The name of the commonly used hardness scaled is:

When does the end of a name of a negative ion end in - ide

Which term describes the degree to which an element attracts electrons?

Which of the following is a pH of a weak base? a) 1 b) 20 c) 8 d) 13 e) 5.6

How many formula units make up 24.2g of magnesium chloride (MgCl2) ?

Oxidation states of N2 + 3H2 - - > 2NH3

There are three ways that heat can move from one place to another. Use examples pertaining to how heat is transferred from the sun to Earth and in the land, ocean, and atmosphere to explain all three.

What is temperature? A measure of the kinetic energy of a system. Energy of a system. How hot something is. A measure of density.

How many molecules of sodium nitrate are produced when 17 g of sodium azide, NaN3, react according to the following equation: NaN3 (aq) + AgNO3 (aq) - --> AgN3 (s) + NaNO3 (aq) Question options: 3.7x1023 1.6 x 1023 1.85x1023 6.02x1023

Which statement is true for the given reaction? Zn + PbSO4

A student states the following: "Since acetone (nail polish remover) evaporate more readily than water, one would assume that acetone has weaker intermolecular forces than water." Evaluate their claim. (2 sentences)