What is the chemical formula of a compound that is composed of the ions Ca2 + and br-

How many elements are in a period in which only the s and p sublevels are filled

A flask has a mass of 78.23 g empty and 593.63 g when filled with water. when the same flask is filled with liquid x, its mass is 1026.57 g. what is the density of liquid x

Question 13 A chemistry student needs 60.0mL of pentane for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of pentane is ·0.626gcm-3.

The Living Planet Index (LPI), which measures trends in thousands of vertebrate species populations, show between 1970 and 2010. Terrestrial species declined by 39% between 1970 and 2010, a trend that shows down.

Members of a species can mate with each other and produce gene pools. O B . fertile offspring. O C. variations. o D. adaptations.

What's the ratio of 80% hydrogen

Why is warmer near earth surface

A platinum wedding band contains 0.077 mol of platinum. How many atoms of platinum are in the 15-gram platinum wedding band?

In an ecosystem where 500,000 kcal of sunlight is available for producers, approximately how much chemical energy will be contained in secondary consumers?

Question 6 if a gas pressure gauge reads 32.0 psi, what is the pressure in inches of mercury? 165 in. hg 15.7 in. hg 65.1 in. hg 32.0 in. hg 6.19 in. hg