Which element is an alkali metal?

For the reaction CH4 + 2O2 = CO2 + 2H2O, how many moles of water ae produced from 1 mole of CH4?

Normal rain has a pH of about 5.5 whereas the most acidic rain measured in Los Angeles had a pH of 1.5. How much more concentrated in H + is the acid rain than the normal rain?

Hydrophobic compounds dissolve in (Select one): a. ionic solvents b. low dielectric constant solvents c. high dielectric constant solvents d. polar solvents such as water

What is the maximum amount of electrons possible in the inner shell of an atom?

If white light shines on an object and the red, orange, green, blue, indigo, and violet light is absorbed. What color does your eye see?

Plastic, rocks, and steel are all matter. They are made of tiny particles that can't be broken down into smaller pieces. These particles are called:

The palm tree with island is a population or biome or community

A gene is a section of dna within a chromosome that codes for a

An electron charge e mass m and a positron charge e mass m revolve around their common center of mass under the influence of their attractive coulomb force Find the speed v of each particle in terms of e m k and their separation L

Find the density of an object with a volume of 2.5 cm3 and a mass of 8.0 g.