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jolli1 [7]
3 years ago
13

PLEASE HELPPP!!!!!!!!!!!!!!!!!!!!

Chemistry
2 answers:
riadik2000 [5.3K]3 years ago
6 0
Similarities. very useful
differences. coal is a pullutant. while womd is not. i guess
arlik [135]3 years ago
4 0
Similarities: both natural differences: the work differently
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5 0
3 years ago
Hello! I just need a little bit of help. I'm supposed to design an experiment on how reaction rates are determined and affected
alexandr1967 [171]
  1. Get 3 cups of water at the exact same temperature, using the thermometer to check.
  2. Label the cups as ‘whole’, ‘pieces’, and ‘crushed’
  3. Next, get something to dissolve, in this case, polident. Take one of the polident tablets and break it into 4 pieces, and set it aside.
  4. Take another polident tablet and this time put it into a different cup, and crush it. Set it aside.
  5. Keep the last tablet whole.
  6. Set up your stopwatch and drop the polident tablet that is whole in the cup labeled ‘whole’, starting the stopwatch at the same time.
  7. Watch the cup and see when the tablet is fully dissolved, then stop the stopwatch.
  8. Record the time in the table.
  9. Repeat steps 6-8 for both the ‘pieces’ and ‘crushed’ tablets.

Hope this helps! Please let me know if you need more help, or if you think my answer is incorrect. Brainliest would be MUCH appreciated. Have a great day!

Stay Brainy!

−xXheyoXx

3 0
2 years ago
How many liters of a 2.0 M solution of HCl do you need to have 8.0 moles of HCI?
kakasveta [241]

Answer:

1M HCl: add 1mol/12M = 83 ml conc. HCl to 1L of water or 8.3ml to 100ml.

2M HCl: add 2mol/12M = 167 ml conc. HCl to 1L of water or 16.7ml to 100ml.

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3 years ago
Which is not a property of a pure substance?
mr Goodwill [35]

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Which of these pairs of elements is most likely to be part of a polyatomic ion?
Mrrafil [7]
S and O would be on a polyatomic ion as I know of
3 0
4 years ago
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