How many moles of MgCl2 are there in 329 g of the compound?

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A mother pushes a baby stroller 10 meters by applying 40 newtons of force. how much work was done?

Which statement is true? Gravity is the force of attraction between two objects with mass and is dependent on the distance between these objects. Gravity is the force that repels two objects that have opposite charges.

Which of the following is an example of a pure substance? A. a sample of oxygen gas B. a solution of sugar water c. a mixture of pasta and sauce D. an alloy of iron and carbon

I drop a quarter from a 2 story house. It takes 1.85 to hit the ground. what was the velocity

Name three elements that are good conductors of heat

A ball is thrown upward with an initial velocity of 48 ft/sec from a height 640ft. It's height h, in feet, after t seconds is given by h (t) = - 16t^2 + 48t+640.

You slide a slab of dielectric between the plates of a parallel-plate capacitor. As you do this, the potential difference between the plates remains constant.

Heat transfer between two substances that are in contact is called

What is the principles of electric motor

A tow truck has a weight of 10,350 N. What is the mass of the tow truck?