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White raven [17]
3 years ago
11

Please help me with this

Chemistry
2 answers:
faust18 [17]3 years ago
7 0
I think it is 10x+9 this would be good
Lady bird [3.3K]3 years ago
4 0
10cm*12cm=120cm^2
8cm*10cm=80cm^2
80/2= 40 cm^2
120+40= 160cm^2
It’s 160cm^2
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If a 250.0 mL sealed plastic bag starts out at a temperature of 19.0 °C and after sitting in the sun reaches a temperature of 60
Marizza181 [45]

Answer:

D

Explanation:

If the pressure remains constant then the temperature and Volume are all that you have to consider.

Givens

T1 = 19oC = 19 + 273 = 292o K

T2 = 60oC = 60 + 273 = 333oK

V1 = 250 mL

V2 = x

Formula

V1/T1 = V2/T2

250/292 = x/333                

Solution.

The solves rather neatly.  Multiplly both sides by 333

250*333 / 292 = 333 *x / 333

Do the multiplication

250 * 333 / 292 = x

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Divide by 292

x = 285.1 mL

The answer is D

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