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tankabanditka [31]
3 years ago
7

I need help plzzzz science homework

Chemistry
1 answer:
fiasKO [112]3 years ago
5 0
Wait, do we do both of the places or only the types of elements because i don't understand...
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Answer:

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Explanation:

3 0
3 years ago
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18.A 2.50 L sample of dry air in a cylinder exerts a pressure of
Vlada [557]

Answer:

\boxed{\text{7.50 L}}

Explanation:

The temperature and amount of gas are constant, so we can use Boyle’s Law.

p_{1}V_{1} = p_{2}V_{2}

Data:

\begin{array}{rclrcl}p_{1}& =& \text{3.00 atm}\qquad & V_{1} &= & \text{2.50 L} \\p_{2}& =& \text{1.00 atm}\qquad & V_{2} &= & ?\\\end{array}

Calculations:

\begin{array}{rcl}3.00 \times 2.50 & =& 1.00V_{2}\\7.500 & = & 1.00V_{2}\\V_{2} & = &\textbf{7.50 L}\\\end{array}\\\text{The volume of the gas is } \boxed{\textbf{7.50 L}}

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3 years ago
The retina is a photosensitive tissue that contains the special photoreceptor cells. What is the purpose of these photoreceptor
RideAnS [48]
I am also taking the test, but I think it's C. But I'm not exactly sure
5 0
4 years ago
Debbie and Ben are performing a frog dissection in their biology class. As a safety precaution, Debbie and Ben must do all of th
Radda [10]

D is the correct answer, you do not want to keep the fumes from numerous frogs in a room. There is no logical reason to keep the fumes inside.

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4 years ago
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If a person can run 10 km in 2 hours, what is the person’s speed? Include your work with your answer
Ivanshal [37]
Speed = Distance / Time
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s = 5 Km/h

In short, Your Answer would be 5 Km/h

Hope this helps!
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3 years ago
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