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murzikaleks [220]
3 years ago
10

Difference between calcium sulfide and calcium sulfate.

Chemistry
1 answer:
const2013 [10]3 years ago
5 0

Answer: Calcium sulfide is a chemical compound having formula CaS. While  Calcium sulfide is inorganic compound g fomlaCaSO4.

Explanation:

calcium sulfide is use in  preparation of  hydrogen sulfide, luminous pain and as a depilatory in cosmetics while  calcium sulfate is used as desiccant. calcium sulfides is  white material crystallizes in cubes like rock salt while calcium sulfate has three different crystalized forms known as hemihydrate (CaSO4⋅12H2O) , anhydrate (CaSO4) and as  gypsum (CaSO4⋅2H2O). hope this explanation will be helpful for you

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olga2289 [7]

Answer:

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Where are skeletal muscles used? Are they voluntary?
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I need an answer now please asap and you will me marked brainiest please it's missing I need it now.
kogti [31]

Answer:

Molecular Mass:

1. 40g per mole

2. 19g per mole

3. 64g per mole

4. 32 g per mole

5. 17g per mole

6. 59.5g per mole

7.58.5 g per mole

8.220g per mole

9. 78g per mole

10. 200g per mole

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Molecular Mass = Number of atom x atomic mass of an element

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8 0
3 years ago
A 51.9 g sample of quartz is put into a calorimeter (see sketch at right) that contains 300.0 g of water. The quartz sample star
Trava [24]

Answer:

The specific heat capacity of quartz is 0.71 J/g°C.

Explanation:

Heat lost by quartz will be equal to heat gained by the water

-Q_1=Q_2

Mass of quartz= m_1=51.9 g

Specific heat capacity of quartz= c_1=?

Initial temperature of the quartz= T_1=97.8^oC

Final temperature = T_2=T  = 19.3^oC

Q_1=m_1c_1\times (T-T_1)

Mass of water=m_2=300.0 g

Specific heat capacity of water= c_2=4.18 J/g^oC

Initial temperature of the water = T_3=17.0 ^oC

Final temperature of water = T_2=T=19.3^oC

Q_2=m_2c_2\times (T-T_3)

-Q_1=Q_2

-(m_1c_1\times (T-T_1))=m_2c_2\times (T-T_3)

On substituting all values:

-(51.9 gc_1\times (19.3^oC-97.8^oC))=300.0 g\times 4.18 J/g^oC\times (19.3^oC-170^oC)

we get:

c_1 =0.7079 J/g^oC\approx 0.71 J/g^oC

The specific heat capacity of quartz is 0.71 J/g°C.

5 0
3 years ago
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