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e-lub [12.9K]
2 years ago
12

ALSO NEED THIS ANSWERED PRETTY SOON I THINK IK WHAT IT IS BUT NOT SURE HELP!

Chemistry
2 answers:
Montano1993 [528]2 years ago
4 0
It’s b. Just helped a lesson on this a couple weeks ago. It’s B because you’re using your muscular to pick up the pencil and your nervous system sends signals to your brain to send signals back to your arm to lift and grab the pencil
Illusion [34]2 years ago
3 0

Answer:

I think it's B but I could be wrong so really sorry if I am

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Both white phosphorus and red phosphorus are made up only of phosphorus atoms.Does this mean they are both pure substances? Coul
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True, both of the red and white phosphorus is a pure substance.

Both red and white phosphorus is made of phosphor element but they have a different structure which causes them to have a different color. This phenomenon called allotropes when a chemical element has two or more different form.They are not compounds as they are only made of phosphorus. A compound should be made by at least two different elements.
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Explain in 2-4 sentences what the difference between climate and weather is
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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
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