Identify each number that is given is scientific notation

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

Endeleev saw trends in the physical and chemical properties of elements when he organized them by

Determine the reaction and balance the following equations urgent due in the morning