Mixture bubbles and a gas emitted is that physical or chemical change

Why was the bite mark evidence so important in the Bundy case? If the case happened today, do you think investigators would have more information to work with?

The reactiveness of nonmetals depends on the atom's ability to what?

What are some of the problems with using flame tests as a way to identify substances?

How many moles are there in 2.6 x 10^24 atoms of Calcium? a. 7.0 x 10-24 moles of Ca b. 4.4 moles c. 168.36 moles d ...10 moles

What is the term for the number of protons in the nucleus of each atom of an element? it also indicates the number of electrons in the atom?

According to the second law of thermodynamics, the entropy of any system always increases. According to the second law of thermodynamics, the entropy of any system always increases. True False

If the density of Cu is 8.96g/cm cubed, what is the volume of 28kg of Cu?

A piece of iron can change in different ways. How is iron bending different from iron rusting?

Which organism would least likely be selectively bred A) Dandelions B) Nantes Carrots C) Belgian Blue Cattle D) Hypoallergenic Cats

You are given a clear solution of KNO3. Using 3-4 sentences explain how you would determine if the solution is unsaturated, saturated, or supersaturated