What are 3 steps scientists take to evaluate a science explanation?

1 answer:

7 0

First you look at your empirical evidence, secondly you see if your explanation is logical, third you look at other tests you can do to support your idea.

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Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydr

xxTIMURxx [149]

Answer:

0.374 g

Explanation:

Hello,

Since both the molarity and the volume allows us to know the moles of potassium permanganate, and we already have the balanced chemical reaction, the stoichiometric procedure that is attached in the picture, is developed to substantiate the the titrated mass of hydrogen peroxide was 0.374 g.

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4 years ago

How do we differentiate chemical change from physical change

bija089 [108]

Answer:

Chemical change :has change in mass, heat is needed, new element is formed, hard to reverse.......

Physicalchange:does not have change in mass, heat is not necessary, no new element is formed, easy to reverse

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3 years ago

Electronic configuration [Ne]3s2 3p6

saw5 [17]

The answer is Argon! From Ne you go 2 3s level elements and then 6 3p level elements

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3 years ago

Determine the number of valence electrons in pcl₃ and then draw the corresponding lewis structure.

Nikolay [14]

The number of valence electrons in $PCl_{5}$ will be 26.

The atom's outermost inhabited shell is where valence electrons are found. They are significant because they have a major impact on how an atom's chemical characteristics are determined.

The number of valence electron in P in 5 and number of valence electron in Cl is 7. There are one molecule of P and three molecule of Cl in $PCl_{5}$ molecule. By adding all valence electrons , the total number of valance electrons will be 26.

The Lewis structure of $PCl_{5}$ is shown as:

Therefore, the number of valence electrons in $PCl_{5}$ will be 26.

To know more about valence electrons

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2 years ago

What causes a molecule to have a bent shape instead of linear?

Varvara68 [4.7K]

Answer:

Explanation:

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3 years ago