What 4 elements did people originally think made up everything?

An automobile engine is 2.60 liters how many cubic inches is this

Which best describes the function of a centrifuge? to separate the solute from the solvent to separate the dissolved part of a solution into layers to separate a mixture by heating it for a long period of time to separate the undissolved particles

Compare how heat flows during exothermic reactions and endothermic reactions. Explain what happens to the thermal energy of the surroundings in each case.

Determine the number of moles of hydrogen atoms when you are given 2 moles of water.

What international body of chemists has decided the name of 6 new elements?

Will zinc and sodium carbonate react?

What fraction of carbon 14 remains in an animal frozen in a glacier 18000 years ago?

How do you convert the number of molecules of a substance to the number of moles? a. add Avogardo's number b. subtract Avogardo's number c. multiply Avogardo's number d. devide Avogardo's number

Give 3-5 pieces of evidence to support why cloning is bad.

Nitrogen combines with oxygen to form nitrogen monoxide (no) and nitrogen dioxide (no2). a sample of no consists of 1.14 g of oxygen and 1 g of nitrogen.