How many calcium (Ca) atoms are in the chemical formula:

CaCO3

1

5

3

None

Which of the following is a producer? A. a crow that consumes a dead animal on the side of a road B. a fish that eats smaller fish for its food C. a giraffe that eats the leaves of trees D. a plant that has insect larvae feeding on its roots

A gas has a volume of 56.3L when its temperature is 280 K. What will volume be at 220K?

Determine the molar solubility of agbr in a solution containing 0.200 m nabr. ksp (agbr) = 7.7 * 10-13. determine the molar solubility of agbr in a solution containing 0.200 m nabr. ksp (agbr) = 7.7 * 10-13. 5.8 * 10-5 m 0.200 m 1.54 * 10-13 m 8.

Which element forms an ionic bond when combined with Cl

Matthias wants to dissolve a solid sample of calcium chloride (cacl2), which is an ionic compound. Which solvent will dissolve the sample of calcium chloride? Solid copper water, a polar solvent hexane, a nonpolar solvent liquid mercury

What part of an original isotope's number of atoms remains after two half lives?

What gas has formed when bubels form when water is boiled?

A physical property can be observed or measured without changing the identity of a substance. Which of these choices describes a physical property? The temperature at which a liquid will boil. The tendency of a substance to explode.

What is the correct order of sediment size from smaller particles to bigger particles?

How do the chemical properties of oxides change from left to right across a period? From top to bottom within a particular group?