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ipn [44]
3 years ago
12

Which sentence best illustrates the idea outlined above

Chemistry
2 answers:
Sphinxa [80]3 years ago
7 0
There are no sentences above
const2013 [10]3 years ago
6 0

Sorry- there are no sentences listed

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What is the pH of a solution in which [H 3O +] = 3.8 × 10 -8 M?
7nadin3 [17]

Answer:

<h3>The answer is 7.42 </h3>

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ { H_3O}^{+}]

From the question we have

pH =  -  log(3.8 \times  {10}^{ - 8} )  \\  = 7.420216...

We have the final answer as

<h3>7.42 </h3>

Hope this helps you

4 0
2 years ago
Why do we need to balance chemical equations?
Mrrafil [7]
So we know the number of moles of each compound. If we need to know the concentration we must know the number of moles that the compounds react with...

8 0
3 years ago
Read 2 more answers
What type of organism does this cell most likely belong to?
maks197457 [2]

Answer:

A) a plant

Explanation:

  • A plant cell consists of cytoplasm, chloroplast, nucleus, mitochondria, cell wall, and a Golgi apparatus. They represent a eukaryotic cell of green plants and there are various types of plant cells such as Parenchyma, Collenchyma, Sclerenchyma,  Xylem, Phloem, and the Epidermis.
4 0
3 years ago
385 J of heat are needed to heat a piece of aluminum from 22°C to 45°C. If the specific heat of Al is 0.90 J/g°C, what is the ma
VikaD [51]

Answer:

M of Al=33.09g or 0.0331kg

Explanation:

Heat Energy= specific heat*mass*change in temperature

H=M*C*T

make M subject of the formula

M=H/CT

M=685J/0.90J/g°C*(45°C-22°C)

M=685J/0.90J/g°C*23°C

M=685J/20.7J/g

M=33.09g or 0.0331kg

4 0
3 years ago
After severe dust storms in the 1930s, practices were put in place to reduce soil erosion. Which
timurjin [86]

Answer: Farmers were paid to practice soil-conserving techniques like crop rotation and terracing

Explanation:

read about it here: https://www.pbs.org/wgbh/americanexperience/features/dust-bowl-surviving-dust-bowl/

5 0
3 years ago
Read 2 more answers
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