Matter materials made of only one kind of atom is called:

A) matter

B) element

C) compound

How many moles of nitrogen are needed to completely convert 6.34 mol of hydrogen?

A thesis is closest in meaning to a (n) A. Implication B. Contention C. Statistic

Does dilution reduce the amount of conductivity?

Which of these elements is a halogen? potassium (K) calcium (Ca) vanadium (V) gallium (Ga) bromine (Br)

Calculate the amount of energy (in kJ) to convert 337 grams of liquid water from 0 degrees celsius to water vapor at 177 degrees celsius.

When metals combine with nonmetals the metallic atoms tend to

Which type of bond forms between water molecules? a. strong bond b. hydrogen bond c. covalent bond d. polar bond

Down syndrome is caused by the presence of an extra copy of chromosome 21. how would a karyotype identify a person with down syndrome? a) ID physical characteristics of someone with the disease.

Which expression is a measurement of denisty

Compare the information provided by a molecules chemical formula to the information provided by its structural formula