Which is not an indication of a chemical change

Chemical synthesis of drugs allowed development of cancer treatments that save lives. yes or no

Define empirical formula

Compare and contrast atoms elements compounds and molecules

Which of the following is true about an atom of carbon? It can be divided into smaller particles that all have the same properties. It consists of subatomic particles, each having its own properties.

An atom can be described as a-the smallest particle that has all the characteristics of a compound b-the smallest particle that has all the characteristics of an element c-a charged particle that is similar to a molecule d-a charged particle that is

What type of ion does neutral produces

What statement defines enzymatic activity

Volcano formation is directly related to plate tectonics. True False

The solubility of nitrogen gas at 25 degrees C and 1 atm is 6.8 x 10^ (-4) mol/L. If the partial pressure of nitrogen gas in air is 0.76 atm, what is the concentration (molarity) of dissolved nitrogen? 5.2 x 10^ (-4) M 1.1 x 10^ (-5) M 4.

Units of work would be equivalent to a Newton times a meter.