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alukav5142 [94]
2 years ago
13

1. Target I1

Chemistry
1 answer:
mr_godi [17]2 years ago
4 0

Answer:

A

B that is Cr,MN,Fe,Co. is the correct answer

C

D

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A letter stating three things that need urgent fixing in your school<br><br><br><br>​
ioda

Answer and Explanation:

  • <em>Computers ( The computers are very old and very slow, and we have to notice that almost everyone are using computers at the same time at the school, which makes it even harder for it to load up assignments. )</em>
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<em>Hope this helps! ;)</em>

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3 years ago
In an ion with an unknown charge, the total mass of all the electrons was determined to be 1.640 x <img src="https://tex.z-dn.ne
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D should be the answer from 1.675 x 10 -/23
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What are the steps from dalton's atomic theory to stoichiometry?​
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Answer:

Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.

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3 years ago
2. If 1.75 L of a gas is at 700. K and is under 250. kPa of pressure, what will the new
Andrews [41]

Answer:

Final volume is 3.50L

Explanation:

It is possible to find volume of a gas using combined gas law:

\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}

<em>Where P is pressure, V is volume and T is temperature of 1: initial state and 2: final state</em>

If initial state of the gas is:

1.75L of a gas is at 700K and is under 250kPa of pressure

And final state is:

298K and 53.2kPa.

Replacing:

\frac{250kPa*1.75L}{700K} =\frac{53.2kPa*V_2}{298K}

0.625L = 0.1785*V₂

<em>3.50L = V₂</em>

Thus, <em>final volume is 3.50L</em>

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3 years ago
What does the term normal imply when used in Alkanes?​
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Answer:

The simplest alkanes have their C atoms bonded in a straight chain; these are called normal alkanes. They are named according to the number of C atoms in the chain.

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