Which element (s) are not balanced in this equation?

Fe2O3 + 3 CO → Fe + 3 CO2

A.

Only the Fe is unbalanced.

B.

Only the O is unbalanced

C.

Fe and O are both unbalanced.

D.

C and O are both unbalanced

One of the earliest atomic models was suggested by John Dalton in the early 1800s. Which statement best reflects his thinking at the time? A. Atoms can be divided into small parts. B. Smaller particles are found inside atoms. C.

How many chiral carbon atoms does the monosaccharide altrose have?

Why is objectivity important for scientific investigations?

Many classic experiments have given us indirect evidence of the nature of the atom. Which of the experiments listed below did not give the results described? A.

What happens to an Atom when it gains two electrons

How many bonds are present in Cl20?

Letti is having a problem in her experiment that she does not know how to solve. In order to move forward, Letti needs to be

How many ml of 2.50 m hno3 are needed to prepare a 75.0 ml of 1.00 m hno3?

The charge of the stable ion of P

A change in the properties of matter where chemical bonds are broken and new bonds are formed is a.) a chemical change b.) a physical change c.) an ionic change d.) a covalent change