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il63 [147K]
3 years ago
8

How much energy is generated from freezing 2.5 g water?

Chemistry
2 answers:
kolezko [41]3 years ago
7 0

Answer:

b

Explanation:

Gnom [1K]3 years ago
5 0

Answer:

if i remember correctly it's B

Explanation:

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In the following reaction, 2NaCl 2Na + Cl2 sodium and chlorine are products, salts, reactants, or ions?
avanturin [10]

The answer is: sodium and chlorine are products.

Balanced chemical reaction of sodium chloride decomposition:

2NaCl → 2Na + Cl₂.

Decomposition is reaction where one substance is broken down into two or more simpler substances.  

From one chemical compound (in this example sodium chloride) two new substances (sodium and chlorine) are produced.

6 0
3 years ago
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Nuclear changes differ from normal chemical changes in that all nuclear changes
kogti [31]

Answer:

(1) Nuclear reactions entail a transition in the nucleus of an atom, which normally results in the formation of a new substance. Chemical reactions, on the other hand, only involve electron rearrangement and do not involve nuclei modifications. (4) Nuclear reactions are unaffected by the element's chemical form.

Explanation:

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8 0
3 years ago
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PSYCHO15rus [73]

Answer:

C

Explanation:

If a substance is malleable, it can be hammered flat without breaking

5 0
4 years ago
If a object has a density of 0.55 g/mL , what is it density in cg/L
Tpy6a [65]

Answer : The density in cg/L is 0.55\times 10^5cg/L.

Solution :

Conversions :    1g/ml=10^{5}cg/L

Conversion of 'g' to 'cg' :    1g=100cg

Conversion of 'L' to 'ml' :    1L=1000ml

Given density = 0.55g/ml

After conversion,

Density = 0.55\times 10^5cg/L

Therefore, the density in cg/L is 0.55\times 10^5cg/L.


3 0
3 years ago
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The product side of a chemical reaction is shown.
Inga [223]

The number that represents the coefficient on the product side of the chemical reaction, -- > 7Ti_2(SO_4)_3 is 7.

<h3>Coefficients of chemical equations</h3>

In equations representing chemical reactions, the coefficient of each reactant or product of a reaction is the number that comes on the left-hand side just before the chemical formula.

The coefficient of each species in a chemical reaction is obtainable when the equation of the reaction is balanced.

For example, in the following equation: 2A + B = 3C + D

The coefficients of A, B, C, and D are 2, 1, 3, and 1 respectively.

Applying this to the product side of a chemical reaction;  -- > 7Ti_2(SO_4)_3

It means that the coefficient of the product is 7.

More on coefficients of chemical equations can be found here: brainly.com/question/28294176

#SPJ1

7 0
2 years ago
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