What scientist uses a metric ruler

Condition required for nuclear fusion in the sun?

Which of the following is a chemical reaction? 1-Painting a wall blue 2-A bicycle rusting 3-Ice cream melting 4-Making a sand castle

In ionic bonds what happens to electrons A: nonmetals donate electrons to metals B: nonmetals share electrons C: metals donate electrons to non metals

Determine the volume of carbon dioxide gas produced at STP when 2.5 g of nitroglycerin decomposes by this balanced equation. 4C3H5N3O9 (l) → 12CO2 (g) + 10H2O (g) + 6N2 (g) + O2 (g)

AN atoms nucleus contains it's protons and electrons true or false

You transfer a sample of a gas at 17°C from a volume of 5.67 L and 1.10 atm to a container at 37°C that has a pressure of 1.10 atm. What is the new volume of the gas?

What is true about the energy involved in a chemical reaction? A. The amount of energy is constant, but it is converted from one form to another. B. The amount of energy decreases as it is converted from one form to another. C.

Which state of matter is highly compressible, is made of particles moving independently of each other, and is present in large quantities near Earth's surface?

The air in an inflated balloon (the system) absorbs 125 J of heat from its proximity to a fire. The balloon expands and does 85 kJ of work. What is the change in internal energy (in kJ) (ΔU) for the system? Round to the nearest whole number.

Is a cytoplasm made of 80 percent of water