The speed of light is used to determine the length of a light-year. About how far does light travel in one second? A. 30 km B. 3,000 km C. 30,000 km D. 300,000 km

What is the answer to (2.0e3) (3.42e-2) with proper significant figures?

What is the volume of 16g of oxygen gas at STP?

Energy cannot be created or destroyed. Therefore, in order to provide electric energy for a portable laptop, voltaic cells need to be stored in hot places so that they can absorb and convert heat into electrical energy while plugged into the laptop.

According to Charles's law, under which conditions will the volume of a given amount of gas be proportional to temperature

What happens to the concentration of the reactants and products during the course of a forward chemical reaction

Which of the following is true about a scientific hypothesis? A. The hypothesis must form a scientific theory. B. The hypothesis must be testable. C. The hypothesis must predict the outcome of the experiment. D.

Convert 1.76 um to inches

Why is lewis electron-dot diagrams more suitable than electron-shell diagrams illustrating chemical bonds

What mass of sodium benzoate should be added to 150.0 ml of a 0.15 m benzoic acid solution in order to obtain a buffer with a ph of 4.25? (assume no volume change.) ?

Match the term with its definition. A. Bed load A strip of land next to a river that is often very fertile B. Headwater The beginning of a river C. Suspended load Large boulders carried along by a river D.