What are some chemical changes that happen at school, home, nature

In the "Design a Thermos" lab, the temperature of the thermos was compared with a container that was not insulated. What was the purpose of that container? A That container was the independent variable.

Determine whether each compound is soluble or insoluble. If the compound is soluble, list the ions present in solution. AgNO3 Pb (C2H3O2) 2 KNO3 (NH4) 2S

For an ideal gas, classify the following pairs of properties as directly or inversely proportional.

If an atom can form more than one cation, the cation with the lowest charge ends with which set of letters? A. - ic B. - ide C. - ate D. - ous

A chemical reaction is most likely to occur when the colliding particles have the proper

Cracks in rocks chemical or mechanical

A large boulder falls from an underwater ledge and crashes on the floor of the ocean. A pod of dolphins is 800 meters away. Determine how long it takes for the sound of the crash to reach the dolphins. A) 0.5 sec B) 0.3 sec C) 2.3 sec D) 1.9 sec

Given 4.80g of ammonium carbonate, find: Number of moles of the compound Number of moles of ammonium ions Number of moles of carbonate ions Number of moles of hydrogen atoms Number of hydrogen atoms

The density of water is 1.0 g/cm3 will rubbing alcohol float with a density of 0.81 g/cm3

Write an equation that shows the formation of the phosphide ion from a neutral phosphorus atom.