Which of these is a conversion from chemical energy to mechanical energy?

A. A dark light bulb starting to glow

B. A ball rolling down a hill

C. A person lifting a weight

D. A potato being heated in an oven

When an acid and base neutralize each other what is made a. CO2 b. CH4 c. neutral salt water

How many nearest neighbors does each silicon atom have in solid si?

How many molecules of CO2 will be produced by the decomposition of 24.9 mol of Ca (HCO3) 2 in the following reaction: Ca (HCO3) 2 = > CaO (s) + 2CO2 (g) + H2O (g).

Calculate the number of moles in 2.4g of carbon

Vinegar is a solution of acetic acid in water. If certain vinegar has a concentration of 1.5% v / v. -How much acetic acid is there in 1050 mils of vinegar? - how many liters corresponds to 1050 mils?

The weighted average atomic mass of an element depends upon the a. relative abundance of protons in the element b. mass and relative abundance of each isotope of that element c. mass and relative abundance of each neutron of that element d.

What part of an atom do we change for isotopes

The Safe Drinking Water Act (SDWA) sets a limit for mercury-a toxin to the central nervous system-at 0.002 mg/L. Water suppliers must periodically test their water to ensure that mercury levels do not exceed 0.002 mg/L.

The smallest unit of an element is a blank

How many sodium atoms will create an ionic bond with sulfur?