What is the approximate mass of a proton?

(1) 1 u

(2) 0.0005 u

(3) 1 g

(4) 0.0005 g

What is the relationship between law of conservation and chemical reaction?

In the compound k[co (c2o4) 2 (h2o) 2] (where c2o42 - = oxalate) the oxidation number and coordination number of cobalt are, respectively

List two examples of solids, liquids, and gases

8. Stephen performed an experiment to see how listening to music affects a student's test scores. He had Group A listen to music and Group B listen to no music while studying.

What are the uses of crude oil?

Substance which allows energy to pass through it

How are insect wings not likely to be fossilized?

True or False: A Solar eclipse occurs when Earth casts a shadow on the Moon.

Compared to a phosphorus atom, a P3 - ion has (1) more electrons and a larger radius (2) more electrons and a smaller radius (3) fewer electrons and a larger radius (4) fewer electrons and a smaller radius

1. Crystals of ammonium chloride, NH4Cl, seem to disappear when mixed with water. The resulting clear liquid containing ammonium chloride and water is a A) compound. B) new substance. C) homogeneous mixture. D) heterogeneous mixture. 2.