2 years ago

Which statement best describes a difference between electromagnetic waves

Chemistry

2 answers:

9966 [12]2 years ago

6 0

Answer:

Explanation:

electronic waves transmits energy but mechanical waves require a medium in order to transport their energy from bgg one place to another.

Gekata [30.6K]2 years ago

6 0

Answer:

it is B.) Electromagnetic waves vibrate in two directions that are

Explanation:

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Maize, man, Goat, is an example of a food chain true or false

Lina20 [59]

Answer:

False

Explanation:

The correnct chain is labeled Maize, Goat, Man.

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2 years ago

compound 1 contains 15.0g of hydrogen and 120.0g oxygen. What is the percent compound of each element?

allsm [11]

Note down the formula below

$\boxed{\sf Mass\%\;of\; element=\dfrac{Mass\:of\:the\: element}{Mass\;of\:the\: compound}\times 100}$

Mass of the compound

$\\ \sf\longmapsto 15+120=135g$

Mass % of Hydrogen:-

$\\ \sf\longmapsto \dfrac{15}{135}\times 100$

$\\ \sf\longmapsto \dfrac{1}{9}\times 100$

$\\ \sf\longmapsto 11.1\%$

Mass % of Oxygen:-

$\\ \sf\longmapsto \dfrac{120}{135}\times 100$

$\\ \sf\longmapsto \dfrac{8}{9}\times 100$

$\\ \sf\longmapsto 88.9\%$

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3 years ago

The students in the picture below are using a globe and a lamp to model the Sun and the Earth. If the model Earth acts the same

timofeeve [1]

Answer:

The only one that makes sense IF the model behaves as the Earth is D.

Explanation:

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3 years ago

If one of the impurities in diesel fuel has the formula c2h6s, what products will be formed when it burns? enter a balanced chem

inna [77]

If one of the impurities in diesel fuel has the formula c2h6s, then the products that will form would be carbon dioxide, water and sulfur dioxide. The balanced chemical reaction would be as follows:

C2H6S(l) + 9/2O2(g) = 2CO2(g) + 3H2O(v) + SO2(g)

Hope this answers the question.

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2 years ago

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Which substance is the reducing agent in this reaction? 2KMnO4+3Na2SO3+H2O→2MnO2+3Na2SO4+2KOH

olganol [36]

I believe Na2SO3 is the solution to the problem.

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2 years ago

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