The mass of a 2.0 centimeter sample of a substance is 3.2 grams. Calculate the density of the substance

How come sedimentary rock become metamorphic rock

How many different polypeptides of 50 amino acids in length can be made from the 20 common amino acids?

Spontaneous reaction are always exothermic always take place at rapid rate

What is the formula for calculating the z

Complete the following Empirical Formula & Molecular Formula problem: 1.) A compound containing 63.15% C, 5.30% H, and 31.55% O. (Assume 100 g sample)

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