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Vladimir79 [104]
3 years ago
10

What is the amount of heat released when 25g of water cools 12.5 degrees C ?

Chemistry
1 answer:
Over [174]3 years ago
4 0
Water can't cool at a single temperature. It must start at a higher temperature, and drop to a lower temperature in order to cool. Unless we know the other temperature, there is no way to calculate the amount of thermal energy released.
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The missing components in the table to the right are indicated with orange letters. Complete table by filling in the correspondi
V125BC [204]

Answer :

A = In

B = 27

C = 73

D = 49

E = 56

F = 54

G = 66

H = 108

I = 32

Explanation :

Atomic number is defined as the number of protons or number of electrons.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and number of neutrons.

Number of neutrons = Mass number - Number of protons

Number of electrons = Number of protons - charge

Element        Number of       Number of        Number of        Atomic

symbol          protons            electrons          neutrons           mass

  Co                  27                     27                      31                    58

  In                    49                     49                     66                   115

  Ta                   73                     73                     108                  181

  Ba²⁺                56                    54                      81                   137

  S²⁻                  16                      18                      16                    32

4 0
3 years ago
In which phase of a substance do its particles have the greatest average kinetic energy?
ycow [4]

Answer:

Gas

Explanation:

Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy. The temperature of a substance is a measure of the average kinetic energy of the particles.

BRAINLIEST :)()()(

6 0
3 years ago
Determine the ions of ammonium, in 870.4x10-23 grams of (NH4)3PO4. Round the results to the tenths.
babunello [35]

Answer: if your trying to say what 4x10-23 is the answer is 17

and if ur also trying to say whats 870.4x10-23 the answer is 8681 have a nice day!

Explanation:

also and what is (NH4)3PO4 if its a file code or link your not allowed to post that

6 0
2 years ago
A nickel is placed in a cup of boiling water. Predict whether a solution will form.
Volgvan
I think the copper could melt to cup and the water would smell like rust
6 0
3 years ago
Enter the net ionic equation representing aqueous acetic acid neutralized by aqueous barium hydroxide.
IrinaK [193]

Answer:

The answer to your question is below

Explanation:

Data

Aqueous acetic acid

Aqueous barium hydroxide

Formula

Acetic acid    CH₃CH₂COOH

Barium hydroxide   Ba(OH)₂

Neutralization reaction

        CH₃CH₂COOH    +    Ba(OH)₂      ⇒  Ba( CH₃CH₂COO)₂ + H₂O

                                                                    Barium acetate + H₂O

Barium acetate =  Ba( CH₃CH₂COO)₂ = Ba(C₃H₅O₂)₂

6 0
2 years ago
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