How you could use the scientific method to learn whether water really does take longer to boil if you are watching it.

Chemistry

1 answer:

Degger [83]3 years ago

6 0

Answer:

What you need is a thermometer and a clock.

Explanation:

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A hypothetical covalent molecule, x–y, has a dipole moment of 1.44 d and a bond length of 163 pm. calculate the partial charge o

Aneli [31]

As we know,
1 D = 3.34 × 10⁻³⁰ C.m
So,
1.44 D = ?
Solving for 1.44 D,
= (3.34 × 10⁻³⁰ C.m × 1.44 D) ÷ 1 D

1.44 D = 4.80 × 10⁻³⁰ C.m

Dipole Moment is given as,

Dipole Moment = q  × r
Solving for q,
q = Dipole Moment / r ------ (1)
Where,
Dipole Moment =  4.80 × 10⁻³⁰ C.m

r = 163 pm = 1.63 × 10⁻¹⁰ m

Putting values in eq. 1,

q = 4.80 × 10⁻³⁰ C.m / 1.63 × 10⁻¹⁰ m

q = 2.94 × 10⁻²⁰ C

As,
1.602 × 10⁻¹⁹ C = 1 e⁻
So,
2.94 × 10⁻²⁰ C = X e⁻

Solving for X,

X = (2.94 × 10⁻²⁰ C × 1 e⁻) ÷ 1.602 × 10⁻¹⁹ C

= 0.183 e⁻

Result:
So one element is containing + 0.183 e⁻ while the other element is containing - 0.183 e⁻.

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3 years ago

Substance P is carbon.

stepan [7]

Explanation:

substance Q could be oxygen (O2)

substance R could be carbon dioxide (CO2)

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The number of electrons is not equal to number protons if...?

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Answer:

the answer is not correct

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Toothpaste is an alkali. How could you use the toothpaste to show that red cabbage is an indicator?

Alecsey [184]

Answer:

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What happens when you mix hydrogen and oxygen?

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What happens is it makes water

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