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NNADVOKAT [17]
3 years ago
11

Choose the correct coefficients (in order) needed to balance this reaction:

Chemistry
1 answer:
zhannawk [14.2K]3 years ago
6 0

Answer:

The answer is <u>1</u>C4H12 + <u>7</u>O2 -> <u>4</u>CO2 + <u>6</u>H20.

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What is the percentage error of length measurement of 0.229cm if the correct value is 0.225cm
Mars2501 [29]

Percent error is the difference between the measured and known value, divided by the known value, multiplied by 100%.

So first, we take our measured value, .299 cm, minus our known value, .225 cm.

.299 cm - .225 cm=.004 cm

Next, we divide that by our known value

\frac{.004}{.225}=.0177777778

Finally, multiply your answer by 100

.0177777778 x 100= 1.77777778 %

Round to three significant figures, and you're done.

=1.78 % error



5 0
3 years ago
Read 2 more answers
_Mg+_O2=_MgO<br> Balance out this reaction above
Ira Lisetskai [31]
2 Mg + 1 O2 = 2 MgO.
8 0
2 years ago
Make sure to show your answer using correct units and sig figs. (all of the
allochka39001 [22]

Answer:

1. 84g.mol`¹

2. 342g.mol`¹

3 0
3 years ago
How does an embryo develop from a fertilized egg?]
faltersainse [42]

Answer: Hope this helps

<h3>Explanation: <u><em>The fertilized egg zygote divides repeatedly as it moves down the fallopian tube to the uterus. First, the zygote becomes a solid ball of cells. ... Inside the uterus, the blastocyst implants in the wall of the uterus, where it develops into an embryo attached to a placenta and surrounded by fluid-filled membranes.</em></u></h3><h3><u><em /></u></h3>
6 0
3 years ago
If 85.0 L of helium at 29.0°C is compressed to 32.0 L at constant pressure, what is the new temperature?
Feliz [49]

Answer:

113.69°k

Explanation:

V1=85L of helium                         V2=32L

T1= 29°C +273= 302°K                 T2=?

     T2=<u>TIV2</u>

              V1

    T2=<u>(302)(32)</u>= <u>9664</u>

                85           85

    T2=  113.69°K

3 0
3 years ago
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