Have both metallic and nonmetallic properties

A. Halogens

B. O Metals

C. C Metalloids

D. O Nonmetals

What is the concentration of KCl if 10 g are dissolved in enough water to make 12 L?

If you moved from sea level to a high altitude area what would be the expected result on your hematocrit? question 8 options:

DNA is made of 2 chains of nucleotides. which type of bonds hold the chains rogether?

Which characteristic is not necessary for survival of the organism but is needed for the survival of the species

Spinal cord injuries can be difficult to treat because damaged nerve cells do not regenerate. why is that?

The root of the tooth is held by the periodontal ligament a. True b. Falsee

At the center of the Andromeda galaxy is a source of x rays that scientist believe is a black hole with how many more times than the sun

True or false? The more similar two organisms are, the more distant their common ancestor is.

The blood-brain barrier a. is fully developed in humans when they are born. b. prevents many drugs from entering the brain. c. is designed to allow all drug compounds into the brain. d. cannot be penetrated, even with trauma to the brain.

Which is another name for observations? Models Predictions Data Inferences