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
Bas_tet [7]
3 years ago
6

What is the frequency of a radio wave with a wavelength of 578.0m

Chemistry
1 answer:
Radda [10]3 years ago
4 0

Answer:

0.0017 Hz

Explanation:

the solution is in the photo

You might be interested in
Polar bears give birth and hunt on sea ice. Which of the following would help polar bears survive during the melting of Arctic i
galina1969 [7]

i think the answer is the second one

4 0
3 years ago
Read 2 more answers
The burning of magnesium is a highly exothermic reaction. How many kilojoules of heat are released when 0. 75 mol of Mg burn in
alexandr402 [8]

Taking into account the definition of enthalpy of a chemical reaction, the quantity of heat released when 0.75 moles of Mg are burned is 451.5 kJ.

<h3>Enthalpy of a chemical reaction</h3>

The enthalpy of a chemical reaction is known as the heat absorbed or released in a chemical reaction when it occurs at constant pressure. That is, the heat of reaction is the energy that is released or absorbed when chemicals are transformed into a chemical reaction.

The enthalpy is an extensive property, that is, it depends on the amount of matter present.

<h3>Heat released in this case</h3>

In this case, the balanced reaction is:

2 Mg(s) + O₂ (g) → 2 MgO(s) + 1204 kJ

This equation indicates that when 2 moles of Mg reacts with 1 mole of O₂, 1204 kJ of heat is released.

When 0.75 moles of Mg are burned, then you can apply the following rule of three: if 2 moles of Mg releases 1204 kJ of heat, 0.75 moles of Mg releases how much heat?

heat=\frac{0.75 moles of Mgx1204 kJ}{2 moles of Mg}

<u><em>heat= 451.5 kJ</em></u>

Finally, the quantity of heat released when 0.75 moles of Mg are burned is 451.5 kJ.

Learn more about enthalpy of a chemical reaction:

<u>brainly.com/question/15355361</u>

<u>brainly.com/question/16982510</u>

<u>brainly.com/question/13813185</u>

<u>brainly.com/question/19521752</u>

4 0
2 years ago
How many neutrons are found in a stable isotope of uranium-235?
bezimeni [28]

thx but it's actually 143

8 0
3 years ago
I KNOW THE ANS JUST NEED AN EXPLANATION...PLEASE I WILL Mark you the brainiest
Reika [66]
I’m pretty sure it would be D.
5 0
3 years ago
What are some compare and contrasts between Terrestrial Planets and Gas Planets?
dexar [7]
<h3><u><em>The different types of planets would be the gas giants all have more than 12 moons whereas the terrestrial planets all have less than 3 moons. A second difference is that that gas giants are all larger in diameter than the terrestrial planets. Also the Gas Giants are usually bigger than Terrestrial Planets. Gas Giants also have thicker atmospheres, and have gaseous surfaces. Terrestrial planet tend to be smaller, and have solid surfaces. In our solar system, Mercury, Venus, Earth (home), and Mars are Terrestrial planets.I am glad to help anytime ...Brainliest?</em></u></h3>

<u><em></em></u>

6 0
3 years ago
Other questions:
  • Which one of the following is a common acid? A. Antacid
    8·2 answers
  • The hydrogen gas formed in a chemical reaction is collected over water at 30.0 ∘c at a total pressure of 734 mmhg . part a what
    9·2 answers
  • Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties? Sr, Te Ga,
    11·1 answer
  • Copper occurs in nature in the form of two isotopes, Cu-63 and Cu-65. Its correctly recorded atomic mass (weighted average) is 6
    11·1 answer
  • What volume of oxygen gas, in milliliters, is required to react with 0.640 g of SO2 gas at STP?
    13·2 answers
  • HELP I WILL mark brainliest
    6·1 answer
  • help please, How much water would you need to add to the 10 grams of sodium hydroxide to make 100 grams of the 10% solution?
    6·1 answer
  • Cuantos gramos hay en 3 mol de NaCI?
    8·1 answer
  • What did the Aboriginal people use to weave dilly bags?
    6·1 answer
  • What happens when warm air rises? (5 points)
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!