How can you calculate the number of electrons in an atom

Which of the following correctly arranges the planets by the size of their diameter in increasing order?

Write the abbreviation for each of the following units: meter, kilometer, centimeter, millimeter, micrometer. What is the mathematical relationship between these units?

What is the difference between frequency and speed?

A net force of 500N acts on a 100 kg cart what is the acceleration

Explain the law of conservation of mass. When wood burns, it releases heat and turns into ashes. When the ashes are weighed, they are significantly lower than that of the wood. How is this possible in terms of the law of conservation of mass?

Which condition is a neuron in when the outside of the neuron has a net positive charge and the inside has a net negative charge?. Threshold. Action potential. Resting potential

Use combustion by moving pistons which respond to a change in pressure

If q1 is 2μC, q2 is 5μC and r1 = 0.2m, then the force between the charges is

On a weather map places that have the same temperature are joined with lines called

Which of the following generally speed up a reaction? A. increasing the activation energy B. removing any catalysts C. adding more heat D. shaking the container holding the reaction