What is the mass in kilograms of 10.5 gal (39.7 L) of gasoline with a specific gravity of 0.82

Electrons occupy all the orbitals of a given subshell singly before pairing begins. These unpaired electrons have parallel spins. This is known as: a. Building Up Principle

If heat is absorbed by the system during a chemical change, it is called as

What is the charge of a hydrogen atom?

The energy possessed by a substance that allows it to be changed into a new substance

The forces that hold atoms together are called

If the volume of the mole of gas molecules remains constant, lowering the temperature will make the pressure

It refers to matter that do not have definite form or structure

If a single reactant is transformed by heat or electricity into two or more products, the type of reaction is

It is a product of the weathering of complex silicates, particularly of feldspars which are abundant minerals

An instrument that separates particles of different isotopic composition and measure their individual relative masses

Any process extracting the metal in a fused state is called

The element which has a mass of about 9 amu is Berylium (Be), atomic number 4. What is the charge on the Be atom?

If a more active element replaces a less active one in a compound, the reaction is:

These are compounds containing water molecules loosely bound to the other components

It is a colorless solid capable of being cut into brilliant crystals is the hardest, must abrasive mineral known

Compounds which contain only carbon and hydrogen are called

What pressure must be applied to 225mL of gas at 1atm to reduce its volume to 100mL?

How many moles of are present in 44.8L of at STP?

Three grams of sulphur dissolved in 200 g of naphthalene C10H8, was found decreasing the freezing point of the solvent to 0.72 ⁰C. Find the molecular weight of the solute. (Kf C10H8 = 6.9 ⁰C/molar)