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MAVERICK [17]
3 years ago
7

A model glider has a mass of 1 kg. How much potential energy does it have 2

Chemistry
1 answer:
sesenic [268]3 years ago
7 0
Hi! In many exam questions, they usually inform you on which number to use for the acceleration due to gravity. Its actual value is 9.80214 ms^(-2) however some exam questions ask you to use 9.8 or even 10...so I did both just for the extra help. Hope this helps!

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Carbon tetrafluoride (CF4) is a potent greenhouse gas. Draw a Lewis dot structure for this compound, explain the drawing, and pr
otez555 [7]

Refer to the attachment

6 0
3 years ago
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a weather balloon contains 8.80 moles of helium at a ppressure of 0.992 atm and a temperature os 25 C at ground level. What is t
djverab [1.8K]
We can use the ideal gas law equation to find the volume of the balloon.
PV = nRT 
where 
P - pressure - 0.992 atm x 101 325 Pa/atm = 100 514 Pa
V - volume 
n - number of moles - 8.80 mol 
R - universal gas constant  - 8.314 Jmol⁻¹K⁻¹
T - temperature in kelvin - 25 °C + 273 = 298 K
Substituting these values in the equation 
100 514 Pa x V = 8.80 mol x  8.314 Jmol⁻¹K⁻¹ x 298 K
V = 217 L
volume of balloon is 217 L
7 0
3 years ago
You removed a Coke can from the refrigerator. When you come back a few minutes later, you realize the can has begun to "sweat".
Vinvika [58]

Answer:

B

Explanation:

8 0
3 years ago
Which statement best describes the compressibility of a gas?
maria [59]

The answer to the question stated above is:
<span> Gas is easily compressible because the molecules of a gas are much further apart than those of a solid.</span>


characteristic properties of gases:

(1) they are easy to compress,

(2) they expand to fill their containers, and

(3) they occupy far more space than the liquids or solids from which they form.

7 0
3 years ago
write a balanced equation to determine the molarity of the HCI solution when a 24.6 ml sample of HCI reacts with a 33.0 mL of 0.
MatroZZZ [7]

Answer: 0.30 M

Explanation:

HCl+NaOH\rightarrow NaCl+H_2O

According to the neutralization law,

n_1M_1V_1=n_2M_2V_2

where,

M_1 = molarity of HCl solution = ?

V_1 = volume of HCl solution = 24.6 ml

M_2 = molarity of NaOH solution = 0.222 M

V_2 = volume of NaOH solution = 33.0 ml

n_1 = valency of HCl = 21

n_2 = valency of NaOH = 1

1\times M_1\times 24.6=1\times 0.222\times 33.0

M_1=0.30M

Therefore, the molarity of the HCI solution is 0.30 M

5 0
3 years ago
Read 2 more answers
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