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Naily [24]
3 years ago
14

Which best describes the octet rule? (*hint- octet rule relates to

Chemistry
1 answer:
Vladimir79 [104]3 years ago
3 0

Answer:a

Explanation:

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Which has the greater concentration of hydrogen ions, a substance with a pH of 5 or a substance with a pH of 4?
evablogger [386]

Answer:

pH 4

Explanation:

Firstly, we define pH as the negative logarithm to base 10 of the concentration of hydrogen ions.

Mathematically, we express this as:

pH = -log[H+]

Now let’s us calculate the concentration of hydrogen in each of the pH

For pH 4, we have:

4 = -log[H+]

[H+] = -Antilog(4)

[H+] = 0.0001M

For pH 5,

[H+] = -Antilog(5)

[H+] = 0.00001M

We can see that 0.0001 is greater than 0.00001 and thus it has a greater concentration of hydrogen ions

4 0
3 years ago
A boy weighs 525 N. What is his mass?
MAXImum [283]

Answer:≈40.8 kg.

Explanation:

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3 years ago
What is the reaction when magnesium becomes magnesium oxide
Oliga [24]
Magnesium and oxygen reacting to form magnesium oxide is a synthesis reaction. This reaction occurs when many reactants proceeds to reaction forming a single product. Synthesis reactions release energy in the form of light or heat, therefore they are exothermic reaction.
6 0
3 years ago
To which is the watt is equal?
sp2606 [1]

Answer:

sdfsdf

Explanation:dfgdfg dfgdgdg

sdfsdfsdf

6 0
3 years ago
Can you think of another way the Egyptians might have tried to reduce friction to move the heavy blocks?
quester [9]
There are different techniques to reduce friction, similar to 1. Cleaning the surfaces 2. Including lubricants 3. expanding the temperature 4. wetting the surface 5. expelling polluting influences. Egyptian could have moved the square through water, which would be Fluid Friction, and makes it less demanding to move.
8 0
3 years ago
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