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serious [3.7K]
3 years ago
11

Questions in pic plz help .

Chemistry
1 answer:
Paladinen [302]3 years ago
6 0

Answer:

c

Explanation:

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What are the units for:<br> wavelength<br> frequency<br> energy
Oliga [24]

Answer:

wavelength.. meter

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5 0
4 years ago
Which three temperature readings all mean the same thing?
Viktor [21]

Answer:

C). 373 Kelvin, 100 degrees Celsius, 212 degrees Fahrenheit

Explanation:

Kelvin and Celsius are related using the equation K = C + 273.

Celsius and Fahrenheit are related using the equation F = (9/5) * C + 32.

This means that Kelvin and Celsius have to differ by 273, in which only B and C fit that description.

Then you can look at the Celsius and Fahrenheit readings from B and C and apply the equation F = (9/5) * C + 32. For B, you take 0 degrees Celsius and substitute it in for C to get F = (9/5) * 0 + 32, in which you get 32 degrees Fahrenheit and <em>not </em>the 212 degrees in answer B. For C, you do the same: F = (9/5) * 100 degrees Celsius + 32 = 212 degrees Fahrenheit, which does agree with the answer. Therefore, it must only be C.

3 0
3 years ago
Give below are the four mixtures. Choose the correct one which can be separated by winnowing. (i) soybean and chickpeas (ii) whe
victus00 [196]

Answer:

Banana wafers and chips

Explanation:

Winnowing is the process of separating heavier and lighter components of a mixture by blowing air through the mixture. This implies that the relative weight of the particles in the mixture determines whether they can be separated by winnowing or not.

However, chips are heavier than wafers. wafers refer to a very light snack which is easily blown away by a current of air. Hence banana chips and wafers can be separated using the method of winnowing.

4 0
3 years ago
How many molecules is 2.03 moles of Al(SO4)3?​
Elena L [17]
2.03 molecules times 6.022E23 = 1.22E24
4 0
3 years ago
PCI7 Compound name....
UkoKoshka [18]

Explanation:

Phosphorus heptachloride

3 0
3 years ago
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