How many hydrogen atoms are in 2NH3

Which of the following combinations of reactants will result in a synthesis reaction? A. Li + HCl B. Al + O2 C. Ca + H2O D. F2 + HCl

What kind of ion is contained in salts that produce an acidic solution?

What instrument measure the distance from the ground to the base of clouds

How many protons are in 10 ml of a solution that is at ph 1? (use avogadro's number as 6 x 10^23) ?

The mass of a proton is 1.00728 amu and that of a neutron is 1.00867 amu. What is the mass defect of a cobalt-60 nucleus? (The mass of a 60Co nucleus is 59.9338 amu.) 4.6136 x 10-23 g 8.9754 x 10-25 g 9.1747 x 10-25 g 1.0993 x 10-25 g 8.

explain why the hydrogen atoms in a hydrogen gas molecule form nonpolar covalent bonds but the oxygen and hydrogen atoms in water molecules form polar covalent bonds

The equation 2 N O 2 in equilibrium with N 2 O 4 represents a system,

How does the calorie compare to the metric unit the joule? How do you calculate a calorie? Is it the same for all types of food?

Under which conditions would the solubility of a gas be greatest? A. high pressure and high temperature B. high pressure and low temperature C. low pressure and high temperature D. low pressure and low temperature

How many milliliters is 0.55 L? O A. 1000 ml OB. 0.00055 mL O C. 550 ml D. 55 mL