What does burning bread in a toaster demonstrate? (a) Energy can create a change. (b) Energy can cause motion. (c) A toaster creates its own energy. (d) A toaster is needed to burn bread.

How does caesium react with oxygen

If u were sitting in a boat as 6 meter waves passed by, how many seconds would pass between them

How do the interactions that are broken in water when it is boiled compare with those broken when water is electrolyzed? Boiling water breaks intermolecular attractions and electrolysis breaks covalent bonds.

An atom of boron has an atomic number of 5 and an atomic mass of 11. The atom contains 5 protons, 6 electrons, and 5 neutrons. 11 protons, 11 electrons, and 5 neutrons. 5 protons, 5 electrons, and 6 neutrons. 11 protons, 6 electrons, and 6 neutrons.

Which of these represents an accurate mass description for the following reaction? 2H2 + O2 → 2H2O Answer choices: mass before reaction = 36 amu; after reaction = 36 amu MBR = 12 MAR = 36 MBR = 18 MAR = 36 MBR = 36 MAR = 18

The data below were collected for the following reaction at 500 ∘C: CH3CN (g) →CH3NC (g) Time (h) [CH3CN] (M) 0.0 1.000 5.0 0.794 10.0 0.631 15.0 0.501 20.0 0.398 25.0 0.

How do i convert 3.00 moles H2 to molecules?

How can you use the chemical formulas for sucrose (C6H, 20,) and rust (Fe, O,) to classity them ionic or molecular compounds?

What is true of energy as is passes through an ecosystem? a. All of the energy in an organism is used by the animal that eats it. b. Any stored energy in an organism is used by the animal that eats it. c.

Which can associate a suspect and the firing of a gun? (its not b) A) markings on the gun's exterior B) markings on the casing C) markings on the bullet D) powder residues