Which of the following best defines an acid?

An acid has a pH of 7.

An acid has hydroxide ions.

O An acid has fewer positive ions in solution.

An acid has more hydrogen ions in solution.

If 7.25 kJ of heat is applied to a 980 gram block of metal and the temperature started at 25C and finished at 36 C. What is the specific heat of the metal in J/g C

2ft 3in + 5ft 11in what is the answer

How does changing the amount of one substance affect a mixtures identity and a compounds identity iscience?

Which of the two aqueous solutions will be a better conductor of electricity in the following examples? Explain why in each case. a) 1.0M NaCl vs. 0.010 M Nacl b) 0.10 M NaCl vs. 0.10 M Al2 (SO4) 3 (assume complete dissociation of both salts). c) 1.

For which of the following solutions would an increase in pressure result in an increase in solubility of a solute? gas liquid solid gases, liquids and solids

Is a sample of liquid nitrogen more dense than a sample of nitrogen gas

You have a balloon containing 1 L of air at STP in a vacuum chamber. What will the volume of the balloon be when you reduce the pressure by half and increase the temperature to 373 K?

Which method will correctly determine whether the forces on an object are balanced or unbalanced? A. Multiply the forces in the horizontal direction by the forces in the vertical direction. B.

Carbon is found in all known forms of life. Which statement best describes why carbon is uniquely suited to forming macromolecules such as those found in living organisms? A. Carbon forms large compounds that are not chemically reactive. B.

Name a type of asteroid and give a description.