What is the definition of a chemical change?

A compound differs from a mixture in that a compound always has a? 1. homogeneous composition 2. maximum of two components 3. minimum of three components 4. heterogeneous composition

Which statement I true for photosynthesis? A. Producers use it B. Consumers use it C. Scavengers use it D. Decomposers use it

Why does a reaction slow down wit time

Why does Earthquakes occur?

How many atoms of each element are in Copper Sulfate (CuSO4) ? Name the elements and the number of atoms for each element.

Based on what you read on the Marie Curie and the Science of Radioactivity website, name the scientists who shared the Nobel Prize in Physics in 1903 and describe their contributions that were recognized by the award.

What does aluminum hydroxide and calcium sulfate produce

Balnce the following molecular equation and write net ionic equation NaOH+H2SO4-Na2SO4+H2

Describe in words the reaction represented by the equation and include a description of the composition of each kind of molecule 2h2+02=2h20

Potassium chloride, kcl, sodium sulfate, na2so4, glucose, c6h12o6, carbon dioxide, co2 and ammonium phosphate, (nh4) 3po4, are soluble in water.