• 120

• 180

• 109.5

• 90

Which TWO properties would cause high lattice energy in an ionic solid?

• large ion radii

• small ion radii

• high ion charges

• low ion charges

If [A] vs time is linear the reaction is _____.

• zero order

• 1st order

• 2nd order

• 3rd order

Tags

NGSS.HS-PS1-5

• 120

• 180

• 109.5

• 90

If a reaction is exothermic, the average bonds in the products formed are ____ than the average bonds in the reactants.

• stronger

• weaker

Tags

NGSS.HS-PS1-4

Why is a calcium atom larger than a magnesium atom?

• Ca has a larger molar mass than Mg

• Ca has electrons in a higher energy level than Mg

• Ca has more protons than Mg

• Ca has more valence electrons than Mg

Tags

NGSS.HS-PS1-1

On average, particles of a gas with a high mass will move slower than a gas with a low mass at the same temp.

• True

• False

• AB

If a rxn is endothermic, the average bonds formed in the products are ___ than the average bonds broken in the reactants.

• stronger

• weaker

Tags

NGSS.HS-PS1-4

Forming bonds is

• Endothermic

• Exothermic

• Isothermic

• Fun

Tags

NGSS.HS-PS1-4