Which of the following elements do living things have that volcanic rocks do not have?

Oxygen

Silicon

Magnesium

Carbon

What does the sand do in the fracking process?

Which reactants form the salt CaSO4 (s) in a neutralization reaction? (1) H2S (g) and Ca (ClO4) 2 (s) (2) H2SO3 (aq) and Ca (NO3) 2 (aq) (3) H2SO4 (aq) and Ca (OH) 2 (aq) (4) SO2 (g) and CaO (s)

A 600g boulder has a density of 8g/cm3. What is the volume of the boulder?

Sodium fluoride (naf), sodium fluorosilicate (na2sif6), and fluorosilicic acid (h2sif6) are commercially available in 100.0-lb containers. calculate the mass, in kg, of fluoride ion (f-) in a 100.0-lb container for each of these three compounds.

Acid charge Perchloric acid ion

Which of the following best explains why electrometallurgy is a useful process in many industries? A.) Electrometallurgy can etch permanent marks and designs into the surfaces of metal products. B.

Your TLC results for ortho-hydroxyacetophenone versus para-hydroxyacteophenone will indicate that one compound is significantly less polar than the other.

A box contains equal amounts of helium, argon, and krypton (all gases) at 25 ∘c. part a consider the temperatures, masses, average velocities, and average kinetic energy of the three kinds of gas in the mixture.

Why are coastal zones productive?

Why aren't there any plate boundaries in Maryland?