If the volcanic ash from an eruption extends to 3.6 miles into the atmosphere, how many kilometers does this represent? (Hint: 1 mile = 1.6 kilometers.)

8. How many milliliters of solution is needed to make use 48.0 g calcium sulfide to make a 0.250 solution?

What does a habitat and a niche have in common

What is the mass in grams of 0.0135 mol of the element sodium, Na?

Harvey mixes two liquids. Which observation of the new mixture most likely indicates a precipitate is forming? A) a cloudy appearance B) a bubble formation C) a change in color D) a change in odor

Which of the following toxic forms of oxygen is improperly paired with the detoxifying enzyme or molecule?

Gasohol is a fuel containing ethanol (c2h6o) that burns in oxygen (o2) to give carbon dioxide and water.

Consider a neutral atom with 30 protons and 32 neurons. What is the atomic number of the element?

Find the molarity and molality of 37.0 wt% Hcl. Assume the density of the acid is 1.19g/ml

Which excerpt from "Bone Detective" best shows that Diane France is recognized as an expert in her line of work? But, once again, she was able to produce an amazingly detailed impression.

Blank of water is a physical change because boiling the water is blank from a liquid to a gas