Which of the following changes will always be true for a spontaneous reaction?

+deltaG

+deltaS

-deltaG

-deltaH

How many neutrons are in 7.00 g of 13c?

Suppose a powerful battery is connected between a pair of inert graphite electrodes dipped into a pot of molten zinc chloride (see sketch at right).

Which 5 body systems work together during digestion?

The animal kingdom is large and diverse. Scientists discover new species all the time, and they need a way to classify them. The science of classification is called taxonomy.

Do baboons have a large brain?

A spoonful of salt is stirred into a pot of water. The salt is a

What are some catchy projects titles for the question, "What liquids cause the most tooth decay?"

Show that the speed of an electron in the nth bohr orbit of hydrogen is αc/n, where α is the fine structure constant. what would be the speed in a hydrogen-like atom with a nuclear charge of ze?

Most modern forms of transportation are powered by fossil fuels. Carbon dioxide, methane, carbon monoxide, and other gases are released into the atmosphere during the production and combustion of these fuels.

Does the reaction of a burning candle give off or absorb heat