Substances that allow oil and water to mix, or emulsify, are

Ron and Hermione begin with 1.50 g of the hydrate copper (II) sulfate ∙ x-hydrate (CuSO4 ∙ xH2O), where x is an integer. Part of their practical exam is to determine this integer x.

What is a semiconductor? A: a substance that completely blocks the flow of electricity B: a comductor that has less conductivity than do metallic conductors C: a conductor that operates only at low temperatures D: a conductor that conducts

Which is classified as an inner transition element

Identify the substances that are likely to dissociate in water

N-O polar? or nonpolar?

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