Two substances that have the same number of moles of representative particles always have: Answer the same number of atoms the same masses the same weights none of the above

The compound that gives hot peppers their burning taste is called a:

What is the molarity of a solution containing 56 grams of solute in 959 mL of solution? (molar mass of solute is 26 g/mol)

The most penetrating neclear radiation is

What is the name of the acid hclo2?

Stomach acid has a pH of about 2. What conclusion can you reach about the pH of an antacid solution that is used to neutralize excess stomach acid?

Arrange the elements in order of increasing atomic radius Mg Ba F S

Based on the enthalpy changes given for the reactions, which reactions are endothermic? (check all that apply) 2H2O → 2H2 + O2, ΔH = 484 kJ C + O2 → CO2, ΔH = - 394 kJ H2 + Br2 → 2HBr, ΔH = - 73 kJ 2NH3 → N2 + 3H2, ΔH = 92 kJ

Which of the following is not true about performing biological investigations reading and understanding Metric system

At 29°C, Kp = 5.3 ✕ 102 atm-2 for the following reaction. N2 (g) + 3 H2 (g) equilibrium reaction arrow 2 NH3 (g) When a certain partial pressure of NH3 (g) is put into an otherwise empty rigid vessel at 29°C, equilibrium is reached when 55.

If ice is heated at constant pressure of 0.0512 ATM will it