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SIZIF [17.4K]
3 years ago
8

Which most accurately describes the universe as we currently describe it?

Chemistry
1 answer:
weeeeeb [17]3 years ago
4 0

Answer: The universe consists of all physical objects on earth in space

Explanation:

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A pipe leaks water at a rate of 1.24 mL/s. What is the rate of the water leak in L/hr?
Umnica [9.8K]

Answer:

b)4.46 L/hr

Explanation:

To solve this question we need to convert the mL to liters (Using the conversion of 1000mL = 1L) and convert the time from seconds to hours (3600s = 1hr)

<em>mL to L:</em>

1.24mL/s * (1L / 1000mL) = 0.00124L/s

<em>seconds to hours:</em>

0.00124L/s * (3600s / 1hr) = 4.46L/hr

Right answer is:

<h3>b)4.46 L/hr </h3>

3 0
3 years ago
Why are some alkali metals stored under oil?
Dahasolnce [82]

due to there reactive rate?

6 0
3 years ago
Read 2 more answers
You have 34.1 x 1023 molecules of O2. How many moles of O2 do you have? Fill in the grid. Then, solve the problem and answer the
denis-greek [22]

Number of moles = 5.7 moles of oxygen.

<u>Explanation:</u>

We have to convert number of molecules into number of moles by dividing the number of molecules by Avogadro's number.

Here number of molecules of oxygen given is 34.1 × 10²³ molecules.

Now we have to divide the number of molecules by Avogadro's number as,

Number of moles = $\frac{number of molecules}{Avogadro's number}

                            = $\frac{34.1}{6.022} \times \frac{10^{23} }{10^{23} }

                          = 5.7 moles

So here molecules is converted into moles.

5 0
4 years ago
What must be true for a circuit to light a bulb?
anygoal [31]
Power source (battery/energy) a copper/metal wire, and then a receiver
5 0
3 years ago
Read 2 more answers
A/An ___ is an area where grounded ater naturally comes to the earth's surface.
Igoryamba

Answer:

A Spring is an area where groundwater naturally comes to the earth's surface.

Explanation:

hope this helps :)

6 0
3 years ago
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