How much CaCl2, in grams, is needed to make 2.0 L of a 3.5M solution?

A scale is used to measure: mass weight volume density

In a sedimentary rock, small rounded particles indicate a A) long distance and long travel time. B) long distance and short travel time. C) short distance and long travel time. D) short distance and short travel time

Why do you always see only one side of the moon from the earth? A. the moon does not rotate B. the moon takes longer to rotate than to revolve around the earth C. the moon takes less time to rotate than to revolve around the earth D.

You are taking a walk in the woods. You come upon a butterfly with coloring and other features you have not seen before. You want to find out its scientific name so you can tell your friends and family about it, and they can look it up.

16. Which element has th17. Magnesium, Mg, tends to form a + 2 ion. Which will have the larger atomic radius? Mg or Mg2 + (Explain why) e greater electronegativity: fluorine or lithium? What does this mean?

A balloon has a volume of 10,500 liters and the tempature is 15 C. If the temp tire were - 25C what would the volume of the balloon be? A-12,194L B - 9,042L

What types of star can explode in a supernova

Which graph best shows the relationship between kelvin temperature and average kinetic energy?

Can matter exist at a temperature below absolute zero? Why or why not?

When group 17 elements become ions they have a charge of?