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vovangra [49]
3 years ago
11

Im about to take first year chemistry for engineering. Should i review or will this be done in class? If yes what are some conce

pts i should review. It would help if you could provide a list of key concepts/definitions/properties.
P.S.: I remember little to nothing.
Chemistry
1 answer:
sashaice [31]3 years ago
6 0
You should always study. you can be above your class. thats what i do.. search google for ur course. they can tell u some key points for it. u should even study what you know and want to know as well.
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Heat of combustion.
oxidation states.
chemical stability
8 0
3 years ago
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If a compound contains a poly atomic ion then what type of compound is it A. Convalent Compound B. Ionic Compound
den301095 [7]

Answer:

B. Ionic Compound

Explanation:

An ionic compound is that compound which contains a positively charged ion called CATION and a negatively charged ion called ANION. The cation loses or transfers electrons to the anion, hence, making the former (cation) positive and the latter (anion) negative.

A polyatomic ion is an ion that contains more than one type of atom e.g OH-, NO3²-, CO3²- etc. A polyatomic ion usually has an overall charge formed from the charges of the individual atoms that makes it up. For example, in OH-, the overall charge is -1.

Since a polyatomic ion can have an overall positive or negative charge, it must enter a reaction with another ion that complements it i.e. a negative polyatomic ion will react with a positive ion to neutralize its charge. Hence, this forms an IONIC COMPOUND. This is why most compounds with polyatomic ions are IONIC COMPOUNDS.

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5 0
3 years ago
C2H6O + _02&gt; _CO2 + _H20<br> +<br> Please help balance this equation
Paraphin [41]
All of the blanks are 6
7 0
3 years ago
How many moles of aluminum oxide are produced from 0.35 moles of oxygen?
mash [69]

Answer : The number of moles of aluminium oxide produced from 0.35 moles of oxygen are, 0.233 moles.

Solution : Given,

Moles of oxygen = 0.35 moles

The balanced chemical reaction will be,

4Al+3O_2\rightarrow 2Al_2O_3

From the balanced chemical equation, we conclude that

As, 3 moles of oxygen react to give 2 moles of aluminium oxide

So, 0.35 moles of oxygen react to give \frac{2}{3}\times 0.35=0.233moles of aluminium oxide

Therefore, the number of moles of aluminium oxide produced from 0.35 moles of oxygen are, 0.233 moles.

4 0
3 years ago
There are several ways to model a compound. One type of model is shown.
mafiozo [28]

The chemical formula will be  C_4H_9O_2.

<h3>Chemical formula</h3>

From the model, there are a total of 4 carbon atoms, 9 hydrogen atoms, and 2 oxygen atoms.

All the atoms are bonded to each other accordingly.

Thus, the only plausible chemical formula for the compound is C_4H_9O_2

All other available options fall short in one way or the other as far as the number of atoms of each element in the compound is concerned.

More on chemical formulas can be found here: brainly.com/question/11995171

#SPJ1

4 0
2 years ago
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