When bases are in solution with water, they are known as: a. acids b. alkalis c. sols d. ionic bases

in water, bases form a. hydroxide ions. b. hydrogen ions. c. hydrogen gas. d. oxide ions. '

neutralization is a reaction between a(n) a. acid and a base. b. acid and a metal. c. base and a salt. d. salt and water.

you can find the ph of a substance by using a. plain paper. b. a thermometer. c. litmus indicator. d. a conductivity tester.

In an experiment, how can i change human errors? be specific.

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?