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tatyana61 [14]
3 years ago
11

(image attached)

Chemistry
2 answers:
Naily [24]3 years ago
8 0

Answer:

D) He did not multiply the chlorine and oxygen atoms by the coefficient 4.

Explanation:

The coefficient 4 at the beginning of the chemical formula indicates that there are four Ca(ClO3)2 molecules. Think of this as Ca(ClO3)2 × 4. This means that he had to multiply the number of atoms for each element by 4 as well, so he should've ended up with 4 total calcium atoms (which is correct), 8 total chlorine atoms, and and 24 total oxygen atoms. He did not get all these answers because he didn't multiply the chlorine and oxygen atoms by the coefficient 4.

NARA [144]3 years ago
4 0

Answer:

D) He did not multiply the chlorine and oxygen atoms by the coefficient 4.

Explanation:

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8. The standard enthalpy of formation of RbF(s) is –557.7kJ/mol and the standard enthalpy of formation of RbF(aq, 1 m) is –583.8
garri49 [273]

Explanation:

Given

The enthalpy of formation of RbF (s) is –557.7kJ/mol

The standard enthalpy of formation of RbF (aq, 1 m) is –583.8 kJ/mol

The enthalpy of solution of RbF = Enthalpy of RbF (aq) - Enthalpy of formation of RbF (s)

= -583.8 - (-557.7)  kJ/mol

= -26.1 kJ/mol

The enthalpy is negative which means that the temperature will rise when RbF is dissolved.

3 0
3 years ago
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Eddi Din [679]

Answer:

Its One

Explanation:

hope it helps!

mark me brainliest :))

8 0
3 years ago
PLEASE HELP I WILL GIVE YOU BRAINLIEST PLEASE
g100num [7]

Answer:

the answer is the second choice actual force

6 0
2 years ago
Which factor impacts the possible number of ways in which different atoms can be put together?
kumpel [21]
D is just straight up false, if I were to take a stab at it, the only one that’s seems logical to me B. “The ability of atoms to combine in unlimited ways”
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What is the tendency of an atom to attract a pair of electrons that will bond?
velikii [3]
The answer is Electronegativity
5 0
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