If an atom has 12 protons, 13 neutrons, and 10 electrons, what is its mass number?

In some species of plants, mutations can cause a plant to have different patterns on their leaves, such as gold edges or white stripes. Plants with different patterns grow to the same size and produce offspring with similar patterns.

The gas absorbed by ocean water which can moderate a potential greenhouse effect is: O2 CO2 He2 N2

Concentrated hydrochloric acid has a molarity of 6.0 M. How many mL of HCI must be used to make 500.0 mL of 2.0 M Hydrochloric acid?

When a match is lit, sulfur (S8) reacts with oxygen to release energy and form sulfur dioxide, SO2. Write the balanced equation for this reaction.

How are minute and seconds are related to degrees

What is the enthalpy of combustion (per mole) of C3 H8 (g) ?

Describe how speed, velocity and acceleration are related?

What is 3 ethyl 3, 4 dimethylheptane abbreviated structural formula?

What kind of energy can be transferred

What could a scientist do to determine what era the Eocene period belongs to on the geologic timescale?