Chemistry: Interactions of Matter Pt 1

Question 1

A material made of combined substances that each retain their own properties is called?

Accepted Answer

A mixture

Question 2

When different atoms combine in whole number ratios _______ are formed.

Accepted Answer

compounds

Question 3

In a _______ mixture, each substance can be easily distinguished.

Accepted Answer

heterogeneous

Question 4

Which classification(s) of matter is(are) pure substances?

Accepted Answer

Elements and compounds

Question 5

A compound is represented by its ________.

Accepted Answer

chemical formula

Question 6

Most materials we use and encounter daily are ________.

Accepted Answer

Mixtures

Question 7

Hot chocolate is a(n)...

Accepted Answer

Homogeneous Mixture

Question 8

Any material consisting of only one type of atom is classified as what?

Accepted Answer

An element

Question 9

The following image is an example of?

Accepted Answer

A heterogeneous mixture

Question 10

Table salt is an example of?

Accepted Answer

A compound

Question 11

If a Be Isotope has an Atomic # of 4 & an atomic mass of 12, how many neutrons does it have?

Accepted Answer

8

Question 12

A ____________ must occur to turn hydrogen peroxide into water.

Accepted Answer

chemical change

Question 13

How many protons are in a Potassium atom?

Accepted Answer

19

Question 14

Coal is a(n)

Accepted Answer

Compound

Question 15

Sea water is an example of?

Accepted Answer

A homogenous mixture

Question 16

Majority of the elements that are touching the bold staircase line on the Periodic table are

Accepted Answer

Metalloids

Question 17

T or F: In the solid state of matter, the atoms of an element will be tightly packed together.

Accepted Answer

True

Question 18

Which of the following is an example of a compound?

Accepted Answer

C

Question 19

Which of the following is NOT a state of matter?

Accepted Answer

element

Question 20

NaCl is...

Accepted Answer

Salt

Question 21

Cake Batter is a ...

Accepted Answer

Homogeneous Mixture

Question 22

Argon & Krypton are both in the ___________ family.

Accepted Answer

Noble Gases

Question 23

What number and types of atoms occur in NH3 ?

Accepted Answer

1 Nitrogen atom, 3 Hydrogen atoms

Question 24

Salad is a ...

Accepted Answer

Heterogeneous Mixture

Question 25

Which two elements would have similar characteristics?

Accepted Answer

Ca and Mg

Question 26

A bowl of cereal is a(n)

Accepted Answer

Heterogeneous Mixture

Question 27

How many electrons are in a Beryllium atom?

Accepted Answer

4

Question 28

A ___________ involves a chemical reaction where a new substance is formed.

Accepted Answer

chemical change

Question 29

Water freezing into ice cubes is an example of which of the following?

Accepted Answer

physical change

Question 30

_______ can be separated by physical means.

Accepted Answer

A mixture

Question 31

What is the difference between an element and a compound?

Accepted Answer

Compounds are made of more than one type of atom.

Question 32

Air is an example of?

Accepted Answer

A homogenous mixture

Question 33

In a _______ mixture, the material has the same composition throughout.

Accepted Answer

homogenous

Question 34

The following image is an example of?

Accepted Answer

An element

Question 35

Granite rock is an example of?

Accepted Answer

A heterogeneous mixture

Question 36

How many valence electrons (e-) does Group 17 have?

Accepted Answer

7

Question 37

Columns on the Periodic table are called...

Accepted Answer

groups

Question 38

A physical change in a substance ______ change what the substance is.

Accepted Answer

DOES NOT

Question 39

Which of the following is an example of an element?

Accepted Answer

A and B

Question 40

Rows on the periodic table are called

Accepted Answer

periods

Chemistry: Interactions of Matter Pt 1

Questions 40

Chemistry: Interactions of Matter Pt 1

Questions 40