1. in a compound, which type of bond is the sharing of electrons between adjacent atoms?

a. nuclear bond
b. electric bond
c. chemical bond
d. hydrogen bond

2. two compounds are mixed and light is emitted, the color changes, and heat is liberated.

which activity has occurred?

a. chemical reaction
b. chemical mixture
c. chemical nucleus exchange
d. chemical compromise

3. which sodium reacts with chlorine to make sodium chloride (table salt), which term applies to sodium chloride?

a. reactant
b. mixture
c. evaporate
d. product

4. which name is given to a reaction in which the number of each atom on one side of the equation is equal to the number of the same kind of atoms on the other side of the equation?

a. complete
b. atomic
c. balanced
d. electrical

5. in the reaction na + ci - - - > naci, which statement indicates whether the equation is balanced?

a. visual evidence is necessary to determine the balance of the reaction
b. atoms of the same kind are of equal number on either side of the arrow
c. atoms of the same kind are not of equal number on either side of the arrow
d. evidence of the heat reaction is necessary to tell whether the equation is balanced.

1. C. Chemical bond

2. A. Chemical reaction

3. Product

4. C. Balanced

5. B. Atoms of the same kind are of equal number on either side of the arrow

Explanation:

A chemical bond is a bond between two or more atoms. There are different types of chemical bonds, but the one that the question is pertaining to is called a covalen bond. A covalent bond occurs when the atoms are sharing electrons.

2. A chemical reaction is characterized by the production of light and/or heat, and a change in color in the product. By definition, it is the process where one or more substances react to produce one or more products.

3. When one or more reactants react with each other, it creates another substance or substances called products. In the case of your question, sodium  reacts with chlorine (these are your reactants), which produces the product sodium chloride, which is a compound.

4. By definition, a balanced equation is an equation where the number of atoms of each element in the reactants are equal to the number of atoms of each element in the product.

ex.

Reactants        Product

Na + Cl      →      NaCl

Na = 1                Na = 1

Cl = 1                 Cl = 1

5. As explained above and shown, you can see that the number of atoms of each element in the reactants is equal to the number of each element in the product. So this means that the equation is balanced.

answer; i believe that the correct answer is (c) explore the outer planets; / plz check good luck

answer: - 3.) the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

solution: - as per the rules, oxidation number of oxygen in its compounds is -2. the sum of oxidation numbers of all the elements of a molecule or compound is zero.

also, the oxidation number in elemental form is zero.

in no, the oxidation number of o is -2 so the oxidation number of n is +2 so that the sum is zero.

similarly, the oxidation number of c in co is +2 and o is -2.

on product side the oxidation number of n is 0 as it is in the elemental form() .

oxidation number of c in carbon dioxide is +4 as there are two oxygen in it and we know that each oxygen is -2.

so, oxidation number of n is changing from +2 to 0 and the oxidation number of c is changing from +2 to +4.

since nitrogen is reduced and hence no is acting as an oxidizing agent. carbon is oxidized and so co is acting as a reducing agent.

so, the right choice is number 3.)the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.