In a dilution, solvent is added to a given amount of a concentrated solution. What happened to the total concentration?

Which of these is a drawback of mining

The decomposition reaction is: (a.) A+B - - > AB (b.) AB+CD--> A+B (d.) none of the above

Suppose a reaction was run that produces hydrogen gas and a sample of H2 (g) collected. As a result of the collection 145 ml of water is displaced.

Metal rusting is an example of a chemical change true or false

Which sentence describes a tropical rainforest? A. it is mostly composed of deciduous trees B. it has a dry period C. it contains few animal species D. it is always wet

A box experiences a 20 N force to the left and a 19 N frictional force to the right. (A) Will accelerate to the left (B) Will accelerate to the right (C) Will not accelerate

Which family on the periodic table is least likely to enter into chemical reactions? 1 2 17 18

Use scientific notation to express 3.76 mg in grams

Forces can be added together only if they are?

Who placed all the elements in the right place according to their properties