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erik [133]
3 years ago
10

A stretched rubber band is an example of:

Chemistry
1 answer:
klio [65]3 years ago
3 0

Answer:

Potential Energy

Explanation:

Not sure how to explain it but C and D could be crossed off as answers, kinetic energy would be if it was released (?)

sorry if im wrong

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What is the pH of a solution has a hydrogen ion concentration of 6.3 x 10–10 M? Show work
NISA [10]

Answer:

pOH = 4.8

pH = 9.2

Explanation:

Given data:

Hydrogen ion concentration = 6.3×10⁻¹⁰M

pH of solution = ?

pOH of solution = ?

Solution:

Formula:

pH = -log [H⁺]

[H⁺] = Hydrogen ion concentration

We will put the values in formula to calculate the pH.

pH = -log [6.3×10⁻¹⁰]

pH = 9.2

To calculate the pOH:

pH + pOH = 14

We will rearrange this equation.

pOH = 14 - pH

now we will put the values of pH.

pOH = 14 - 9.2

pOH = 4.8

7 0
3 years ago
Make a good chain with arrows include these organisms white shark,bacteria,kelp,sun,sea urchin,otter
MakcuM [25]

Sun to kelp

kelp to sea urchin

sea urchin to otter

otter to shark

kelp,sea urchin,otter,shark to bacteria

bacteria back to kelp

8 0
3 years ago
Which functional group does the molecule below have?
makvit [3.9K]

Answer:

B

Explanation:

7 0
2 years ago
Part A Which of the following groups comprise the s-block of elements? View Available Hint(s) A) groups 3-12 B) group 18 C) grou
Yakvenalex [24]

Answer:

D)groups 1 and 2 ​

Explanation:

The s-block of elements are made up of those chemical elements we can find in groups 1 and 2 on the periodic table.

A periodic table of element is based on the periodic law which states that "the properties of elements are a periodic function of their atomic number".

In the table;

  • elements having the same number of electrons in the outermost shell are placed over one another in vertical columns.
  • each resulting vertical column is called a group or family.
  • resulting horizontal rows are known as periods.  

The s-block consists of elements in groups 1 and 2 having an outermost ""ns"" shell configuration. They are predominantly metals.

For Option A, groups 3-12 is the D-block

Option B, group 18 is filled with noble gases and it makes up the p-block

Option C, group 13-18 is makes up the p-block too.

So, the s-block is made up group 1 and 2 elements.

7 0
3 years ago
Match each type of reaction to its amount of potential energy. (PLEASE HELP )
sergejj [24]
Endo is more in reactants and exo is more in products because in exothermic reactions heat is released
8 0
3 years ago
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