Who discovered that geologic changes are cyclical?

1Na2+1Hcl---> 1Nacl+1h2s balanced

How could you verify that you produced carbon dioxide in your combustion reaction? 2. what indication did you have that nh3 was produced in your decomposition reaction?

What will be the formula and electron dot structure of cyclopentane?

1 Chemical property of lanthanum

Whats the vocabulary for aquatic biomes

You start with 100 grams of zinc how many moles of hydrogen will be produced

What will an atom do if it has 1 to 3 valence electrons

What is milk best described as? solution, suspension, compound, or colloid?

In any chemical reaction, the quantities that are conserved are ... A. mass and moles. B. the number of molecules and the volumes. C. the number of moles and the volumes. D. mass and number of atoms.

How many neutrons does element X have if its atomic number is 39 and its mass number is 75?