An element is identified by:

A. Its number of protons

B. the atomic mass

C. The type of charge

D. its number of isotopes

After a rain a puddle of water remains on a sidewalk after a day o sunshine the puddle is gone which process is most responsible for the disappearance of the puddle

Na2SO4+Ba (NO3) 2-> Complete and balance the following reaction

What structural units make up metallic solids? O A. Molecules O B. Nonmetal atoms O c. lons O D. Metal atoms

What was the Liquid Drop Model?

Which of the following molecules is responsible for transmitting the energy needed by cells

Zinc phosphide, Zn3P2, is often used as a rat poison. Phosphorus has 5 valence electrons. How many valence electrons does each zinc atom lose?

Nonrenewable resources are?

Watch the animation, then check off the samples that will conduct electricity. Check all that apply. View Available Hint (s) Check all that apply. NaCl solution Solid NaCl Solid sugar Sugar solution

Burning wood represents a chemical change. True or False?

Why are phosphates in laundry detergent