Which of these are isotopes of each other? Boron-12, Carbon-12, Carbon-13, Nitrogen-13

Why do you think forensic scientists are so careful that the tests they do are sensitive, reproducible, and specific?

Draw the product formed when cyclohepta-1,3,5-triene (pka = 39) is treated with a strong base.

For the hydrocarbon toluene for which the grams of carbon per gram of hydrocarbon is 0.9125 calculate the mass of H that combines with 1 g. of carbon.

Charge on monatomic ions: a) I b) Sr c) K d) N e) S f) In

Each element has three numbers listed under it. which value represents the atomic radius

What are some ways population size is limited within an ecosystem?

Which occurs when a warm fluid cools down? Energy is released to the environment. Energy is absorbed from the environment. The density of the fluid decreases. The mass of the fluid decreases.

If 3 g of element C combine with 8 g of element D to form compound CD, how many grams of D are needed to form compound CD2?

An easy way to assign the number of d-electrons (the “d count”) in a transition metal ion is to first look at the periodic table and take note of which group the element is in.

A basketball weigh more after it was inflated with air then when it was deflated how does this show that gas is matter