Which of these would be caused by a chemical change?

A) The formation of lava.

B) Sedimantary rock layering over time.

C) Metamorphic rock forming from igneous.

D) Metamorphic rock eroding to form sedimentary rock.

How many moles of C atoms are present in a sample of 3.85*10^24 C atoms?

Determine the number of significant figures in each of the following measurements A). 11 soccer player B). 0.070020 meter C). 10,800 meters D). 0.010 square meter E). 5.00 cubic meters F). 507 thumbtacks

What are living things

A plasma that has particles that never collide frequently enough to exchange kinetic energy and never reach a temperature equal to the surroundings is categorized as a thermal plasma. ionized plasma. low density plasma. nonthermal plasma.

Determine how many valence electrons magnesium contains

What is the best name for the molecule below? a compound with 10 total carbons with a double bond and the rest single bonds.

What Word means the gradual change and build up of organisms in an enviroment

If you see the Sun is high in the sky, what can you say about the SUN as viewed from the opposite side of Earth at the same moment?

What element has 8 valence electrons

Which of the following best describes a metal? Brittle, shiny, and solid Brittle, dull, and low density Malleable, shiny, and able to conduct heat or electricity Malleable, dull, and solid, liquid, or gas at room temperature?