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AnnZ [28]
2 years ago
5

Never heat organic solvents with a bunsen burner. Explain.

SAT
2 answers:
lapo4ka [179]2 years ago
6 0

Answer:

Potentially flammable.

Explanation:

You should add activated carbon to a cool solution then heat the mixture to boiling rather than add the carbon to the boiling solution.

hope this helped

Flura [38]2 years ago
3 0

Answer:

Potentially flammable.

Explanation:

You should add activated carbon to a cool solution then heat the mixture to boiling rather than add the carbon to the boiling solutions

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Match each fossil with the layer where it’ll be present based on those conditions.
elena-s [515]

The correct matches are:

Birds - A

Dinosaurs - B

Amphibians - C

Corals - D

Trilobites - E

By the statements presented, we have the situation where the trilobites are the oldest of the species, thus they will be on the bottom layer. The corals are second ones that emerged, so they will be found in the second bottom layer, and after them come the amphibians that will be found in the third layer. The dinosaurs evolved after the amphibians, so since they are younger than them, they will be located in the second layer from the top, with the birds evolving from the later dinosaurs and being the youngest, they will be found in the top layer.

6 0
3 years ago
In what chapter did sal meet Margreat
drek231 [11]

Answer: Chapter 3: Bravery.

Explanation: Sal begins the story with her first moments in Lewiston. She overhears Margaret pleading with her father to tell Sal how they met, but Sal rudely refuses to hear the story. Sal marches glumly through their new house, situated only a few blocks from Margaret's, complaining about its size.

8 0
2 years ago
A child riding a bicycle at 15 m/s accelerates at 3. 0 m/s/s for 4. 0 s. What is the child's speed at the end of this 4. 0 s int
mamaluj [8]

Answer:

The final speed of bicycle would be <u>27 m/s</u>².

Step-by-step explanation:

<u>Given</u> :

  • \small\red\bull Initial velocity (u) = 15 m/s
  • \small\red\bull Acceleration (a) = 3.0 m/s²
  • \small\red\bull Time = 4 seconds

<u>To</u><u> </u><u>Find</u> :

  • \small\red\bull Final velocity (v)

<u>Using</u><u> </u><u>Formula</u> :

\longrightarrow{\pmb{\sf{v = u + at}}}

  • \small\blue\star v = final velocity
  • \small\blue\star u = initial velocity
  • \small\blue\star a = acceleration
  • \small\blue\star t = time taken

<u>Solution</u> :

Substituting the values in the formula to find the final velocity :

\longrightarrow{\sf{v = u + at}}

\longrightarrow{\sf{v = 15 + (3.0 \times 4)}}

\longrightarrow{\sf{v = 15 + (3 \times 4)}}

\longrightarrow{\sf{v = 15 +(12)}}

\longrightarrow{\sf{v = 15 +12}}

\longrightarrow{\sf{v = 27 \:  {m/s}^{2}}}

\star{\underline{\boxed{\red{\sf{v = 27 \:  {m/s}^{2}}}}}}

Hence, the final speed of bicycle would be 27 m/s².

\rule{300}{1.5}

3 0
2 years ago
True or false Through Earth's history, rock strata have piled up and become highly folded along mid-ocean ridges
taurus [48]

That statement is true.

8 0
3 years ago
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Which of the following values of x satisfy the equationbegin equation . . . 2 times x raised to the second power, plus 7 times x
nata0808 [166]
So the equation is 2x^2 + 7x + 3 = 0, let’s factor this out: 2x^2 + 6x + x + 3 = 0, so 2x(x+3) + 1(x+3) = 0, so (2x+1)(x+3)=0, so x = -1/2 or -3
3 0
3 years ago
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