What is the atomic mass?

A: The sum of the protons and neutrons

B: The difference of the protons and neutrons

C: The sum of the protons and electrons

D: The difference of the protons and electrons.

What does a graph with no trend indicate about the variables?

A student says, "The initial concentration of a reactant was doubled, and the rate doubled. Therefore the reaction is second order in that reactant.

Which sample of matter is a mixture

The abundance of 79br is 50.69%. the abundance of 35cl is 75.77%. calculate the abundance of 79br35cl.

Which answer shows the correct balanced equation showing the process of iron oxide (upper case F lower case e subscript 2 end subscript upper case O subscript 3 end subscript) explosively combining with aluminum (upper case A lower case l) to

How many moles are in. 12 grams of gold.

When lithium reacts with bromine to form the compound LiBr, each lithium atom: (1) gains one electron and becomes a negativelycharged ion (2) gains three electrons and becomes a negativelycharged ion (3) loses one electron and becomes a

Based on what you know about matter, explain why the food coloring mixes at different rates

What does the variable A stand for in the Arrhenius equation? A. activation energy B. frequency factor C. rate constant D. reactant concentration

Name 3 sets of elements that have been added to the periodic table since mendeleev's time