True of false? Scientists estimate that one thimble of soil could hold more than 20,000 microorganisms.

Round 0.0952 km to 2 significant figures km 0.095 0.09 0.1

A substance with a higher ability to ionize is better able to conduct electricity in a solution. given this information, strong bases would also be: a. strong electrolytes. c. nonelectrolytes. b. weak electrolytes. d. strong acids.

When large masses of magma solidify very slowly far below earths surface, they form igneous rocks that have a ___? A. Glassy textures B. Classic textures C. Fine-grained textures D. Coarse-grained textures

Calculate the number of moles of potassium, K, in 1.21 x 1024 atoms of potassium

List 10 examples of substances that are beneficial in small quantities but poisonous in large doses

Which of the following elements is the most stable element? argon, manganese, phosphorus, robidium

List results of Chemical Reactions.

When you measure something in meters cubed, you are measuring

Low density: low pressure: high density Is which. evaporation? water vapor? condensation / liquid water

Which structures are found on sponges? pores medusae polyps stinging cells