What is found in the atmosphere in the clouds

What are the horizontal rows of the periodic table called

Which of the following equations are balanced? A: 2H2 + O2 → 2H2O B: 2S + 3O2 → 2SO3 C: Li + Cl2 → LiCl D: 2K + 2H2O → H2 + 2KOH E: 2Fe + Cu (NO3) 2 → 2Cu + Fe (NO3) 2

A 36.4-l volume of methane gas is heated from 25°c to 88°c at constant pressure. what is the final volume of the gas?

How many oxygen are present in 2.50 mol of oxygen molecules?

What factors are requierd for cloning

Which of the following statements is true? Water is easily polluted because it can dissolve harmful chemicals O When water freezes, it contracts and becomes more dense.

What causes combustion in cars?

A potassium atom (atomic number 19) and a bromine atom (atomic number 35) can form a chemical bond through a transfer of one electron. The potassium ion that forms has 18 electrons. What best describes the bromide ion that forms?

A 0.450 g0.450 g sample of impure CaCO3 (s) CaCO3 (s) is dissolved in 50.0 mL50.0 mL of 0.150 M HCl (aq) 0.150 M HCl (aq).

Define and explain bond energy.