Chemistry Final Review

List the subscripts in the product only.

• 2

• 2,2,3

• 2,3

• 4,3,2,

Tags

NGSS.MS-PS1-1

Periodic law states that the elements are arranged according to their atomic ________ so that elements with similar chemical properties are in the same ________ and properties repeat periodically.

• numbers, rows

• masses, rows

• masses, column

• numbers, column

Metals (select all that apply)

• are found on the right side of the periodic table.

• are found on the left side of the periodic table.

• are good conductors of heat and electricity.

• are brittle.

• are malleable and ductile.

Nonmetals (select all that apply)

• are found on the right side of the periodic table.

• are found on the left side of the periodic table.

• are good conductors of heat and electricity.

• are brittle.

• can be solid, liquids, or gases at room temperature.

What is the atomic number of Oxygen?

• 6

• 7

• 8

• 9

2H₂ + O₂ ----> 2H₂O What is the product?

• ------>

• 2H₂O

• 2H₂+ O₂

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

How many Oxygen atoms are in Al₂(SO₄)₃

• 4

• 12

• 7

• 24

Tags

NGSS.MS-PS1-1

A ______ is a number written in front of a chemical formula.

• Coefficient

• Subscript

• Exponent

• Coordinator

How many atoms of Hydrogen are in this compound?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

A subscript is the small number below the element symbol that tells the number of _______ of that element.

• atoms

• valence electrons

• protons

• elements