An experiment can have more than one independent variable.

True

False

Why is saturated sodium chloride solution (also known as brine) used? a. to remove undissolved impurities b. to remove water from the organic layer c. to turn compounds into their salt form d. to separate acids and bases?

What is the mole fraction of lif in an aqueous solution that contains 39.4% lif (weight/weight %) ?

How is potential measured?

What's the smallest part of a compound

The molecule NH3 contains all single bonds. true false

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.