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3 years ago

An aqueous solution is made up of

1 answer:

8 0

I believe an aqueous solution is made up of ions dissociated in solution. An aqueous solution is a solution in which water acts as a solvent. For example a solution sodium chloride in water is shown as Na+(aq) + Cl-(aq). Most acids and bases exists in aqueous solution form.

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iogann1982 [59]

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3 years ago

What do scientists call a smart guess?

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3 years ago

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Which of the following best explains the trend in ionization energy across a period?

Alina [70]

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3 years ago

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Question 2 (0 points)

bazaltina [42]

Answer:

The probability of spinning red with the spinner or rolling an odd number with the die is $\dfrac{1}{8}$

Explanation:

Given that,

Total color in spinner = 4

Let the area of four parts is equal in the spinner.

We need to calculate the probability of spinning red

Using formula of probability

$P(A) = \dfrac{Number\ of\ red\ color\ outcome}{Total\ number\ of\ colors\ in\ the\ spinner}$

Put the value into the formula

$P(A)=\dfrac{1}{4}$

We need to calculate the probability of odd number of the die

Using formula of probability

$P(B) = \dfrac{Number\ of\ odd\ digits\ outcome}{Total\ number\ of\ digits\ in\ the\ die}$

Put the value into the formula

$P(B)=\dfrac{3}{6}$

$P(B)=\dfrac{1}{2}$

We need to calculate the probability of spinning red with the spinner or rolling an odd number with the die

Using formula of probability of two events which is independent

$P(A\ and\ B)=P(A)\times P(B)$

Put the value into the formula

$P(A\ and\ B)=\dfrac{1}{4}\times\dfrac{1}{2}$

$P(A\ and\ B)=\dfrac{1}{8}$

Hence, The probability of spinning red with the spinner or rolling an odd number with the die is $\dfrac{1}{8}$

5 0

3 years ago

A sound wave has a wavelength of 0.450

Karolina [17]

Answer:

The wave's frequency is 733 hertz.

Explanation:

The wavelength (λ) is the minimum distance between two points of the wave that are in the same state of vibration.

Frequency (f) is the number of vibrations that occur in a unit of time.

The speed of propagation (v) is the speed with which the wave propagates in the middle. Relate wavelength (λ) and frequency (f) inversely proportionally using the following equation: v = f * λ.

In this case you know that:

Wavelength of the sound wave (λ) = 0.450 meters
Speed of the sound wave (v)= 330 meters per second= 330 $\frac{meters}{second}$

Replacing you get:

$330 \frac{meters}{second} = f* 0.450 meters$

Then:

$f=\frac{330 \frac{meters}{second} }{0.450 meters}$

f=733.33 hertz≅733 hertz

Finally, the wave's frequency is 733 hertz.

6 0

3 years ago