Groups, or families, in the periodic table have what in common? a. physical properties b. chemical properties c. the same number of neutrons d. the same number of electrons

Is the dissolution of ammonium chloride in water an exothermic or endothermic process.

Which statement best explains how isotopes can have different masses and still be the same element?

A heterogeneous material may be

The atoms in a sample are close together but can slide past one another. As the atoms lose energy, they move slower. The atoms become locked in place because of attractive forces between themwhich change of state is taking place?

Which substance below has the greatest mass? 1 mole of silver 1 mole of copper 1 mole of lead 1 mol of tungsten

How many vowels does the word love have

What is silicon used for? -matches -gunpowder -glass -steel can coating

A intramuscular medication is given at 5.00mg/kg of body weight. What is the dose in grams for a 180-lb patient?

Nuclear fusion is the source of energy for stars. Besides hydrogen, which other element is most likely also common in stars?

Since the early 2000s, careers in the field of genetics have grown at a rapid pace. Which of these is a probable cause for this explosion of available and expanding jobs?