How would you explain the difference between an element and an atom?

False: The highest oxidation state for hydrogen in this reaction is 0 False: The oxidation state of chromium in dichromate is 3. False: The iron half-reaction takes place in an acidic solution. True: The oxidation state of oxygen does not change.

If 155 grams of potassium (K) reacts with 122 grams of potassium nitrate (KNO3), what is the limiting reagent?

When should you start taking Collagen

You have a new box of breakfast cereal that contains cereal bits and fluffy marshmallows bits. your brother shakes the box and then pours himself a bowl of marshmallows bits, leaving you with a bowl of only cereal bits.

Which is a characteristic of nuclear fusion? produces radioactive waste involves the collision of two nuclei commonly used by humans as an energy source requires very little activation energy

Why are gasses elements on the periodic table?

The gravitational force between two objects is 100 N If the mass of each object is doubled, what is the gravitational force between the objects at the same distance? a:25 N b:50 N c:200 N d:0400 N

Acid charge Perchloric acid ion

Write the concentration equilibrium constant expression for this reaction. 2cui (s) + i2 (aq) → 2cu+2 (aq) + 4i - (aq)

Chlorine gas has a pressure of 1.05 atm at 25°C. What pressure will it exert at 75°C?