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melomori [17]
3 years ago
5

What is an echo? (1 point)

Chemistry
2 answers:
makvit [3.9K]3 years ago
6 0
The reflection of sound waves, hope this helps :)
zaharov [31]3 years ago
4 0

Answer:

The reflection of sound waves

Explanation:

An echo is a reflection of sound that bounces of of one thing to another.

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Given the reaction: A + B <--> C + D
Lady_Fox [76]

Answer:

A.) 4.0

Explanation:

The general equilibrium expression looks like this:

K = \frac{[C]^{c} [D]^{d} }{[A]^{a} [B]^{b} }

In this expression,

-----> K = equilibrium constant

-----> uppercase letters = molarity

-----> lowercase letters = balanced equation coefficients

In this case, the molarity's do not need to be raised to any numbers because the coefficients in the balanced equation are all 1. You can find the constant by plugging the given molarities into the equation and simplifying.

K = \frac{[C]^{c} [D]^{d} }{[A]^{a} [B]^{b} }                                       <----- Equilibrium expression

K = \frac{[2 M] [2 M]}{[1 M] [1 M] }                                     <----- Insert molarities

K = \frac{4}{1  }                                                <----- Multiply

K = 4                                                <----- Divide

6 0
2 years ago
The CNO cycle produces energy in which of the following?
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Stars on the main sequence fuse hydrogen into helium via a six-stage sequence of reactions
7 0
3 years ago
Is tap water a mixture or a pure substance
siniylev [52]

Mixture. Distilled Water may be a pure substance, however, there are many minerals and such that are in tap water, making it a mixture.

8 0
3 years ago
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Which is a characteristic of a strong base
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Acids or bases<span> with weak bonds easily dissociate into ions and are called "</span>strong<span>" acids or </span>bases<span>. Table 1: Summary List of </span>Characteristics<span> for </span>Strong<span> and Weak Acids and </span>Bases<span>. All </span>characteristics<span> of acids and </span>bases<span> are related to whether the predominate forms are molecules and ions. </span>Characteristic<span>.</span>
3 0
3 years ago
When a meteor falls on earth. a streak of light is seen. will this streak of light be seen if a meteor falls on the moon? Explai
Lera25 [3.4K]

Answer:

No streak of light will appear.

Reason I given below.

Explanation:

No streak of light will be seen.

This is because as it falls to the moon, the gravitational pull plus the dense atmosphere which was necessary to produce friction when it fell to the earth are not present in this case and as such the whole meteor is not burnt like it did when it fell to the earth.

7 0
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