Matter and Its Interactions

What is the atomic mass of Au

• 196.97

• 107.87

• 200.59

• 101.07

What coefficient can be used on the right to balance the following

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-5

What do you call the center of an atom

• nucleus

• neutron

• nuclear

• nectar

If you have 3 molecules of H2O how many atoms are present?

• 6 Hydrogen 3 oxygen

• 6 Hydrogen 6 oxygen

• 3 Hydrogen 6 oxygen

• 3 Hydrogen 3 oxygen

Tags

NGSS.MS-PS1-1

What does the arrow mean in a chemical equation?

• yields

• direction

• reactant

• product

What do we call the formulas to the left before the arrow in a chemical equation?

• reactants

• product

• prefix

• retracts

Tags

NGSS.MS-PS1-1

What do we call the formulas to the right after the arrow in a chemical equation?

• products

• retracts

• prefix

• reactants

Tags

NGSS.MS-PS1-5

What number is at the top of the element card

• atomic number which is also number of protons

• atomic number which is number of neutrons

• atomic mass which is also protons

• atomic mass which is also neutrons

Tags

NGSS.MS-PS1-1

Which of the following correctly models the law of conservation of mass?

• &&& + @@ --------> @&@&&

• $$$ + ** --------> $$*

• ### + @@@# ---------> #@#@#

• #$&% ---------> $$$$@

Tags

NGSS.MS-PS1-5

What Coefficients from left to right will balance this equation?

• 1,3,2

• 1,3,3

• 1,1,2

• 3,3,4

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5