You should be worried about the safety of a healthcare product if you see which of the following claims made?

a. FDA approved!

b. Miracle cure!

c. Scientifically tested!

d. Effective in double-blind study!

How many neutrons are found in a stable isotope of uranium-235?

Which is an effect of short term expsure to stress

The word atom means invisible?

If a sample of 0.150 g of kcn is treated with an excess of hcl, calculate the amount of hcn formed in grams.

Consider the following balanced reaction between hydrogen and nitrogen to form ammonia: 3H2 (g) + N2 (g) →2NH3 (g) How many moles of NH3 can be produced from 19.0 mol of H2 and excess N2?

What is unique about the way that transition metals form compounds? a. They don't form compounds c. They can form bonds with the electrons in the two outer-most shells b. They are the most reactive d. They can donate all of their electrons

What prompted rutherford to do the alpha particle scattering experiment?

How many moles of hydrogen would be required to produce 5.0 mol of water?

What is the biggest difference between an exothermic and endothermic process? A. The direction of energy flow. B. The amount of energy transferred. C. The type of energy being transferred. D. The speed with which energy is transferred.

The mass of 1 mol of chromium (atomic mass 51.996 amu) is