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dusya [7]
3 years ago
5

The amount of energy in the bonds of the reactants plus any energy absorbed equals the amount of energy in the bonds of the prod

ucts plus any energy _____.
Chemistry
2 answers:
Paha777 [63]3 years ago
7 0
The amount of ................................. in the bonds of the products plus any energy GIVEN OFF WHEN THE PRODUCTS ARE FORMED.
During chemical reaction, energy are needed to break the chemical bonds which hold the molecules of the reactants together and energy is always given off when product are formed. At the end of the reaction, the quantities of these energies must be equal to show that energy is conserved.
allochka39001 [22]3 years ago
4 0
The answer to this question is Released
This is the law of energy conservation that being done in order to reduce the total consumption of energy by using less energy.
In most cases, the conservation requires either by using the intial energy more efficiently or by reducing the total result of the energy formed.
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Describe the method to make pure, dry crystals of magnesium sulfate from a metal oxide and dilute acid.
emmasim [6.3K]

Answer:

H2SO4(aq) + MgO(s) → H2O(l) + MgSO4(aq)

Explanation:

We must recall that the oxides of metals are bases. These metal oxides can react with dilute acids to yield salt and water.

Bearing that in mind, we want to obtain magnesium sulfate from a metal oxide and dilute acid.

In this case we need magnesium oxide and dilute sulphuric acid. The reaction occurs as follows;

H2SO4(aq) + MgO(s) → H2O(l) + MgSO4(aq)

6 0
3 years ago
What explanation accounts for the observation that the mass of the products in reaction #1 (open system) were not equal?
Anna007 [38]

Answer:

The law of conservation of mass states that matter can not be created or destroyed in a chemical reaction.

Explanation:

5 0
3 years ago
Which of the following is the correct name for Cr203?
algol13
It’s B. Chromium(III) oxide
4 0
3 years ago
Read 2 more answers
Andi performs the calculation that is shown below.
rodikova [14]

Answer: 3.59

Explanation:

(2.06)(1.743)(1.00)

2.06 × 1.743 × 1.00

= 3.59058

Two of the multiplied digits are represented in 3 significant figures. Therefore, for correct representation, the result of the product should be written to three significant figures.

3.59058 to 3 significant figures:

First three digits = 3.59

Fourth digit '0' is less than 5, and thus rounded to 0 with other succeeding digits

Therefore, (2.06)(1.743)(1.00) to 3 significant figures equals :

3.59

3 0
3 years ago
In order to determine if 2 atoms are cooper what must be the same for each
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-number of electrons
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4 0
3 years ago
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