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dedylja [7]
3 years ago
10

Jasper made a list of the properties of electromagnetic waves. Identify the mistake in the list.

Chemistry
1 answer:
ch4aika [34]3 years ago
3 0

Answer:

B. Line 2 has a mistake

Explanation:

1. All electromagnetic waves are made of both electric and magnetic fields (hence the name electromagnetic).

2. All electromagnetic waves are transverse, and not longitudinal.

3. All electromagnetic waves can travel through space because they do not need particles to travel (like sound waves).

4. Electromagnetic waves all travel at the speed of light (299 792 458 m/s).

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Answer:

500J (joules)

Explanation:

since heat is is the product of mass, change in temperature, and specific heat, the solution can be found from the equation q = mcΔt, heat is 50 * .5 * 20 = 500J

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Which molecule contains a total of eight carbon atoms?
Radda [10]
The molecule that contains a total of eight carbon atoms :
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8 0
3 years ago
Read 2 more answers
In your own words, explain what’s happening here. I need help please!! <br><br> H2+O2+H2O
Yanka [14]

Answer:

Nothing is happening.

Explanation:

As written, nothing is going on.  H2+O2+H2O represents a mixture of H2, O2, and H2O.  We aren't even given the states, so they may all be gases, liquids/solids, or dissolved gases in a liquid (water).

If we had H2+O2 → H2O, we could say that hydrogen and oxygen are combining to form H2O, water.  We should note, however, that the chemical equation is not balanced.  There are two oxygen atoms on the reactant side, but only one on the product side.  A balanced equation would read:

2H2 + O2 → 2H2O

It would be nice to indicate the physical states, such as:

2H2(g) + O2(g) → 2H2O(l)

Two gases, oxygen and hydrogen, combine to form liquid water.

Also missing from this equation is the energy that may be consumed, or released in this reaction. It would be nice to know, for example, that this reaction releases a lot of energy.  Otherwise, we might wind up in the local headlines.

4 0
2 years ago
Does each state get the same number of votes in the electoral college
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Each state is allocated a number of electors equal to the number of its U.S. Senators



8 0
4 years ago
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