How many electrons are in a nickel ion that has an atomic number of 28 and a positive charge of 2?

Name 8 examples of Convection.

Do sponges have of appendages jointed, not Jointed, or absent

How much force is required to accelerate a 5 kg mass at 20m / s2?

Using the graph above, explain what happened on the amount carbon in the atmosphere 1960 to 2020.

What are the five senses that we use to make observations in Science?

Which statement describes how light behaves when it strikes a translucent material? A. Light is scattered. B. Light is transmitted. C. Light is reflected. D. Light is absorbed.

A certain gas is present in a 15.0 l cylinder at 2.0 atm pressure. if the pressure is increased to 4.0 atm the volume of the gas decreases to 7.5 l.

Choose all the answers that apply. To qualify as a planet, a celestial object must: have an irregular shape revolve around the sun orbit in a clear area have enough gravity to have a spherical shape have a satellite

Oxygen makes up the largest part of living cells at 65%. What is the percentage of the second-most abundant element in living cells?

Acceleration is defined as the rate of change for which of the following? A. time B. velocity C. position D. displacement