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Kipish [7]
2 years ago
12

Please help as soon as possible I will give out 100 points and Brian less

Chemistry
2 answers:
charle [14.2K]2 years ago
4 0
An object that has negative charge.They always attract opposite :)
Ilia_Sergeevich [38]2 years ago
4 0

Answer:Any charged object - whether positively charged or negatively charged - will have an attractive interaction with a neutral object. Positively charged objects and neutral objects attract each other; and negatively charged objects and neutral objects attract each other.

Explanation:

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Briefly describe how the structure of each molecule differs
son4ous [18]

Answer:

A molecule is a group of two or more atoms held together by chemical bonds. A compound is a substance which is formed by two or more different types of elements which are united chemically in a fixed proportion. All molecules are not compounds. All compounds are molecules.

8 0
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Calculated from measurements of distance and time defined
prisoha [69]

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Any of the six chemical elements that markup group1

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Explanation:

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A porpoise sends out an ultrasonic burst and hears the echo off his favorite food in 0.13 seconds. How far away is the food sour
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The porpoise would hear its echo first because sound travels faster in water than in air. The bat would hear its echo first because the amplitude of sound waves ...

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2 years ago
What is the balanced chemical equations for fe + o2 → iron(౹౹) oxide?
pishuonlain [190]
The idea behind balancing chemical equations is that the number of atoms an element has on the reactants' side must be equal to the number of atoms it has on the products' side.

These atoms will become a part of different compounds once the reaction is completed, but they must always be in equal numbers on both sides.

So, look at iron first. One atom reacts, but two are produced - notice the 2 subscript iron has in Fe2O3. This means you must double the number of atoms on the reactants' side to reach an equality.

2Fe(s)+O2(g)→Fe2O3(s)

Now look at oxygen. Two atoms react, but three are produced. The trick here is to find a common multiple that will make the number of atoms equal on both sides.

The easiest way to do this is to multiply the atoms that react by 3, which will give you 6 oxygen atoms that react, and the atoms that are produced by 2 - this will get you 6 oxygen atoms produced.

2Fe(s)+3O2(g)→2Fe2O3(s)

However, notice that the iron atoms are unbalanced again. You have 2 that react, but 4 that are produced → multiply the atoms that react by 2 again, which will give you

4Fe(s)+3O2(g)→2Fe2O3(s)

3 0
3 years ago
Chemical changes involve the breaking and making of chemical bonds. TRUE or FALSE.
lubasha [3.4K]
 The answer is TRUE chemical changes do involve breaking and the making of chemical bonds.
4 0
2 years ago
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