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velikii [3]
3 years ago
15

How to learn stoichiometry

Chemistry
1 answer:
frez [133]3 years ago
3 0
If you go on youtube and do a quick search about stoichiometry it really helps, or you can google "stoichiometry practice" and get wonderful worksheets that walk you through everything
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What are the numbers of orbitals in sublevel of s?
MaRussiya [10]
1 orbital in that sub level I think
6 0
4 years ago
Which diagram demonstrates active transport?<br> a. A<br> b. B<br> C.<br> C<br> d. None of the above
Tpy6a [65]

Answer:

c

Explanation:

8 0
3 years ago
Click the "draw structure" button to launch the drawing utility. under certain reaction conditions, 2,3−dibromobutane reacts wit
REY [17]

Answer:

Explanation:

According to this. Let's analize the possible products a, b and c.

First, the problem states that we have 2 eq. of base, For this case, let's assume it's KOH. Now, As we are doing a reaction with base, means that this reaction can only take places under conditions of SN2 and E2, a fast reaction that is taking place in only 1 step.

With this in mind, let's analyze product a. This states that it has two sp hybridized carbon, in other words, a triple bond between two carbons. So the product is with no doubt, an alkyne.

Product b has only one sp hybridized carbon, which means that this carbon should cannot be an alkyne because we need two carbon atoms. The only way to have one atom of C sp hybridized, is with two double bonds, so product b would have to a alkene with two double bonds.

Product c do not have sp hybridized carbon, therefore, it only has two double bonds in two different Carbon atoms, so it's another alkene with two double bonds, but in two different atoms of carbon.

Picture attached show the product a, b and c. Hope this can help

4 0
3 years ago
Humans are made up of __________________ that have many different types of cells to perform different functions. All the cells w
Paul [167]

Answer:

1. C

2. C

Explanation:

were made of many many cells, fertilized egg is our first cell

7 0
3 years ago
What is the voltage of a battery that powers a light with .43 A and has a resistance of 3.5 ohms? A) 1.505 V Eliminate B) 3.07 V
Mrac [35]
To determine the voltage of the battery above, we use Ohm's Law which relates voltage (V), current (I) and resistance (R) in a circuit. It is expressed as V = IR. We calculate as follows:

V = IR
V = .43 A ( 3.5 ohms )
V = 1.505 V

Therefore, the correct answer is option A.
5 0
3 years ago
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