Which term best describes the materials that make up rocks?

A.

sand left by erosion

B.

different kinds of crystals

C.

layers of minerals

D.

compressed magma

What is a limitation of using a chemical formula, such as CH1206, to represent a compound? The chemical formula does not show the types of elements that make up the compound.

What is the correct way to write 1,550,000,000 in scientific notation? 1.55x 109 1.55 x 1010 15.5x 103 15.5x 10

36cm/sec to m/hr I need the dimensional analysis for this equation.

Why must sample spots be above the solvent in paper chromatography

What are the factors that affect the rate of dissolution? color, temperature, stirring texture, surface area, stirring temperature, stirring, surface area stirring, temperature, texture

Which of the following energy changes occurs as a ball bounces

Given the reaction 4NH3 + 5O2 4NO+6H2O, what is the total number of moles of O2 required to produce 40 mol of NO? (1) 5 mol (2) 9 mol (3) 32 mol (4) 50 mol

The liter is defined as a. 1000m3 b. 1000cm3 c. 1000g3 d. 1000c3

How many atoms are in 8.1 moles of oxygen? And how do you know?

Is oil used by other organisms on Earth? If yes, explain.