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dedylja [7]
3 years ago
8

BRAINLIESTTT ASAP!!! PLEASE HELP ME :)

Chemistry
2 answers:
sergeinik [125]3 years ago
8 0

Communication and Interview Skills. Interviews are often the cornerstone of any investigation. ...

Control Emotions. Investigators must be able to control their emotions. ...

Honesty and Ethics. ...

Technical Skills and Knowledge.

Hope this is the answer :(:

Ahat [919]3 years ago
6 0

Every science experiment should follow the basic principles of proper investigation so that the results presented at the end are seen as credible.

Observation and Hypothesis. ...

Prediction and Modeling. ...

Testing and Error Estimation. ...

Result Gathering and Presentation. ...

Conclusions. ...

Law Formation.

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What are 5 of the critical events in evolution that occurred in the Paleozoic era?!!
soldi70 [24.7K]

Answer:

Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian

Explanation:

These all occurred in the paleozoic Era I hope you do great good luck <3

5 0
2 years ago
If the mass of 293nv is 293.10 amu and that of 295nv is 295.45 amu , what is the atomic weight of nv?
ycow [4]

Answer;

294.13 amu

Solution;

-293nv is 293.10 amu and that of 295nv is 295.45 amu

293.05+295.2=588.25

588.25/2= 294.13 amu

an amu of 294.13 using significant figures

3 0
3 years ago
What is the name of the functional group that is attached to this hydrocarbon?
igor_vitrenko [27]

Answer:

ketone

Explanation:

8 0
2 years ago
A student has a balloon with a volume of 2.5 liters that contains 4.0 moles of air. The ballon has a small leak, allowing one mo
Over [174]

Answer:

1.9 L

Explanation:

Step 1: Given data

  • Initial number of moles of air (n₁): 4.0 mol
  • Initial volume of the balloon (V₁): 2.5 L
  • Final number of moles of air (n₂): 3.0 mol
  • Final volume of the balloon (V₂): ?

Step 2: Calculate the final volume of the balloon

According to Avogadro's law, the volume of an ideal gas is directly proportional to the number of moles. We can calculate the final volume of the balloon using the following expression.

V₁ / n₁ = V₂ / n₂

V₂ = V₁ × n₂ / n₁

V₂ = 2.5 L × 3.0 mol / 4.0 mol

V₂ = 1.9 L

6 0
2 years ago
A phase change from a solid to a gas is called what
Molodets [167]

Answer:

sublimation

Explanation:

6 0
3 years ago
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