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1 year ago

what type of radiation corresponds to a wavelength of 2.86 X 10 -8m?wha one would it beGammaUltravioletInfraredRadio

Chemistry

1 answer:

schepotkina [342]1 year ago

8 0

Answer

Ultraviolet

Explanation

The types of radiation and their wavelength are:

Gamma < 10⁻¹² m

X-rays 1 nm - 1 pm

Ultraviolet 400 nm - 1 nm

Visible 750 nm - 400 nm

Near-infrared 2.5 μm - 750 nm

Infrared 25 μm - 2.5 μm

Microwaves 1 mm - 25 μm

Radio waves > 1 mm

Hence, the given wavelength of 2.86 X 10⁻⁸ m corresponds to Ultraviolet.

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If a lab requires each lab group to have 25ml of a solution and it takes 15 grams of CuNO3 to make 1 liter of solution how many

tino4ka555 [31]

We need to do some general algebra here.

We will find that you need 8.25 grams of CuNO₃ to make enough solution for the 22 labs.

Each lab group needs 25 ml of solution.
it takes 15 g of CuNO₃ to make one L of that solution.
There are 22 labs.

Because each lab needs 25 ml of solution, 22 labs will need that amount 22 times, so the <u>total amount of solution needed</u> is:

22*25ml = 550 ml

Now we know that we need 15 grams to make one liter of solution, and:

1 L = 1000ml

Then you need 15g to make 1000ml

and x (we want to find this amount) to make 550ml

Then we can write two equations (not actual equations, as these are different units) like:

x = 550ml

15g = 1000ml

Now we can take the quotient between these two equations:

x/15 g = (550ml/1000ml)

And now we can solve this for x:

x = (550ml/1000ml)*15g = 8.25g

So you need 8.25 grams of CuNO₃ to make enough solution for the 22 labs.

If you want to learn more, you can read:

brainly.com/question/8743486

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2 years ago

Use the following equation to answer question 1-4. Make sure you balance first.

worty [1.4K]

<h3>Answer:</h3>

5.2 mol H₂O

<h3>General Formulas and Concepts:</h3>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Chemistry</u>

<u>Stoichiometry</u>

Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Balanced] 6HCl + Fe₂O₃ → 2FeCl₃ + 3H₂O

[Given] 10.4 mol HCl

<u>Step 2: Identify Conversions</u>

[RxN] 6 mol HCl = 3 mol H₂O

<u>Step 3: Stoichiometry</u>

Set up: $\displaystyle 10.4 \ mol \ HCl(\frac{3 \ mol \ H_2O}{6 \ mol \ HCl})$
Multiply/Divide: $\displaystyle 5.2 \ mol \ H_2O$

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2 years ago

What most likely happens when water loses heat?

astraxan [27]

If water loses heat then it will become cold and as the water becomes cold it starts forming these little bubbles around the glass. If you want extra information search up *Why are there bubbles in my water?* and it will give you the information right on the page if you're using a Google browser! Hint Hint! it has to do with nitrogen!

~Pinkachumoo

Which you the best!

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3 years ago

The heisenberg uncertainty principle status that

Juli2301 [7.4K]

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2 years ago

If the boron nitride molecule, bn, were to form, what would its structure look like? add bonds and lone pairs as necessary.

Bess [88]

Answer: The structure for the boron nitride molecule will be linear.

Explanation: When boron and nitrogen combine together to form a compound, the boron element will loose 3 electrons which will be easily accepted by the nitrogen element.

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Electronic configuration: $1s^22s^22p^1$

To attain stable configuration, boron will loose 3 electrons easily.

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To attain stable configuration. nitrogen will gain 3 electrons easily.

Hence, to form a molecule with these two elements, there will be 3 bonds present in between them and 1 pair of lone pair will be left on the nitrogen atom.

Structure of boron nitride ( which is linear) is attached in the image below.

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3 years ago