Which of the following is the best name for MgCl2

A microscope that uses light and more than one lens

If you could fit 2.5 equal potatoes across the pan in one direction and 5 of the same potatoes in the other direction, how big are the potatoes?

Which equation shows a conservation of mass? a) H2 O → H2 + O2 b) Ag + Cl2 → AgCl c) CaCO3 → CaO + CO2 d) KClO3 → KCl + O2

At a maximum level of loudness, the power output of a 75-piece orchestra radiated as the sound is 70.0 W. What is the intensity of these sound waves to a listener who is sitting 25.0 m from the orchestra?

Is the momentum of a car traveling south always the same as the momentum of a car traveling north at the same speed? Explain.

What is the purpose of a valve?

A particle travels 15 times around a 10-cm radius circle in 42 seconds. what is the average speed (in m/s) of the particle?

Where are the magnetic fields stronger near a bar magnet? A) Top B) Center C) Ends D) Bottom

You pull a simple pendulum of length 0.225m to the side through an angle of 3.50∘ and release it. Part A How much time does it take the pendulum bob to reach its highest speed? Take free fall acceleration to be 9.80 m/s^2.

What is the velocity of a wave having a frequency of 25 Hz and a wavelength of 10m