A chemical Chand occurs when a piece of wood? A. split b. is painted C. decays D. is cut

Earth's oceans absorb carbon dioxide emitted by humans and other animals, and eventually turn it into carbonate rocks. Which "spheres" are part of this process? Select all that apply. A. biosphere B. exosphere C. geosphere D. cryosphere E.

In which of the following is the symbol for the ion and the number of electrons it contains given correctly? A. S+^2; 18 electrons B. K+; 18 electrons C. I+; 54 electrons D. B+3; 8 electrons

Calculate the osmotic pressure of a 0.237m aqueous solution of sucrose, c12h22o11, at 37 degrees celsius

4Na + O2 - -> 2Na20 If 4 moles of Na react completely, how many moles of Na2O form?

The slow destruction of a metal through its reaction with oxygen in the air is called

Which organelles are unique to plant cells? chloroplasts mitochondria vacuoles nuclei

An atom that has 13 protons and 15 neutrons is an isotope of the element? How can I count it?

Which element is nuclear fusion least likely to produce? hydrogen, which has an approximate mass of 1 chlorine, which has an approximate mass of 35 argon, which has an approximate mass of 39 silicon, which has an approximate mass of 28 I know the

How deep does the surface current known as the Gulf Stream go A. 3,000 meters B. 3 meters C. 300 meters

What characteristics of a planet determine the strength of its gravitational force on other objects? A. diameter of the planet and its location in space B. the number of moons that the planet has C.