NaF + A.
Br2
NaBr
+
F2
Na=
F=
Na=
F=
1. Use equation A to choose the correct coefficients from the answers below:
a. 2,1,2,1
b. 3,2,1,1
c. 1,2,2,1
d. 2,3,1,1
2. Use Equation A to identify the type of reaction:
a. Synthesis
b. Decomposition
c. Single Displacement
d. Double Displacement
B.
K +
Cl2
КСІ
K=
CI=
K=
CI=
3. Use equation B to choose the correct coefficients from the answers below:
a. 3,1,2
b. 2,1,3
c. 2,1,2
d. 1,2,1

Why is retrograde motion an apparent motion

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ