Which of the following is a characteristic typically not used to classify biomes?

a.

climate

b.

vegetation

c.

temperature

d.

geography

Which of the following statements about the effective nuclear charge (Zeff) is correct? a. Zeff increases across a period and is relatively constant down a group. b. Zeff decreases across a period and increases down a group. c.

Which compound can act as both a Bronsted-Lowry acid and a Bronsted-Lowry base? a. water b. ammonia c. sodium hydroxide d. hydrochloric acid

Will the precision of a calculation (ex. volume = l x w x h) ever be more precise than the original measurements (ex. length) ? explain your answer.

A cup holding 125.12g of water has an initial temperature of 26.8 degrees C. After a 35.08g piece of metal, at 99.5 degrees C, is transferred to the water, the temperature rises to 29.7 degrees C. What is the specific heat of the metal?

5. What happens to the mass when you change the volume? It decreases

What is the chemical name for nicl2?

How to determine the formula is you know g and L?

What are the similarities between low mass stars and high mass stars

The atomic number of calcium (Ca) is 20, and it's mass number is 40. What is true about the subatomic particles that make up a neutral atom of calcium? A) It has 20 protons, 20 neutrons and 20 electrons.

Explain why a sidewalk has built-in cracks every few feet?