What type of rock is formed after magma or lava cools hardens?

A. layers form

B. heat and pressure are applied

C. lava cools

D. erosion breaks down

In the reaction _ Al + 302 + 2Al2O3, what coefficient should be placed in front of the Al to balance the reaction?

Similarities of wind erosion and water erosion

Which region (s) of the period table contains elements that can adopt both positive and negative oxidation numbers?

If the temperature of a gas confined to such a cylinder is raised from 287°C to 587°C, what is the ratio of the initial volume to the final volume if the pressure exerted on the gas remains constant?

What is the pH of a 0.025 M [OH] solution?

3. Which net ionic equation describes this reaction? 3Ca (OH) 2 (aq) + 2FeCl3 (aq) → 3CaCl2 (aq) + 2Fe (OH) 3 (s) 3Ca2 + (aq) + 3OH - (aq) + Fe3 + (aq) → Fe (OH) 3 (s) + CaCl2 (aq) Fe3 + (aq) + 3OH - (aq) + 3Ca2 + (aq) → Fe (OH) 3 (s) + 3Ca2 + (aq)

How many moles of methane are produced when 25.1 moles of carbon dioxide gas react with excess hydrogen gas?

Which reaction releases the greatest amount of energy per kilogram of reactants? A) neutron + uranium-235 ➡️ barium-141 + krypton-92 + 3 neutrons B) 2C + H2 ➡️ C2H2 C) C3H8 (g) + 5O2 (g) ➡️ 3CO2 (g) + 4H2O (l) D) NaOH (aq) + HCl (aq) ➡️ NaCl (aq) +

Name the hardest artificial substance known?

Suzzane has type A - blood. Which thpe of blood could she receive in a blood transfusion?