If an element has 4 protons and 5 neutrons its mass number is

Why the atomic mass of the copper is not exactly equal to 64

Which mixture is homogeneous

What is the ph of the benzoic acid solution prior to adding sodium benzoate?

What is another name for the acid dissociation constant? a. ionization constant b. equilibrium constant c. rate constant d. mole fraction

What is the legal age for marriage in the U. S.?

Complete the following statement by checking all that apply Creativity allows scientists to develop multiple approaches to solving problems. adapt to changes in scientific knowledge. look at old problems in new ways.

The atomic weight of hydrogen is 1.00794. a. True b. False

Describe What kind of ions do metals form? What kind of ions do nonmetals form?

A car is driven through streets treated with salt and then parked in a warm garage. a) How will the rate of rusting compare with a car that has not been driven in the streets treated with salt but left parked outside?

Amalgam is an alloy that contains mercury and other metals. Which of these atoms would most likely form metallic bonds with mercury? Check all that apply. bromine copper hydrogen iodine silver tin