Many insulating materials contain spaces filled with air because air is what type of material?

A can of soda has 35 mg of sodium in it. how many grams of sodium is this?

You have a 0.850 M NaCl solution. What is the concentration of NaCl in mass percent? (The density of this solution is 1.05 g/mL).

Which of the following describes a Brønsted-Lowry base?

What is the total displacement of the car after 5 h? A. 40km B. 15km C. 0km D. 20km

An animals body is powered by: A. The energy stored In the chemical bonds of the food it eats B. The kinetic energy of the food it eats C. The work it does on its food D. The kinetic energy of the environment

Balance the following reaction. Leave the box empty if no other coefficient is needed. C2H5 + O2 → CO2 + H2O

What three human body systems coordinate cause an arm to move

Which statement does NOT apply to Alkenes? They readily react They have double bonds They are more stable than alkanes They are unsaturated

Why do scientists say that this technology will not harm fish in the area?

What is the primary cause of global wind patterns on earth?