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bezimeni [28]
3 years ago
8

Name or write the formula for the following polyatomic ions

Chemistry
1 answer:
Delvig [45]3 years ago
5 0

Answer:

Name                                Formula

nitrite ion                        NO2−

permanganate ion                MnO4−

phosphate ion                 PO43−

hydrogen phosphate ion      HPO42−

Explanation:

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Annual precipitation rates can be collected for several years, added together, and divided by the number of years to obtain an a
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The average annual precipitation has been calculated by dividing the sum of average rainfall to the number of years. Thus, the given statement is true.

Precipitation has been given as the amount of water in the atmosphere that has been to fall off on the earth.

<h3 /><h3>Average Annual Precipitation</h3>

The average has been defined as the mid-value for the number readings. The average precipitation has been the approximate fall of water on the earth in the specified period.

The average annual precipitation has been calculated with the ratio of the sum of the average rainfall in the number of years to the total number of years. Thus, the given statement is true.

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2 years ago
7. Which part moves the blood away from the heart?
ki77a [65]

Answer:

Veins

Explanation:

Veins, which usually look blue, return blood to the heart.

7 0
2 years ago
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The chemical equation of the reaction between Hydrogen and Oxygen is given below
Firdavs [7]

Answer:

1. a. The reactants are H₂ and O₂; The product is H₂O

b. The equation is not balanced because the number of atoms of the elements reacting is not equal to the number of atoms produced. 2 atoms of oxygen reacted but only one atom of oxygen is produced.

c. 2 H₂ + O₂ ---> 2 H₂O

2. a. The monotonic molecule is the sodium molecule, Na, since itnis made up of only one atom in its molecule.

The diatomic molecule is oxygen molecule, O₂, since it is made up of two atoms in its molecule.

b. The chemical compound present is sodium oxide, Na₂O

c. 4 Na + O₂ ---> 2 Na₂O

Explanation:

In a chemical reaction, the reactants are the elements or compounds which are converted to a new substance whichnis known as the product. The products are the new substances formed from the reactants.

In the given equation of reaction below;

H₂ + O₂ ---> H₂O

a. The reactants are H₂ and O₂; The product is H₂O

b. The equation is not balanced because the number of atoms of the elements reacting is not equal to the number of atoms produced. 2 atoms of oxygen reacted but only one atom of oxygen is produced.

c. 2 H₂ + O₂ ---> 2 H₂O

2. Given the reaction equation below:

Na + O₂ ---> Na₂O

a. The monotonic molecule is the sodium molecule, Na, since it is made up of only one atom in its molecule.

The diatomic molecule is oxygen molecule, O₂, since it is made up of two atoms in its molecule.

b. The chemical compound present is sodium oxide, Na₂O since itconsists of two chemically combined elements, sodium and oxygen.

c. 4 Na + O₂ ---> 2 Na₂O

6 0
2 years ago
What mass of NH3 can be made from 35.0g of N2?
egoroff_w [7]
Formation of ammonia by nitrogen and hydrogen is habers process wher 28g N2 results in formation of 34g NH3
so 35g N2 will form 34*35/28=42.5g NH3 where it given that reaction takes place in excess of H2
N2+3H2 gives 2NH3
4 0
3 years ago
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Given the balanced equation representing a reaction:
notsponge [240]

Answer:

it is a base because they accept H+ ions

Explanation:

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3 years ago
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