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cricket20 [7]
2 years ago
5

Total atoms of each element in5CaCl2+3Ca(ClO4)2+4Ca(OH)2​

Chemistry
1 answer:
Monica [59]2 years ago
4 0

Answer:

Element   Symbol   Atomic Mass   # of Atoms  Mass Percent

Chlorine              Cl       35.453                             2        29.670%

Calcium                Ca     40.078                      1         16.770%

Oxygen                 O   15.9994                             8            53.559%                              

Explanation:

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2 years ago
B. If the sand you ran across has a specific-heat capacity of 835 J/(kgºc),
Murrr4er [49]

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Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

Q=m\times c\times \Delta T

Q = Heat absorbed = ?

m = mass of sand = 2 kg

c = heat capacity = 835J/kg^0C

Initial temperature  = T_i = 40^0C

Final temperature= T_f  = 50^0C

Change in temperature ,\Delta T=T_f-T_i=(50-40)^0C=10^0C

Putting in the values, we get:

Q=2kg\times 835J/kg^0C\times 10^0C

Q=16700J

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4 0
2 years ago
Which statement best explains why ice cubes will melt in a glass of tea?
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Answer:

The ice cubes gain energy

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2 years ago
Isotopes of the same element have different _____. numbers of neutrons numbers of protons numbers of electrons atomic numbers
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Answer:

number of neutrons

Explanation:

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3 years ago
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