How many aluminium atoms are in 145 mg of aluminum

Find the mass in grams of 2.00*1023 molecules of C10H140

Which branch of Earth science is most closely related to a study about the benefits of wind turbines for energy production? geology meteorology oceanography environmental science

Based on the equation below, how many grams of nitrogen gas (N2) will be produced from the decomposition of one mole of sodium azide (NaN3) ? Use a molar mass of 28.0 grams for nitrogen gas (N2). 2NaN3 → 2Na + 3N2 A. 56.0 grams B. 42.0 grams C. 28.

How many moles of silver atoms are there in 1.8 x 10 20 atoms of silver?

A car moves with an average speed of 45 miles/hour. How long does the car take to travel 90 miles? OA. 2 minutes OB. 2 hours C. 45 minutes OD. 45 hours 90 minutes

Which process occurs at the anode in an electrochemical cell? (1) the loss of protons (2) the loss of electrons (3) the gain of protons (4) the gain of electrons

What is natural transmutation?

An electron in a sodium atom gains enough energy to move from the second shell to the third the sodium atom becomes

What is temperature in science, how fast molecules move or how cold or hot something is?

Which describes an object's speed when free falling in a vacuum? The object accelerates until it reaches its terminal velocity. The object falls at a constant speed because only one force acts on it.