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Sergio039 [100]
3 years ago
12

A repeating unit in all organic compounds are called

Chemistry
1 answer:
Alex Ar [27]3 years ago
4 0

Answer:polymers

Explanation:I’m pretty sure lemme know if helps

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Calculate the wavelength (in nm) of the blue light emitted by a mercury lamp with a frequency of 6.32 × 1014 Hz.
tester [92]

Answer:

474 nm or 4.74 x 10^2 nm

Explanation:

c = λv

c (speed of light) = 2.998 x 10^8 m/s

λ = ?

v = 6.32 × 1014 Hz = 6.32 × 1014 1/s

2.998 x 10^8 m/s = (λ)(6.32 × 10^14 1/s)

λ = (2.998 x 10^8 m/s) / (6.32 × 10^14 1/s)

λ = 4.74 x 10^-7 m

λ = 4.74 x 10^-7 m x (1 x 10^9 nm/1 m) = 474 nm

7 0
2 years ago
Urea is a common fertilizer with the formula CO(NH2)2 that is sometimes used as a chemical de-icer for icy road surfaces in the
nordsb [41]

Answer:

The answer to your question is  molality = 0.61

Explanation:

Freezing point is the temperature at which a liquid turns into a solid if a solute is added to a solution, the freezing point changes.

Data

Kf = 1.86 °C/m

molality = ?

ΔTc = 1.13°C

Formula

ΔTc = kcm

Solve for m

m = ΔTc/kc

Substitution

m = 1.13 / 1.86

Simplification and result

m = 0.61

4 0
3 years ago
CO 2 is an element. true or false
iren [92.7K]

Answer: false

Explanation:

f this helps typically an element wont have a 2 next to it, to see if something is an element or compound check for the element on the periodic table and see if the structure or name matches the one given to you on the question. for example here it is Co2 on the periodic table it's simply written as Co

co2 or carbon dioxide is a  compound not an element, you can even check this on the periodic table

7 0
2 years ago
Read 2 more answers
Which of the following elements can form diatomic molecules held together by triple covalent bonds?
Art [367]
Nitrogen can form a diatomic molecule held together by triple bonds.
6 0
2 years ago
Read 2 more answers
Of the choices, which metal element would be the most reactive? (Please explain why the answer is the answer).
mart [117]

Answer:

sulfur

Explanation:

sulfur because it have unknown metal

i just got done with the unit 2 weeks ago

7 0
2 years ago
Read 2 more answers
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