11. What's the atomic number of lodine?

Where does geothermal energy come from? A. sunlight B. the oceans C. the land D. inside Earth E. wind

Clarify the compounds as strong acid or weak acid HNO3, H2SO4, H2CO3, HCl, HF

Phospholipids are made up of how many fatty acid chains

Convert 25 liters to millileters and put answer in scientific notation

A 50 kg cart has 324 kg•m/s of momentum. How fast is the cart going?

What is true about the energy involved in a chemical reaction? A. The amount of energy is constant, but it is converted from one form to another. B. The amount of energy decreases as it is converted from one form to another. C.

Which state of matter is highly compressible, is made of particles moving independently of each other, and is present in large quantities near Earth's surface?

The air in an inflated balloon (the system) absorbs 125 J of heat from its proximity to a fire. The balloon expands and does 85 kJ of work. What is the change in internal energy (in kJ) (ΔU) for the system? Round to the nearest whole number.

Is a cytoplasm made of 80 percent of water

Calculate the acid concentration of a sample of acid rain with a ph of 4.20