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4 years ago

5

Temperature cloud cover and thunder are all examples of

1 answer:

Umnica [9.8K]4 years ago

7 0

Temperature, cloud cover and thunder are all examples of weather.

<h3><u>Explanation:</u></h3>

Weather is described as conditions that prevail for a short period of time and the above-mentioned factors change variably throughout the day. Cloud cover simply describes the clouds coverage in the sky. It is one factor that is used to describe weather conditions since the type of clouds indicates prevailing weather.

For example, the presence of cirrus means there will be a storm in 24 to 48 hours. Weather conditions characterized by thunder is said to be stormy and it also has other conditions such as lightning, wind and fast rain with heavy raindrops. Temperature affects the warmness and coldness of the air and its movement. Moreover, it also affects all other aspects of weather conditions.

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Chanice drives her scooter 7 kilometers north she stops for lunch and then drives 5 kilometers east what distance did she cover?

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Her displacement is 2 i think

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A 0.8715 g sample of sorbic acid, a compound first obtained from the berries of a certain ash tree, is burned completely in oxyg

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<h3><u>Answer</u>;</h3>

C3H4O

<h3><u>Explanation;</u></h3>

Empirical formula is the simplest formula of a compound;

Molar mass CO2 = 44.01

Mass of CO2 produced = 2.053 g

Mass of carbon in original sample = 12.01/44.01 × 2.053

= 0.5603g

Molar mass H2O = 18

Mass of H in original sample = 2/18 ×0.5601

= 0.0622 g

Thus; original sample contained 0.5603g C and 0.0622g H. The balance of the sample was O

Mass of O = 0.8715 - (0.5603 + 0.0622) = 0.249g

The mole ratio of C:H:O will be;

Moles C = 0.5603/12 = 0.0467

Moles H = 0.0622

Moles O = 0.249/16 = 0.01556

C:H:O = 0.0467:0.0622:0.01556

Divide through by 0.01556:

C:H:O = 3:4:1

Empirical formula is thus C3H4O

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4 years ago

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Green light has a wavelength of 550nm. What is the frequency of a photon of green light?

Vikki [24]

Answer:- Frequency is $5.4*10^1^4Hz$ .

Solution:- frequency and wavelength are inversely proportional to each other and the equation used is:

$\nu =\frac{c}{\lambda }$

where, $\nu$ is frequency, c is speed of light and $\lambda$ is the wavelength.

Speed of light is $3.0*10^8m/s$ .

We need to convert the wavelength from nm to m.

( $1nm=10^-^9m$ )

$550nm(\frac{10^-^9m}{1nm})$

= $5.5*10^-^7m$

Now, let's plug in the values in the equation to calculate the frequency:

$\nu =\frac{3.0*10^8m.s^-^1}{5.5*10^-^7m}$

= $5.4*10^1^4s^-^1$ or $5.4*10^1^4Hz$

since, $1s^-^1=1Hz$

So, the frequency of the green light photon is $5.4*10^1^4Hz$ .

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Why do liquids flow?

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D. Liquid particles are attracted to each other

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4 years ago

A 33.6 mL solution of KCl has a mass of 27.29 g. After evaporating to dryness, the dry salt residues has a mass of 6.31 g. Calcu

bixtya [17]

For the molarity and the percentage of the mass of kcl are mathematically given as

%m/m = 23.1%, molarity = 3.38M

<h3>What is the molarity?</h3>

Generally, the equation for the percentage of the mass of kcl is mathematically given as

(mass of kcl/mass of solution)x 100

therefore

%m/m = (6.31/27.29)x100

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The molarity

(no of mol/ vol of sol)

molarity = 0.0846mol/0.0250 L

molarity = 3.38M

In conclusion, the molarity is given as

molarity = 3.38M

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