What is the mass number of the isotope zinc - 65?

a. 30

b. 65

c. 35

d. 95

Suppose you find a yellow piece of metal in a stream how could you tell it's real gold

Consider the following representation of a reaction mechanism. Step 1: Unimolecular (fast) Step 2: Bimolecular (slow) Step 3: Unimolecular (fast) Which conclusion about the rate law for the reaction above is reasonable? A.

Calcium chloride (cacl2) is an ionic compound that dissociates in water. a chemist forms a solution by mixing 0.50 mol cacl2 and 1.0 kg of water. how many moles of ions are in the solution?

What is the actual yield if only 50% of a theoretical yield of 200g is formed. A.) 100g B.) 75g C.) 120g D.) 140g

True or False: According to the present atomic theory, the location of an electron in an atom is best represented by a probability cloud.

Which does not add to the reliability of a scientific source of information? displaying data in a colored chart clearly identifying the sources of the data explaining how the data was collected showing that many scientists had reviewed the

Given that pH + pOH = 14, what is the pH of a solution if its pOH is 12.4?

How long does it take to anser this quesiton fist one gets brialyest

Which of the following quantities is conserved in a chemical reaction

Describe soda on the effect of baking stomach contents with ph4