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3 years ago

The four fundamental forces are arranged in the increasing order of their relative strength.

Chemistry

1 answer:

natali 33 [55]3 years ago

3 0

Answer:

The correct answer is - both act only between non-atomic particles.

Explanation:

The decreasing order of their relative strength is - the strong force, electromagnetism, weak force, gravity.

so, A would be here = gravity

B would be = weak force

C would be = strong force

The weak and strong forces both are fundamental forces that act on sub-atomic particles only such as quarks.

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Solid calcium hydroxide is dissolved in water until the pH of the solution is 10.44. Determine the concentration of the calcium

Orlov [11]

Answer:

1.38x10⁻⁴ M

Explanation:

First, we calculate the pOH of the solution, using the given pH:

pOH = 14 - pH

pOH = 14 - 10.44

pOH = 3.56

Now we calculate the concentration of OH⁻, using the pOH:

pOH = -log[OH⁻]

[OH⁻] = $10^{-pOH}$ = 2.75x10⁻⁴ M

Following the reaction Ca(OH)₂ → Ca⁺² + 2OH⁻, we divide [OH⁻] by 2 to calculate [Ca(OH)₂]:

[Ca(OH)₂] = 2.75x10⁻⁴ M / 2

[Ca(OH)₂] = 1.38x10⁻⁴ M

6 0

2 years ago

Pleasee help me I really need an answer help

Juliette [100K]

Answer:

This is hard for me also but I am trying to find out answer

Explanation:

Please mark me as brainlist.

6 0

3 years ago

Which of the following elements is a metalloid

klemol [59]

A metalloid can be:
- Boron (B)
- Silicon (Si)
- Germanium ( Ge)
- Arsenic (As)
- Antimony ( Sb)
- Tellurium (Te)
- Polonium (Po)

Hope this helps :)

6 0

3 years ago

Read 2 more answers

Molarity s defined as the

RideAnS [48]

The molar concentration of a solution, usually expressed as the number of moles of solute per liter of solution.

3 0

3 years ago

Read 2 more answers

Answer truthfully:))

BartSMP [9]

Answer:

b) velocity.

c) velocity, m/s²

d)change in velocity, change in direction, change in both velocity and direction.

e) increasing or decreasing

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2 years ago