Chapter 6

Question 0

In writing an equation that uses phosphorus in the reactant, the correct representation of phosphorus is

Answer 0

P4

Question 1

What observations indicate that a chemical reactions has occured?

Answer 1

Formation of a precipitate
Production of gas
Evolution of heat and light

Question 2

Small whole number that appears to the right of an element in a chemical formula

Answer 2

Subscript

Question 3

Chemical equation is balanced when

Answer 3

the number of each kind of atom in the reactants is the same as in the products

Question 4

Symbol for a substance in water solution

Answer 4

Aq

Question 5

Chemical formula written over the arrow in a chemical equation means

Answer 5

A catalyst for the reaction

Question 6

Products are _____ of the equation

Answer 6

Right

Question 7

Symbol for to yield

Answer 7

–>

Question 8

Burning in air or combust means

Answer 8

Reacting with +o2

Question 9

phosphorus

Answer 9

P4

Question 10

Hydrogen

Answer 10

H2

Question 11

Oxygen

Answer 11

O2

Question 12

Nitrogen

Answer 12

N2

Question 13

Fluorine

Answer 13

F2

Question 14

Chlorine

Answer 14

Cl2

Question 15

Bromine

Answer 15

Br2

Question 16

Iodine

Answer 16

I2

Question 17

Astatine

Answer 17

At