The molecular weight of table salt, NaCl, is 58.5 g/mol. A tablespoon of salt weighs 6.37 grams. Calculate the number of moles of salt in one tablespoon.

Helium (He), oxygen (O), carbon (C), and selenium (Se) are all nonmetal. Using the periodic table, which pair of these nonmetal has the most similar properties

Methanol (ch3oh) has a higher vapor pressure than octanol (c8h17oh) because

What mass will 2.5 L of chlorine gas be at STP?

Describe several main ideas in chemistry

What happens as the activation energy increases? The pressure of the system decreases. The kinetic energy of colliding molecules changes. The reactant surface area decreases. The reaction begins to slow down.

What does the number next to the ion signify?

Write a molecular equation for the precipitation reaction potassium chloride and lead (II) acetate

Which outcome is not caused by gravitational force?

Explain the properties of the substance around us depend on the atoms and molecules that compose them

What is an ion (1 mark) what is the charge on a chloride ion (1 mark) what is an ionic bond (1 mark)