In what type of change is matter conserved? select one:

a. physical only

b. chemical only

c. physical and chemical

How to prevent rusting?

Calculate the rms speed of an oxygen gas molecule, o2, at 17.0 ∘c.

There are 9 cherry cokes, 3 diet cokes, and 4 coke zeros in a cooler. Selecting a drink and getting a cherry coke, then a coke zero, without replacement makes this probability independent or dependent?

A chemical formula for a molecular compound represents the composition of

Explain how to determine the number of valence electrons an element has.

Most mutagens have what kind of an effect on an organism?

According to the hess's law, the enthalpy of solution is: δhsoln = δhsolute + δhsolvent + δhmix. considering dissolving a small drop of nonpolar pentane oil in water which term (s) in the equation will experience the largest enthalpy change.

Solve for x: ln x = 0.863. Report your answer to 3 significant figures.

What water activities might be easier to do in Lake Assal's salty water? What activities could be more difficult?

The suffix "-megaly in the term gastromegaly means: