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3 years ago

Drag the types of electromagnetic waves to place them in order of increasing wavelength.

Chemistry

2 answers:

patriot [66]3 years ago

3 0

From shortest wavelength to longest wavelength: ultraviolet ,visible light ,infrared

Fed [463]3 years ago

3 0

Answer:

Visible light

Ultraviolet

Infrared

Explanation:

Increasing wavelength of different types of electromagnetic waves always start with visible light. It just makes sense, it's the stuff that we can see, it won't/can't harm us. Usually, that spectrum usually ends with Gamma rays. Because those, especially Gamma, are the most harmful to the human body. So, if you ever try to order these types of waves, always start with visible and end with Gamma.

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Determine the number of atoms in 73.0 grams of calcium, Ca. (The

Elden [556K]

# of atoms per mol = Avogadro’s # (6.022 x 10^23)

Number of mols = mass of substance / molar mass

73 g / 40.08 g = 1.8 mols of Ca in 73 grams

1.8 mols x avagadro’s # = 1.1 x 10^24 atoms in 73 grams of Ca

7 0

2 years ago

Melting can be best described as a process in which molecules

statuscvo [17]

Melting can be best described as a process in which molecules gain enough kinetic energy to be able to pass to each other.

3 0

2 years ago

What is the percentage by mass of sulphur in Al2(SO4)3[A12SO4 =<br>342g/mol, S = 32]

valentinak56 [21]

Answer: The percentage by mass of sulphur in $Al_2(SO_4)_3$ is 9.36%

Explanation:

Mass percent of an element is the ratio of mass of that element by the total mass expressed in terms of percentage.

${\text {Mass percentage}}=\frac{\text {mass of sulphur}}{\text {Total mass}}\times 100\%$

Given: mass of sulphur = 32 g/mol

mass of $Al_2(SO_4)_3$ = 342 g/mol

Putting in the values we get:

${\text {Mass percentage}}=\frac{32g/mol}{342g/mol}\times 100\%=9.36\%$

The percentage by mass of sulphur in $Al_2(SO_4)_3$ is 9.36%

4 0

3 years ago

Passive prostheses are:

Len [333]

Passive prostheses are self-regulating, as shown in the first answer option.

We can arrive at this answer because:

Passive prostheses are devices used to replace parts of the body that were lost by an incident.
These prostheses are very useful to establish balance or the aesthetics of the body, but they have no articulations and no movement mechanism, being static.

This limitation allows passive prostheses not to need external regulation and to be self-regulated by fitting the body parts.

You can find more information about articulations and their effects on the link:

brainly.com/question/5847359?referrer=searchResults

5 0

2 years ago

Read 2 more answers

EASYYYYY!!!!!!!!

nlexa [21]

crop rotation, green manure, and bone meal

Explanation:

I just looked it up. hope it helps

6 0

2 years ago