PLEASE HELPPPP!!! IM BEING TIMED

Chemistry

2 answers:

Mrac [35]3 years ago

8 0

Answer:

Explanation:

This should be the correct answer, lmk if it's not

zvonat [6]3 years ago

6 0

Answer:

I believe D is the correct answer

Explanation:

I am doing the same test right now and this was the answer on mine

You might be interested in

.<br> In what way is kinetic energy present in a solar oven

Afina-wow [57]

Answer:

Energy of motion is called

6 0

4 years ago

The depictions of ionic compounds do not show distinct compound units but rather a collection of ions in the ratio given by the

Sedaia [141]

Answer:

The ionic compound NaCl has a Face Centered Cubic unit cell

The site for atoms are Face, center and Edges corner.

Effective number of atoms

Na+

1centers + 12edges x $\frac{1}{4}$ = 4 Na+

Cl-

6face x $\frac{1}{2}$ + $\frac{1}{8}$ x8 corners = 4Cl-

This is just one unit cell effective atom, there are thousand's of such unit cells are combined to form one such structure of NaCl. The real formula of NaCl is Na4Cl4 but for simplicity we use empirical formula that is NaCl.

4 0

3 years ago

Consider the combustion reaction for octane (C8H18), which is a primary component of gasoline.

lesya692 [45]

Answer:

$n_{CO_2}=1.93 gCO_2$

Explanation:

Hello,

In this case, considering the given chemical reaction, we can use the molar mass of octane (114.23 g/mol) and the 2:16 molar ratio with carbon dioxide to compute the emitted moles of CO2 to the atmosphere via the following stoichiometric procedure:

$n_{CO2}=27.6gC_8H_{18}*\frac{1molC_8H_{18}}{114.23gC_8H_{18}} *\frac{16molCO_2}{2molC_8H_{18}} \\\\n_{CO_2}=1.93 gCO_2$