If barium (metal) has two valence electrons while chlorine (nonmetal) has seven, how many barium atoms are needed to form an ionic bond with chlorine?

Use the periodic table to find the atomic weight for tin (Sn). 50 119 170

Find the mass of 250.0mL of benezene. The density of benezene is 0.8765 g/mL

What compounds are classified as electrolytes?

Compare the data on the atomic radius graph for elements 3 through 10 with the data for elements 11 through 13. a. How are they similar? b. How are they different?

Is the tendency of copper to turn green when exposed to air chemical or physical property?

Transport means to move something from one place to another. True False

What are two reasons that ocean water sinks in the Arctic Ocean? A. The surface water is warmer and less salty than normal. B. The surface water is warmer and more salty than normal. C. The surface water is colder and less salty than normal. D.

Which statement best describes the conductivity of weak electrolytes, such as weak acids and bases? A) Weak electrolytes do not dissolve in water and can not conduct electricity.

Two speakers are placed side by side and are described as having constructive interference. How do you know when constructive interference of sound waves has occurred?

Write about "human impact"