The density of gold is 19.3 g/cm3. What is the mass of 15cm3 of gold?

Why are very high temperatures and pressures required for fusion to occur? to generate the neutrons that are needed to break the nuclei to overcome the repulsion between the protons in the nuclei that join to maintain the proper conditions to keep

Based on its chemical makeup, where do you think amazonite is found?

Jan propped up a graham cracker in a shallow bowl. She then set up an electric fan to blow on the graham cracker at three different speeds what is jans dependent variable in his experiment

If 420 joules of heat energy is added to 25 grams of water at 25 degrees celcius, what will be the final temperature of the water, in Celcius degrees?

One advantage of asexual reproduction is

The week of Feb. 29, 2016, PBS aired a documentary on sending humans halfway to space in the late 1950's using balloons. They filled different balloons with different gases - some with H2 and some with He. Which balloon should go higher? Why?

What form of energy provides power for a gas stove? A. nuclear energy B. electrical energy C. chemical energy D. sound energy Can you explain the answer for me?

Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 12.0 ft*15.0 ft*8.60ft.

A certain ore is 34.4% nickel by mass. How many kilograms of this ore would need to dig up to have 30.0g of nickel?

Are the chemical reactions that take place when a battery connected endothermic or exothermic