Ch. 7 part b

Question 1

identify characteristics belonging to acids or bases

are sour tastes acids or bases?

Answer 1

acids

Question 2

identify characteristics belonging to acids or bases

if it can burn or be corrosive is it an acid or a base?

Answer 2

acid

Question 3

identify characteristics belonging to acids or bases

If it has a bitter taste is it an acid or a base?

Answer 3

A base

Question 4

identify characteristics belonging to acids or bases

If it is baking soda, soap, or bleach is it an acid or a base?

Answer 4

all bases

Question 5

The sum of the number of protons and neutrons results in an atom’s approximate _____.

Answer 5

Atomic mass

Question 6

Scientist ___________ developed a simplified model of an atom.

a. Niels Bohr
b. Dmitri Mendeleev
c. Ernest Rutherford
D. Robert Boyle

Answer 6

B. Niels Bohr

Question 7

The scientist ___________ developed the periodic table of the elements.

a. Niels Bohr
b. Dmitri Mendeleev
c. Ernest Rutherford
D. Robert Boyle

Answer 7

B. Dmitri Mendeleev

Question 8

When positively and negatively charged ions attract each other they form a(n) _____.

a. indicator
b. neutron
c. ionic bond
d. covalent bond

Answer 8

c. ionic bond

Question 9

In a(n) ____ atoms share electrons.

a. element
b. salt
c. ionic bond
d. covalent bond

Answer 9

d. covalent bond

Question 10

A _____ reaction occurs when a compound is broken down into simpler compounds.

a. synthesis
b. replacement
c. decomposition
d. combustion

Answer 10

C. decomposition