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3 years ago

The speed of light through space is

Chemistry

1 answer:

Sidana [21]3 years ago

6 0

The speed of light through space is 300 million m/s .

<h3>What is the limit of the speed ?</h3>

There was a time when everybody thought that there is no limit for the speed at which an object can travel , but Einstein gave the limit which is the speed of light.

The speed of the light in vacuum travels at a speed of 300 million m/s .

Therefore The speed of light through space is 300 million m/s .

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The major group of organic chemicals that has double the number of hydrogen atoms as carbon or oxygen atoms, signified by the ch

gulaghasi [49]

The major group of organic chemicals that has double the number of hydrogen atoms as carbon or oxygen atoms [chemical formula (ch2o)n] is carbohydrates.

<h3>What are carbohydrates?</h3>

Carbohydrates are biological macromolecules that function as macronutrients by providing energy, which are composed of simple carbon-based molecules linked by glycosidic bonds.

In conclusion, the major group of organic chemicals that has double the number of hydrogen atoms as carbon or oxygen atoms [chemical formula (ch2o)n] is carbohydrates.

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5 0

2 years ago

A 13.9 - g piece of metal ( specific heat capacity is 0.449 /g^ C)who whose temperature is 54.2 degrees * C was added to a sampl

lubasha [3.4K]

Answer:

26.2g = Mass of water in the calorimeter

Explanation:

The heat absorbed for the water is equal to the heat released for the metal. Based on the equation:

Q = m*C*ΔT

<em>Where Q is heat, m is the mass of the sample, C is specific heat of the material and ΔT is change in temperature</em>

<em />

Replacing we can write:

$m_{metal}*C_{metal}*dT_{metal}=m_{water}*C_{water}*dT_{water}$

13.9g * 0.449J/g°C * (54.2°C-15.6°C) = m(H₂O) * 4.184J/g°C * (15.6°C-13.4°C)

240.9J = m(H₂O) * 9.2J/g

<h3>26.2g = Mass of water in the calorimeter</h3>

4 0

3 years ago

How many moles are in 153’pp grams of KClO3

katen-ka-za [31]

Answer:

n = 1.24 moles

Explanation:

Given that,

Mass = 153 grams

Molar mass of KClO₃ = 122.55 g/mol

We need to find the number of moles.

We know that,

No. of moles = given mass/molar mass

So,

$n=\dfrac{153}{122.55 }\\\\n=1.24$

So, there are 1.24 moles in 153 g of KClO₃.

4 0

3 years ago

Which of the following is an example of a concentric contraction

anastassius [24]

The best and the correct answer among the choices provided by the question is the second choice or letter B.

A bicep curl is a<span>n example of a concentric contraction.

</span>I hope my answer has come to your help. Have a nice day ahead and may God bless you always!

3 0

4 years ago

Read 2 more answers

If you are supposed to put in 2/4 a cup sugar for a recipe, can you just put in a half cup of sugar?

natta225 [31]

I would assume so.

Given $\frac{2}{4}$ , we can simplify the fraction to $\frac{1}{2}$

Both would obtain the same proportions, so I don't see why putting a half cup of sugar would make things any different.

Hope this is the answer you are looking for.

8 0

3 years ago

Read 2 more answers