1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ira [324]
3 years ago
13

Question 3 (2 points) The electromagnetic waves with the lowest frequency are ______ waves.

Chemistry
2 answers:
Paladinen [302]3 years ago
8 0
The highest ..........
Darya [45]3 years ago
6 0

Answer:

Radio Waves have the lowest frequency but the highest

Explanation:

From the acronym GUX = VIR

Wavelength, deviation, and refractive index increases to the right

but frquency increases to the left

You might be interested in
Balance the following and label what type of reaction is taking place:
Vadim26 [7]

4,27,20,18

I hope this helps.

3 0
2 years ago
A 30.7 g sample of Strontium nitrate, Sr(NO3)2•nH2O, is heated to a constant mass of 22.9 g. Calculate the hydration number.
Elodia [21]

Answer:

  • <em>Hydration number:</em> 4

Explanation:

<u>1) Mass of water in the hydrated compound</u>

Mass of water = Mass of the hydrated sample - mass of the dehydrated compound

Mass of water = 30.7 g - 22.9 g = 7.8 g

<u>2) Number of moles of water</u>

  • Number of moles = mass in grams / molar mass

  • molar mass of H₂O = 2×1.008 g/mol + 15.999 g*mol = 18.015 g/mol

  • Number of moles of H₂O = 7.9 g / 18.015 g/mol = 0.439 mol

<u>3) Number of moles of Strontium nitrate dehydrated, Sr (NO₃)₂</u>

  • The mass of strontium nitrate dehydrated is the constant mass obtained after heating = 22.9 g

  • Molar mass of Sr (NO₃)₂ :  211.63 g/mol (you can obtain it from a internet or calculate using the atomic masses of each element from a periodic table).

  • Number of moles of Sr (NO₃)₂ = 22.9 g / 211.63 g/mol =  0.108 mol

<u>4) Ratio</u>

  • 0.439 mol H₂O / 0.108 mol Sr(NO₃)₂ ≈  4 mol H₂O : 1 mol Sr (NO₃)₂

Which means that the hydration number is 4.

4 0
3 years ago
Read 2 more answers
50 points!! Brainliest if correct!!
Luda [366]

The answer is C. The answer is C because if u increase the surface area, the more reactants u will get. and if u get more The reactants will move faster. Hoped that Helped!:-)

4 0
3 years ago
Which alkaline earth metal has the highest ionization energy? Refer to the periodic table.
Liula [17]
I’m pretty sure the answer is Barium. I hope it helps.
4 0
3 years ago
Read 2 more answers
Which describes a way to speed up the collisions between hydrogen and oxygen molecules to produce more water?
rodikova [14]
<span>Equation:2H2(g) + O2(g) → 2H2O(g)
</span><span>
Smaller container means less volume, and the molecules will hit the walls of the container more frequently because there's less space available and the pressure will go up. I guess this would mean that the side with fewer moles would be favored as a result. We count the number of moles on the reactants and products and find that there are fewer moles on the product side, so I guess this would favor the product formation.

</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • Describe what happened on the Passover day at the time of jesus​
    7·1 answer
  • Which of the following does not affect the electrical resistance of a body?
    11·1 answer
  • Formaldehyde, ch2o, is used as an embalming agent. draw the structure of ch2o including lone pairs.formaldehyde, ch2o, is used a
    14·1 answer
  • How many lbs. of O2 are required to fully convert 1-lb of glucose (C6H12O6) to carbon dioxide and water
    10·1 answer
  • An organism that makes its own food
    15·1 answer
  • There are 3.01 x 1023 atoms of gold, 1 mole of platinum, and 3.01 moles of silver. Which contains more atoms?
    10·2 answers
  • 10. Which of the following group of colors of the visible light is listed from
    11·1 answer
  • Please help im being timed :((
    6·1 answer
  • can I get some help.and no link I have the table already I just need the information​. it's graded please​
    13·1 answer
  • What would be the vital capacity be for a man that has a tidal volume of 500mL, a residual volume of 1100 mL, an expiratory rese
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!