What is the molar mass of magnesium nitride (mg3n2) if the molar mass of magnesium is 24.31g and nitrogen is 14.01g?

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units:

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2