Ahydrogen atom has a diameter of about 10nm
(a) express this diameter in meter
(b) express this diameter in millimeter
(c) express this diameter in micrometer
show working if you can.
i'm in high school, i don't know why it says i'm a middle schooler.

*drag each tile to the correct location in the sequence* the table shows chronological events in the life of our sun, a medium-sized star. place the missing events into the correct rows of the table.

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air