The half-life of carbon-14 is 5730 years. Explain how to figure out the age of a substance that has 25% carbon-14 remaining.

What directly influences deep water currents

2. As the caisson is pushed deeper underwater, the air pressure in the caisson rises to 26.1 psi. Since it is 1869, the caisson is illuminated using flame. At the beginning of the shift, the temperature in the caisson was 91oF.

An empty 250 milliliter beaker has a mass of 60 grams. When 100 milliliters of oil is added to the beaker, the total mass is 140 grams. the density of the oil is approimately

What factors are considered to be stresses on an equilibrium system?

Consider the reaction: HCl (aq) + NaOH (aq) → NaOH (aq) + H2O (l) How much 0.113 M NaOH solution will completely neutralize 1.25 L of 0.228 M HCl solution?

What is the percent composition of sulfur compound that contains 20.8 g carbon and 54.4 g sulfur?

Which of the following is an example of heat transfer by conduction? A. The upstairs of a house being warmer than the downstairs B. Burning your finger on a hot match C. The sun warming your skin D. Being warmed by a fire on a cold night

How much did John save in his 401 (k) in the 2014 tax year?

Explain why the chemical released from the injured fish may not cause in a wa why the chemical released from the injured fish may not cause in alarm response in other fish species

hat historical figure was responsible for developing the system for categorizing living things that is still used today? A) Sir Isaac Newton B) Carolus Linnaeus C) Benjamin Franklin D) Galileo