Name two elements that hace properties similar to those of the element calcium (ca).

Be sure to answer all parts. A concentration cell consists of two Sn/Sn2 + half-cells. The electrolyte in compartment A is 0.23 M Sn (NO3) 2. The electrolyte in B is 0.87 M Sn (NO3) 2.

Water is a good solvent when A) the solute is hydrophobic. B) the solute is nonpolar. C) the solute is polar. D) the solvent is oil.

Energy that is associated with the position or composition of an object is called a kinetic energy. b potential energy. c thermal energy. d chemical energy.

At 3 atm pressure the volume of gas is 1200ml. What pressure is required to reduce the volume of the gas to 300ml if the temperature remains constant

Erosion occurs when natural forces alter a landscape. What does it mean to alter a landscape?

Which of the following requires an oxidizing agent? Al yields Al3+ 2 O yields O2 Cl2 yields 2 Cl- Ag + yields Ag

If a color change occurs when two solutions are mixed has a chemical reaction likely occurred?

Using the following thermochemical data, what is the change in enthalpy for the following reaction? Ca (OH) 2 (aq) + 2HCl (aq) → CaCl2 (aq) + 2H2O (l) CaO (s) + 2HCl (aq) →CaCl2 (aq) + H2O (l), ΔH = - 186kJ CaO (s) + H2O (l) →Ca (OH) 2 (aq), ΔH =

1. Calculate the end velocity of a rocket that traveled 16km in 2 seconds. distance time 2. Calculate the rockets acceleration m with a start velocity of 0m/s and the end velocity from #1 for 10 seconds.

How are linear and nonlinear graphs alike