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oksian1 [2.3K]
3 years ago
7

Which of the following is an example of a way you can reduce personal consumption of resources?

Chemistry
1 answer:
dsp733 years ago
4 0

Answer:

B. using efficient light bulbs

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Which one is idk what it is giving brainliest
Salsk061 [2.6K]

Answer:

B or C

Explanation:

I don't really know sorry.

8 0
3 years ago
Read 2 more answers
3. A leaky faucet drips at the rate of 300 mL per hour. How many liters will drip in a
ki77a [65]

Answer:

Hence , in a century<u> 0.342 liters</u> of the liquid will drip.

Explanation:

The rate of the flow of the liquid droplet is given by:

Rate=\frac{Volume}{time}

Rate=\frac{mL}{hr}

<u>Unit conversion:</u>

We need to change mL/hr into Liter/century

1 L = 1000 mL (given)

1 mL = 0.001 L......(1)

1 century = 100 year

1 year = 365 days

So, 1 century = 100 x 365 days = 36500 days

1 day = 24 hrs

So , 36500 days = 36500 x 24 hr = 876000 hr

Hence ,

1 century = 36500 days = 876000 hr

we are not asked to calculate the answer in days

1 century = 876000 hr

1 hr = 1/ 876000 century

1 hr =1.141\times 10^{-6}.....(2)

From (1) and (2) put the value in the given formula:

This is for 1 mL/hr to 1 L/century

Rate=\frac{mL}{hr}

Rate=\frac{0.001\ L}{1.141\times 10^{-6}century}

Rate=1.141\times 10^{-3}L/century

Now for 300 mL/hr . the rate will be more , multiply the answer by 300

Rate=300\times 1.141\times 10^{-3}L/century

Rate = 0.342 Liters / century

Hence , in a century 0.342 liters of the liquid will drip.

7 0
4 years ago
Read 2 more answers
How many moles of pcl5 can be produced from 23.0 g of p4 (and excess cl2)? express your answer to three significant figures and
NeX [460]
Balance Chemical equation is,

                                         P₄  +  10 Cl₂   →   4 PCl₅

According to Balance Equation,

            123.89 g (1 mole) of P₄ reacts to produce   =   4 Moles of PCl₅
Then,
    23 g of P₄ will react with excess Cl₂ to produce   =   X moles of PCl₅

Solving for X,
                                      X  =  (4 mol × 23 g) ÷ 123.89 g

                                      X  =  0.742 g of PCl₅
Result:
           
When 23 g of P₄ is reacted with excess Cl₂, 0.742 g of PCl₅ is produced.
4 0
4 years ago
If 2.68 g of benzaldehyde are involved with the mixed aldol condensation reaction, how many moles of benzaldehyde are present? R
Zielflug [23.3K]

Answer:

The number of moles of benzaldehyde = 0.0253 moles

Explanation:

The molecular formula of benzaldehyde is C₇H₆O

Its molecular mass is calculated from the atomic masses of the constituent atoms.

C = 12.0 g: H = 1.0 g; O = 16.0 g

Molecular mass = ( 12 * 7) + (1 * 6) + (16 * 1) = 106.0 g/mol

Number of moles of  substance = mass of substance/ molar mass of the substance

mass of benzaldehyde = 2.68; molar mass = 106.0 g/mol

Number of moles of benzaldehyde = 2.68 g/ 106 g/mol = 0.0253 moles

Therefore, the number of moles of benzaldehyde = 0.0253 moles

8 0
3 years ago
Which of the following can be used to indicate which direction heat transfer will flow between two
Gre4nikov [31]

Answer:

the answer is potential energy

Explanation:

6 0
3 years ago
Read 2 more answers
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