A sample of an element has a mass of 34.261 grams and a volume of 3.8 cubic centimeters. To which number of significant figures should the calculated density of the sample be expressed?

(1) 5 (3) 3

(2) 2 (4) 4

When a water molecule is split, what is it split into? where do all the resulting components end up?

Which of the following do scientists use to form a hypothesis?.

A mixture of H2 and NH3 has a volume of 137 cm^3 at 0.00°C and 1.00 atm. The mixture is cooled to the temperature of liquid nitrogen at which ammonia freezes out and the remaining gas is removed from the vessel. Upon warming the removed gas to 0.

There are three gases in a sealed container. The partial pressure of gas A is 35 torr and the pressure of gas B is 3 torr. The total pressure in the container is 45 torr. What is the partial pressure of gas C?

How has the composition of the atmosphere changed overtime?

12.5ml of 2.0m NaOH neutralizes 10ml og HCL, what is the acid concentration

Can you explan process of budding in yeasts?

A sample of CO2 gas which weighs 1.62 grams has a volume of 1.02 liters when collected at 20oC. What would be the pressure of the gas sample?

Use the rate constants for the forward and reverse reactions to determine whether reactants or products are favored at equilibrium in this case: kforward Keq = kreverse When Kea < 1, the equilibrium lies to the left (reactants are favored).

Why is HBrO a weak acid