What type of substance reacts with limestone (CaCO3) and produces carbon dioxide gas? a neutral substance

a base

acid

both an acid and a base

What causes clouds to form on the upwind side of mountain ranges

1. There are six kingdoms of living things. Archaebacteria is one of these kingdoms. Which choices are also kingdoms of living things? Choose all answers that are correct. A. Arthropods B. Eubacteria C. Protista D. Animalia

Heterogeneous mixture that contains large particles that can settle out or be filtered

What is the geocentric model? What is the heliocentric model? What observations and questions were asked that the geocentric model could not explain? Why is the heliocentric model not correct?

What is the mass of water that results from combining 2.0 g of hydrogen with 16.0 g of oxygen? A. 14.0 g B. 16.0 g C. 18.0 g D. 20.0 g

What kind of wavelength do television signals have? a. Short c. Long b. Intermediate d. Very rapid

What gene is responsible for tumor suppression? A. beta - galactoside B. p53 C. alpha goblin D. beta goblin

How does ur body maintain constant tempature on a hot day?

1. What is the probability of rolling a five on one die three times in a row? 2. The allele for a cleft chin, C, is dominate among humans. Using a punnet square, what are the results of a cross between parents with genotypes Cc and cc

A chemical is placed in a beaker containing 20 g of soil and 500 mL of water. At equilibrium, the chemical is found in the soil ast a concentration of 100 mg. kg-1 of soil.