Which electron configuration represents the electrons of an atom in an excited state?

(1) 2-8-1 (3) 2-8-17-6 (2) 2-8-6 (4) 2-8-18-5

g The solution you created in this simulation was a 0.300M NH4Cl solution. The lab also stated that, in g/L, this concentration was 16.0 g/L. Show the calculations that prove that to be true.

Which statement best describes how chemical equations demonstrate conservation of mass? The number of reactants is the same as the number of products, OB. The compounds are the same on each side of the reaction c.

Calcium sulfide forms when calcium loses 2 valence electrons to sulfur. What type of a bond is formed? Select one of the options below as your answer: A) covalent B) ionic

Name the following chemical compound. be (no3) 2

3. Firefighters' uniform is coated with a plastic that is fire resistant. Identify the plastic from the given options. a. Teflon b. Melamine c. PET d. Polyester

How can an atom be electrically neutral when it contains particles that are charged?

Is boiling water considered physical or chemical bond

Which of the following is the correct scientific notation for 0.000451 g? 4.5 x 10-3 4.5 x 10-5 4.51 x 10-4 45.1 x 10-4

A phase change from a solid to a gas is called what

What is hydrocarbon?