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OverLord2011 [107]
3 years ago
8

This chemical equation represents a chemical reaction. 2HNO3+Na2SO3-2NaNO3+H2O+SO2

Chemistry
2 answers:
muminat3 years ago
6 0

Answer:

D. Na₂SO₃

Explanation:

The given equation is:

         2HNO₃ + Na₂SO₃  → 2NaNO₃  + H₂O + SO₂

The reaction equation is shown above. In chemical reactions, the left hand side is made up of the reactants and the right hand side is made up of the products.

 The reactants in the equation are:

     HNO₃ and Na₂SO₃

Tju [1.3M]3 years ago
3 0

Answer:

D

Explanation:

I have the same test

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3 years ago
What do we call atoms of the same elements with different mass numbers?
kakasveta [241]

Atoms of the same element with different mass numbers are called isotopes

6 0
3 years ago
Consider the molecules in the two proposed systems. How are they the same and how are they different?
allsm [11]

Molecules may be similar or different on the basis of size, shape, structure and chemical composition.

<h2>Similarities and differences</h2>

Two molecules can be considered similar or different on the basis of size, shape, structure and chemical composition. The molecules in the two proposed systems are consider the same when they are similar in size, shapes, structure and chemical composition.

While on the other hand, the molecules is considered different when they have different structure and chemical composition so we can say that molecules may be similar or different on the basis of size, shape, structure and chemical composition.

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3 0
2 years ago
Which measurement has the greatest number of significant figures?
soldi70 [24.7K]

Answer:

Option B = 60,600 mg  (correct option)

Explanation:

First of all we will have an idea which numbers are consider as significant.

1 = All non-zero digits are consider significant figures like 1, 2, 3, 4, 5, 6, 7, 8, 9.

2= Leading zeros are not consider as a significant figures. e.g. 0.02 in this number only one significant figure present which is 2.

3= Zero between the non zero digits are consider significant like 105 consist of three significant figures.

4= The zeros at the right side e.g 3400 are also significant. There are four significant figures are present.

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Option B have 5 significant figures.

Option C have 4 significant figures.

Option D have 3 significant figures.

Thus option b is correct option which have more significant figures.

3 0
3 years ago
How many significant digits are in the number 125,001?
Yuri [45]
The number of significant digits in the number 125,001 are: <span>6. 

</span>Significant digits are always:
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</span>2. <span>Any zeros between two significant digits are significant (for example 5 and 1)
</span>3. <span>A final zero or trailing zeros in the decimal portion only are significant.

Hope I helped!</span>
5 0
3 years ago
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