An ion of an element has 42 protons 44 neutrons and 43 electrons. What is it's charge and how did you make that determination?

A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car. A) 3.5 m s2 B) 5.7 m s2 C) 20 m s2 D) 70 m s2

Are diatomic compounds ionic or covalent?

At a certain harbor, the tides cause the ocean surface to rise and fall a distance d (from highest level to lowest level) in simple harmonic motion, with a period of 12.8 h. How long does it take for the water to fall a distance 0.

The word oogenesis refers to

Which is a harmful role of bacteria of bacteria?

If you are going 30 miles an hour in good condition, it will take how many feet to stop.

Name of group to which hydrogen belongs to

Which would increase the reaction rate? Check all that apply. A. Raising the temperature B. Stirring the reaction C. Raising the activation energy D. Adding a catalyst

How much of the electrical energy transformed by a common light bulb becomes heat energy?

What is the current for a 1200W microwave connected to 110V outlet.