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lilavasa [31]
4 years ago
7

ONLY 3 QUESTIONS

Chemistry
1 answer:
jarptica [38.1K]4 years ago
7 0
A. The hydrogen molecule has a structural formal that looks like this: H—H. The oxygen molecule has a structural formula that looks like this: O=O (except you should make the lines longer). When you combine the molecules, it has a structural formula that looks like this:  
                                                            O
                                                          /     \
                                                        H      H

b. O=C=O (again, make the lines a little longer)

c. space-filling model of hydrogen looks like this oo (circles should be touching) and the space-filling model of carbon dioxide should look like this OoO (circles should be touching)

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Which statement describes J.J. Thomson’s plum-pudding model of the atom?
ra1l [238]
Option C: the electrons are embedded in a positive sphere.

As we know that was a wrong model and nowadays the electrons are considered to be around the nucleus, in regions called orbitals.
4 0
4 years ago
Need help please omg Perform each of the following conversions being sure to set up the appropriate conversion factor in each ca
sertanlavr [38]

Answer:

The answer to your question is:

a) 31.75 cm

b) 0.475 miles

c) 2.44 yards

d) 11496.04 inches

Explanation:

Convert

a)           12.5 in to cm

         1 in ------------------- 2.54 cm

       12.5 in ----------------    x

            x = 12.5(2.54)/1 = 31.75/ = 31.75 cm

b)          2513 ft to miles

           1 mile -------------- 5280 ft

           x miles ------------ 2513 ft

        x = 2513(1)/5280 = 0.475 miles

c) 2.23 m to yards

              1 m -------------   1,094 yards

            2.23 m ----------     x

       x= 2.23x1.094/1 = 2.44 yards

d)  292 m to inches

            1 m ---------------- 39.37 inches

          292 m -------------     x

    x = 292 x 39.37/1 = 11496.04 inches

6 0
3 years ago
IF CORRECT YOU WILL GET BRAINLIEST
Scorpion4ik [409]

Answer:

C 5 mol A; 6 mol B

Explanation:

eto po answer ko sana makatulong

3 0
3 years ago
Read 2 more answers
When matter changes into new of different substance
IgorLugansk [536]
I don’t know jsnshanhs shznjs
5 0
4 years ago
How many grams of a 14.0% (w/w) sugar solution contain 62.5<br> of sugar?
Delicious77 [7]

Answer:

m_{solution}=446.4g

Explanation:

Hello,

In this case, by-mass percent is computed in terms of the mass of the solute and the mass of the solvent as shown below:

\% m=\frac{m_{solute}}{m_{solution}} *100\%

Thus, solving for the mass of the solution, we obtain:

\frac{x}{y} m_{solution}=\frac{m_{solute}}{\% m}*100\%\\ \\m_{solution}=\frac{62.5g}{14.0\%}*100\% \\\\m_{solution}=446.4g

Regards.

3 0
3 years ago
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