Why is it important for a soil to have air spaces?

What metalloid has 2 electrons in its 4p orbitals?

How many protons does mercury have?

Explain how it is possible for a compound to have both ionic and covalent bonds

How does the molecular motion of a substance change when it goes from liquid to solid? A. The molecules gain energy, and their relative motion increases. B. The molecules gain energy, and their relative motion decreases. C.

What is the pH of a solution with a hydrogen-ion concentration of 4.2 x 10-10 M?

Which has the highest viscory? Milk? Water? Orange juice?

What was venter's comtributionto science?

How many atoms are in 151 g of calcium?

Which statements about the formation of the solar system are true and in a correct order? A. A black hole collapsed to form the sun; small planetary objects formed; small planetary objects collided with each other to form larger objects. B.

Which is an important step in the alternate method for balancing equations in redox reactions? a) indicating the types of bonds found in the molecules. b) determining the speed at which reactions take place.