What is the empirical formula of a compound that is 79.8% carbon and 20.2% hydrogen?

The process of isotopes breaking down and emitting particles, such as alpha or beta, to form a new substance.

A 50.00 g sample of an unknown metal is heated to 45.00°C. It is then placed in a coffee-cup calorimeter filled with water. The calorimeter and the water have a combined mass of 250.0 g and an overall specific heat of 1.035 cal/g•°C.

The hormones released due to stress lead to increased risk of pregnancy. T F

Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of Al (C2H3O2) 3 and LiNO3 are mixed.

The main difference between speed and velocity is that velocity includes this: units there is no difference magnitude direction

What type of solution is aerated water. why is it so.

What elements form chemical bonds

Which of the following is not a pseudoscientific claim

Which action by the British government was considered by American colonists to be a violation of their rights as Englishmen?

Calculate moles of oxygen atoms in 0.68mol of KMnO4