Which substance is a source of hydrocarbons? A. natural gas B. protein C. silk D. starch E. water

What is equal to 1ML

Suppose a cell is placed in a solution with a high concentration of potassium and no sodium. how would the cellular sodium-potassium pump function in this environment?

If an ion of an element is smaller than an atom of the same element then the ion has what charge?

A compound is tested by dipping a wire loop in a solution of the compound and holding it at the edge of a Bunsen flame. What name is given to this type of test

Which componeVentricles pump blood out of the heart. Which types of vessels will be the first to contact the blood from the ventricles? arteries atria capillaries veins nt of blood allows oxygen from the air to move from the lungs to cells

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.

4. A bird left its post and flew in a triangular path. It flew 21 yards south, 72 yards east and 75 yards diagonally to end back at the post. Is it a right triangle?

Condension occurs in the inside of your windows in Winters, why?

How can you use Hess's law to determine a reaction's enthalpy?

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?