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sergeinik [125]
3 years ago
11

What should we do to increase energy efficiency ?

Chemistry
1 answer:
4vir4ik [10]3 years ago
5 0

Answer:

Insulate your loft.

Upgrade your boiler

Hang thick curtains and insulate your doors.

Watch your energy consumption.

Switch to a cheaper energy tariff.

Use a water-saving showerhead.

Fit double glazing.

Explanation:

Some Help

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Which of the following is not a base? <br><br> A: NH3<br> B. NaOH<br> C. H3C6H5O7<br> D. KOH
olga2289 [7]
I think that C is the answer.....
7 0
3 years ago
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To find the number of neutrons in a atom, you subtract the number of_____ from the mass number.
Slav-nsk [51]

You can simply subtract the atomic number from the mass number in order to find the number of neutrons.

8 0
2 years ago
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Calculate the volume of carbon dioxide and water vapour produced and the volume of oxygen remaining, when 20.0 dm3 of propane re
laiz [17]

Answer:

80cm3 of water, and 60cm3 carbon IV oxide is formed while 20cm3 of oxygen is left unreacted.

Explanation:

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6 0
3 years ago
Give 7 and example of how each wave in the EM spectrum in used in our daily lives
bogdanovich [222]
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2. airplanes are guided by radar waves,
3.the tv is used by electromagnetic waves
4. they are used in heaters,
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8 0
3 years ago
How many tons of zinc can be obtained from 976 tons of zinc ore that is 78.0% zinc carbonate?
kramer
First, calculating the amount of zinc carbonate by multiplying the given mass of the ore by the percent zinc carbonate. 
                          mass of zinc carbonate = (976 tons)(0.78) 
                                                       = 761.28 tons
Then, calculate for %Zn in zinc carbonate
                           %Zn = ((65.38) / (125.39)) x 100%
                                          % Zn = 52.141%
tons of Zn from the sample,
                           mass of Zn = (761.28 tons)(0.52141)
                                              = 396.94 tons Zn
6 0
3 years ago
Read 2 more answers
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