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Aliun [14]
3 years ago
7

Atoms of Ca and S would be expected to react in a ratio of A) 1:1 B) 1:2 C)2:1 D)3:1

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

Answer:

Option A = 1:1

Explanation:

The atoms of calcium and sulphur when react their ration is 1:1. The charge on calcium is +2 and on sulphur is -2.

Ca⁺²S⁻²

The +2 and -2 charges are cancel out and overall charge will be zero.

CaS

so their atomic ratio will be 1:1

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tensa zangetsu [6.8K]

Answer:

Argon is a noble gas

Hope this helps

5 0
2 years ago
The substances below are listed by increasing specific heat capacity value. Starting at 30 Celsius, they absorb 100 kJ of therma
Georgia [21]

Answer:

Silver.

Explanation:

To obtain the right answer to question, let us calculate the change in temperature for each substance assuming they all have the same mass as 100g.

This is illustrated below:

1. For Siver:

Mass (M) = 100g

Specific heat capacity (C) = 0.239J/g°C

Heat (Q) = 100 kJ = 100000J

Change in temperature (ΔT)

Q = MCΔT

ΔT = Q/MC

ΔT = 100000/(100 x 0.239)

ΔT = 4184°C

2. For Aluminium:

Mass (M) = 100g

Specific heat capacity (C) = 0.921J/g°C

Heat (Q) = 100 kJ = 100000J

Change in temperature (ΔT)

Q = MCΔT

ΔT = Q/MC

ΔT = 100000/(100 x 0.921)

ΔT = 1086°C

3. For Lithium:

Mass (M) = 100g

Specific heat capacity (C) = 3.56J/g°C

Heat (Q) = 100 kJ = 100000J

Change in temperature (ΔT)

Q = MCΔT

ΔT = Q/MC

ΔT = 100000/(100 x 3.56 )

ΔT = 281°C

4. For water:

Mass (M) = 100g

Specific heat capacity (C) = 4.184J/g°C

Heat (Q) = 100 kJ = 100000J

Change in temperature (ΔT)

Q = MCΔT

ΔT = Q/MC

ΔT = 100000/(100 x 4.184)

ΔT = 239°C

Summary

Temperature change of each substance is given below

1. Silver => 4184°C

2. Aluminum => 1086°C

3. Lithium => 281°C

4. Water => 239°C

From the calculations made above, Silver has the highest rise in temperature.

4 0
3 years ago
Cuales son las fórmulas de la velocidad
AnnZ [28]

Answer:

s = d÷ t

Explanation:

Where s means speed, d means distance and t means time

7 0
3 years ago
Discuss whether glucose is a mixture of water and carbon dioxide or is it a new compound?
Aleksandr [31]

Answer:

SEE BELOW

Explanation:

Glucose (C6H12O6) is an organic compound composed of the elements carbon, hydrogen and oxygen.

8 0
2 years ago
How to turn form moles to grams​
miss Akunina [59]
Turning things to gram so need to convert to the metric system
5 0
3 years ago
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