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Art [367]
3 years ago
15

Which lab equipment tool would you use to measure exactly 4 ml of water​

Chemistry
1 answer:
11Alexandr11 [23.1K]3 years ago
4 0
You would use a Graduated Cylinder
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5.40 g B determine the number of atoms
sdas [7]
Atomic mass Boron ( B ) = 10.811 u.m.a

10.811 g -------------- 6.02x10²³ atoms
5.40 g ----------------- ?? atoms

5.40 x ( 6.02x10²³) / 10.811 =

3.0069x10²³ atoms
4 0
3 years ago
The isotope 208Tl undergoes β decay with a half-life of 3.1 min.
melamori03 [73]

Answer:

a. Pb 208

b. About 21.7 minutes

c. only a trace amount

Explanation:

It under goes beta decay.

There should be virtually nothing after an hour

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3 years ago
Do birds with longer or shorter wings fly faster? Write a hypothesis
konstantin123 [22]
<span>I believe that birds with longer wings will fly faster as longer wings will allow the birds to push away more air and create more force allowing them to move at a greater velocity. I believe that wing length is one of the greatest determinants in overall speed for a flying species of animal.</span>
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3 years ago
Structures of compounds people use every day are shown. From which group of unsaturated hydrocarbons is each derived? 2 carbons
Savatey [412]

The group of unsaturated hydrocarbons which 2 carbons are double bonded together, with H bonded to the left, and C H 2 bonded below left, above right, and below right is derived from <u>Alkenes</u>

<h3>What are organic compounds?</h3>

Organic compounds are compounds which contains carbon and hydrogen

Some few classes or organic compounds or hydrocarbons are as follows:

  • Alkanes
  • Alkenes
  • Alkynes
  • Alkanols
  • Alkanoic acid
  • Ketones
  • Esters

So therefore, the group of unsaturated hydrocarbons which 2 carbons are double bonded together, with H bonded to the left, and C H 2 bonded below left, above right, and below right is derived from <u>Alkenes</u>

Learn more about organic compounds:

brainly.com/question/1594044

#SPJ1

3 0
2 years ago
What happens when grapes get fermented
ValentinkaMS [17]
When grapes become fermented, they turn into wine. 
6 0
3 years ago
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