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expeople1 [14]
3 years ago
8

Intrutrusive rocks are formed when magma is squeezed in between other rocks true or false

Chemistry
1 answer:
Iteru [2.4K]3 years ago
5 0

Answer:

I think the correct answer for this is False.

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The two isotopes of chlorine are 3517Cl and 3717Cl. Which isotope is the most abundant?
nikklg [1K]

Answer:

  • The most abundant isotope is ³⁵Cl₁₇.
  • Since the average atomic mass of Cl is 35.45 g/mole, so the most abundant one is that one near this number, ³⁵Cl₁₇.
  • ³⁵Cl₁₇ is found by 75 % and ³⁷Cl₁₇ is found by 25 % by a ratio 3:1.

6 0
3 years ago
How many grams of KOH do we need to make 250.0ml of a 0.75 M
ZanzabumX [31]

Answer:

10.52g KOH

Explanation:

250.0 ml X 1L/1000ml X 0.75 mol KOH/1L X 56.105gKOH/1 mol KOH =10.52g KOH

5 0
3 years ago
1.
dedylja [7]

Answer:

It looked like the continents fit together like puzzle pieces

Could I Maybee get brainlest if someone else answers?

7 0
2 years ago
A sample contains 16. 75 g of the radioisotope U-236 and 50. 25 g of its daughter isotope, Th-232. How long did it take for deca
garri49 [273]

The time taken for the isotope to decay is 46 million years.

We'll begin by calculating the number of half-lives that has elapsed. This can be obtained as follow:

  • Original amount (N₀) = 50.25 g
  • Amount remaining (N) = 16.75
  • Number of half-lives (n) =?

2ⁿ = N₀ / N

2ⁿ = N₀ / N

2ⁿ = 50.25 / 16.75

2ⁿ = 3

Take the log of both side

Log 2ⁿ = 3

nLog 2 = Log 3

Divide both side by log 2

n = Log 3 / Log 2

n = 2

Finally, we shall determine the time.

  • Half-life (t½) = 23 million years
  • Number of half-lives (n) = 2
  • Time (t) =?

t = n × t½

t = 2  × 23

t = 46 million years

Learn more about half-life: brainly.com/question/25927447

8 0
3 years ago
Read 2 more answers
Please help-<br> thank you-
Flauer [41]
Dang that’s crazy.. Goodluck ..
4 0
3 years ago
Read 2 more answers
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