The mass of an object is the ___.

A) amount of matter it contains

B) amount of space it takes up

C) amount of water it displaces

D) force of gravity acting on it

What is an ionic bond?

At constant pressure, the combustion of 5.00 g of c2h6 (g) releases 259 kj of heat. what is δh for the reaction given below? 2 c2h6 (g) + 7 o2 (g) → 4 co2 (g) + 6 h2o (l).

An insoluble solid that forms from a chemical reaction is called a (n)

If 3.64g of sand is separated from 5.25g of a mixture of salt and sand what is the percentage of sand in the sample

The ability of carbon to attrack electrons is

An experiment is performed using 7 liquids; Methanol, Ethanol, Propanol, Butanol, Water, Pentane and Acetone. a.) The order of rates of evaporation from fastest to slowest are shown: Pentane, Ethanol, Methanol, Acetone, Water, Propanol and Butanol.

What does a molecule look like

If a student calculated 0.02789 moles of copper (II) cations (Cu2 + ions) in the sample, how many moles of copper metal (Cu0) could be obtain from the sample at the end of the experiment?

99pts! Which of the following best explains what happens when the kinetic energy of particles in a gas state decreases? They vibrate so quickly that the particles ionize and become plasma.

Which substance can act as an arrhenius base in an aqueous solution