Which of the following is a compound?

• Co
• O₂
• C
• CO₂

Tags

NGSS.MS-PS1-1

Which of the following is NOT an element?

• H₂O
• H₂
• O₂
• Au

Tags

NGSS.MS-PS1-1

How many atoms are there TOTAL in:
H₂SO₄

• 6
• 5
• 7
• 3

Tags

NGSS.MS-PS1-1

How many Hydrogen are in 4H₂O?

• 6
• 8
• 2
• 4

Tags

NGSS.MS-PS1-1

Properties of a substance change,but the identity of the substance does not change.

• Physical Change
• Chemical Change
• Yields
• Reactant

Tags

NGSS.MS-PS1-4

The numbers that appear in front the formulas.

• Subscripts
• Coefficients
• Yields
• Products

A solid that forms from a solution during a chemical reaction.

• Yields
• Precipitate
• Reactant
• Product

How many molecules are in 10MgCl₂?

• 10
• 2
• 30
• 13

Tags

NGSS.MS-PS1-1

All of the following are chemical changes except

• iron rusting
• water evaporating
• wood burning
• food rotting

Tags

NGSS.MS-PS1-2

The formula below represents the most common carbohydrate known as glucose. Which information can be determined from the chemical formula?
C₆H₁₂O₆

• The structural arrangement of the atoms in a glucose molecule
• The color of a glucose molecule
• The size of a glucose molecule
• The number of atoms of each element in a glucose molecule

Tags

NGSS.MS-PS1-1