1000kj-850kj what is the change in energy for the reaction

How many moles are found in 600 grams of iron

What happens to electrons during an ionic bond

Why organizing elements in increasing mass numbers would be rejected as a form of the periodic table?

Magnesium reacts with aluminum chloride. if you have 40g of each, how many grams of Al can you make? what is the LR? how much excess is left over after the reaction takes place

Obsidian is a volcanic glass that forms when lava cools very quickly and consists of a solid mass of glass through and through.

Which of the following is a common property noble gases

How many moles are in 373.8 grams of bromine?

An organism's scientific name is a combination of its

A balloon has a volume of 6.2 liters at 23.2 C. The balloon is then heated to a temperature of 144.0 C. What is the volume of the balloon after heating?

State one qualitative and one quantitative statement of the following : water, sodium hydroxide, air, gold, mercury, carbon, iron and hydrogen gas