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

The sun emits radiation, which reaches the Earth

A solid substance was tested in the laboratory. The test results are listed below. • dissolves in water • is an electrolyte • melts at a high temperature Based on these results, the solid substance could be (1) Cu (3) C (2) CuBr2 (4) C6H12O6

What is required before using a respirator? A. nothing B. proper training C. survey of the work area D. users guide

A balloon has a volume of 2.5 L and contains 0.100 moles of Helium. Another balloon has a volume of 5.0 L. They are at the same temperature and pressure. How many moles of gas does the second balloon contain?

Your teacher has asked you to perform an experiment to see if the shape of objects alone, affects the motion of objects Which of the following would be the best experiment to perform? OA Apply the same amount of force to balls of different masses.

Being able to identify good source of scientific information and apply the knowledge to problems in your life is a part of having A Scientific hypothesis B Scientific inquiry C Scientific literacy D Scientific laws

The label on a bottle of shampoo lists many ingredients, such as water, sodium laureth sulfate, lauramide dea, sodium chloride, etc. from this information, shampoo is best classified as

In this unbalanced reaction, which atom is oxidized? hno3 + hbr → no + br2 + h2o

Which of these types of electromagnetic radiation has the lowest energy?

Explain the processes of convergence and divergence