91影视

Question: Write the formulas of the following compounds:

(a) barium chloride

(b) magnesium nitride

(c) sulfur dioxide

(d) nitrogen trichloride

(e) dinitrogen trioxide

(f) tin(IV) chloride

Each of the following compounds contains a metal that can exhibit more than one ionic charge. Name these compounds:

a. Cr₂O₃

b. FeCl₂

c. CrO₃

d. TiCl₄

e.CoO

f. MoS₂

Each of the following compounds contains a metal that can exhibit more than one ionic charge. Name these compounds:

a. NiCO₃

b. MoO₃

c.Co(NO₃)₂

d. V₂O₅

e. MnO₂

f. Fe₂O₃

The following compounds are found in common household products. Write the formulas for each compound:

a. Potassium Phosphate

b. Copper (II) sulfate

c. Calcium Chloride

d. Titanium (IV) Dioxide

e. Ammonium nitrate

f. Sodium bisulfate (thecommon name for sodium hydrogen sulfate)

The existence of isotopes violates one of the original ideas of Dalton鈥檚 atomic theory. Which one?

The following compounds are found in common household products. Name each of these compounds:

a. Ca(H₃PO₄)₂

b. FeSO₄

c. CaCO₃

d. MgO

e. NaNO₂

f. KI

What are the IUPAC names of the following compounds?

1. Manganese dioxide
2. Mercurous chloride (Hg₂Cl₂)
3. Ferric nitrate [Fe(NO₃)₃]
4. Titanium Tetrachloride
5. Cupric bromide (CuBr₂)

How are electrons and protons similar? How are they different?

How are protons and neutrons similar? How are they different?

Predict and test the behavior of 伪 particles fired at a 鈥減lum pudding鈥� model atom.

(a) Predict the paths taken by 伪 particles that are fired at atoms with a Thomson鈥檚 plum pudding model structure. Explain why you expect the 伪 particles to take these paths.

(b) If 伪 particles of higher energy than those in (a) are fired at plum pudding atoms, predict how their paths will differ from the lower-energy 伪 particle paths. Explain your reasoning.

(c) Now test your predictions from (a) and (b). Open the Rutherford Scattering simulation (http://openstaxcollege.org/l/16PhetScatter) and select the 鈥淧lum Pudding Atom鈥� tab. Set 鈥淎lpha Particles Energy鈥� to 鈥渕in,鈥� and select 鈥渟how traces.鈥� Click on the gun to start firing 伪 particles. Does this match your prediction from (a)? If not, explain why the actual path would be that shown in the simulation. Hit the pause button, or 鈥淩eset All.鈥� Set 鈥淎lpha Particles Energy鈥� to 鈥渕ax,鈥� and start firing 伪 particles. Does this match your prediction from (b)? If not, explain the effect of increased energy on the actual paths as shown in the simulation.