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Brums [2.3K]
2 years ago
8

Can y’all please help me

Chemistry
1 answer:
lys-0071 [83]2 years ago
3 0

Answer The earth is not flat

Explanation:cuz

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How hot, in degrees Celsius, would the air inside the balloon have to get in order for the balloon to lift off the ground? Assum
SVETLANKA909090 [29]

Answer:

The temperature in degress Celsius is 52.25°C

Explanation:

According the equation:

V(\rho _{a}  -\rho _{t})g=mg\\\rho _{a}  -\rho _{t}=\frac{n}{V} =\frac{340}{2950} =0.115kg/m^{3}

\rho _{t}=\rho _{a}  -0.115=1.2-0.115=1.085kg/m^{3}

The temperature is:

T=\frac{P}{\rho _{t} R} =\frac{1.013x10^{5} }{1.085*287.05} =325.25K=52.25°C

3 0
3 years ago
H2(g)+I2(s)→HI(s)H2(g)+I2(s)→HI(s) balance equations
poizon [28]

Answer:

H2(g)+I2(s)→2HI(s)

Explanation:

Hello there!

In this case, according to the given information and unbalanced chemical reaction, we infer it must be balanced in agreement with the law of conservation of mass because the reactants side has two hydrogen and iodine atoms whereas the products side has just one. In such a way, by placing a 2 on HI, we obtain the following balanced reaction:

H2(g)+I2(s)→2HI(s)

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3 years ago
How many moles of solute are contained in 200 milliliters of a 1 M solution?
lorasvet [3.4K]
The answer is (2) 0.2. The unit of M means 1 mol/L. The conversion of liter and milliliter is 1 liter equals 1000 milliliters. So the molar number of solute is 1*0.2=0.2 mol.
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3 years ago
Which of the atoms below are least likely to violate the octet rule?
Levart [38]

Answer:

F i think i pretty sure F!!!!!!!!

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An organic fertiliser in which plants are ploughed back into the soil​
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It was called MANURE

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Its a type of fertilizer which plant are ploughed back into the soil.

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3 years ago
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