The copper burned in the presence of another substance to form the dark coating on the wire what was that other reactant?

A. Water

B. Oxygen gas

C. Copper oxide

D. Carbon

(The answer is not C I already tried this on the test.)

This element has an atomic number that is double the atomic number of silicon. What element is it?

Think of a situation where "particle motion" is a blessing in disguise for the entire humanity.

What is the volume of 0.24 mol oxygen (O2) gas at 345 K and a pressure of 0.75 atm

How could the appearance of a substance change with out it becoming a different substance

The energy of moving electrons is known as?

What is wosutah unsrcambled

How many moles of al2o3 are formed when 0.78 mol o2 reacts with aluminum?

The dissociation of a weak electrolyte is suppressed when

There are seven major levels of classification. Kingdom and Phylum are just two of the levels. Which of the following are also major levels of classification? Choose all answers that are correct. A. Class B. Order C. Family D. Level

An experiment with high validity is