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natulia [17]
2 years ago
9

Tips for high school

Chemistry
2 answers:
Ahat [919]2 years ago
7 0

Answer:

study your tail off, chemistry requires it. I failed because I did not study.

Explanation:

musickatia [10]2 years ago
5 0

Answer:

stoichiometry is hard but the rest is kinda easy if u pay attention

Explanation:

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(01.01 MC)
mojhsa [17]

Remember that a dependent variable is a variable that is being measured in a experiment so in this case your answer would be option C "plant height." Since how they are measuring plants height.

Hope this helps!

4 0
3 years ago
Read 2 more answers
The specific heat of beryllium is____ J/g°C
BARSIC [14]
The specific heat of beryllium is 3) 1.82
7 0
3 years ago
Read 2 more answers
Neutrons are very important to an atom's ________<br> properties
solniwko [45]

Answer:

Intrinsic properties

Explanation:

Neutron affects the mass of an atom and intrinsic properties depend on the mass of the substance

7 0
2 years ago
Part B When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 22.8 g of carbon were burned in the pres
aksik [14]

<u>Answer:</u> The amount of carbon dioxide gas produced in the reaction is 83.6 grams

<u>Explanation:</u>

As, some amount of oxygen gas is left after the reaction is completed. So, it is present in excess and is considered as an excess reagent.

Thus, carbon is considered as a limiting reagent because it limits the formation of product.

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}     .....(1)

Given mass of carbon = 22.8 g

Molar mass of carbon = 12 g/mol

Putting values in equation 1, we get:

\text{Moles of carbon}=\frac{22.8g}{12g/mol}=1.9mol

The chemical equation for the reaction of carbon and oxygen gas follows:

C+O_2\rightarrow CO_2

By Stoichiometry of the reaction:

1 mole of carbon produces 1 mole of carbon dioxide gas

So, 1.9 moles of carbon will produce = \frac{1}{1}\times 1.9=1.9moles of carbon dioxide gas

Now, calculating the mass of carbon dioxide from equation 1, we get:

Molar mass of carbon dioxide = 44 g/mol

Moles of carbon dioxide = 1.9 moles

Putting values in equation 1, we get:

1.9mol=\frac{\text{Mass of carbon dioxide}}{44g/mol}\\\\\text{Mass of carbon dioxide}=(1.9mol\times 44g/mol)=83.6g

Hence, the amount of carbon dioxide gas produced in the reaction is 83.6 grams

6 0
3 years ago
what is the molarity of a solution prepared by dissolving 1.25g of HCL gas into enough water to make 30cm cube of solution?
Tpy6a [65]
Molars are cavities in your teeth the dentists will scrape them out and fill them in for you at your earliest convinence need help with anything else while im here i can assist you!
4 0
3 years ago
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