliant red colors seen in fireworks are due to the emission of light

Chemistry
1 answer:
valentina_108 [34]3 years ago
4 0

Answer:

what does c and m and n stand for?

Explanation:

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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
What are the units of density
Nataliya [291]

Answer:

Kg/ ml

Explanation:

Hope I help you

thank you

6 0
2 years ago
Sound waves are created when something is caused to______
neonofarm [45]

Answer: to vibrate

Explanation:

6 0
2 years ago
In a chemical equation, the arrow
muminat

In a chemical equation, the arrow  


A. can be read as "yields" or "makes."  

B. always points toward the products.  

C. separates the products and reactants.  

D. all of these


all of these options are right.

7 0
3 years ago
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An increase in blood co2 levels leads to __________.
tatiyna

Answer:

Respiratory Acidosis

Explanation:

4 0
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