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Evgen [1.6K]
3 years ago
15

QUESTION TWO

Chemistry
1 answer:
igomit [66]3 years ago
3 0

Answer: The scientific method is an empirical method of acquiring knowledge that has characterized the development of science since at least the 17th century. It involves careful observation, applying rigorous skepticism about what is observed, given that cognitive assumptions can distort how one interprets the observation.

Explanation:

Hope this helps. :)

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How many carbons are present in the hydrocarbon 3-ethyl-2,3,4-trimethylpentane
fiasKO [112]
I would say there is 10 (2 in the ethyl group, 3 in the three methyl groups and 5 in the pent chain)
4 0
3 years ago
An eighth-grade teacher has asked you to present information to her students about how watching television can affect adolescent
sashaice [31]

Answer:

Adverse effect.

Explanation:

Watching television can greatly affect academics and behavior of adolescents. Watching television affect the academic performance of adolescents. The possible negative health effects of television viewing on children and adolescents are violent or aggressive behavior by watching violent films, increase sexual activity, increase in weight, poor body image. Watching more television waste time as well as decreased school performance. The adolescents stay away from physical activities such as sports and outdoor games.

8 0
3 years ago
A balloon with a volume of 38.2 L at 91 psi is allowed to expand into a larger can with a total volume of 77.4 L. What is the pr
adelina 88 [10]

Answer:

  • <u>45 psi</u>

Explanation:

<u>1) Data:</u>

a) V₁ = 38.2 liter

b) P₁ = 91 psi

c) V₂ = 77.4 liter

d) P₂ = ?

<u>2) Formula:</u>

According to Boyle's law, at constant temperature, the pressure and volume of a fixed amount of gas are inversely related:

  • PV = constant ⇒P₁V₁ = P₂V₂

<u>3) Solution:</u>

  • Solve for the unknown: P₂ = P₁V₁ /v₂

  • Substitute the values: V₂ = 91 psi × 38.2 liter / 77.4 liter = 44.9 9si ≈ 45 psi.
7 0
4 years ago
Do you think that every substance can be separated physically or chemically into other substances? Explain your answer.
Olegator [25]

Answer:

Chemical Substances

It cannot be separated into components without breaking chemical bonds. Chemical substances can be solids, liquids, gases, or plasma. Changes in temperature or pressure can cause substances to shift between the different phases of matter.

Explanation:

Hope this helps.

Brainliest plz? i need 5 more.

6 0
3 years ago
Read 2 more answers
What is the correct formula for the
erastova [34]

Answer:

A

Explanation:

cause its easy

3 0
3 years ago
Read 2 more answers
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