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natta225 [31]
3 years ago
10

What are the two properties of carbon which lead to the huge number of carbon compounds we see around us?

Chemistry
1 answer:
ipn [44]3 years ago
8 0
4 clumping beauty and Gove the other
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Which type of reaction is represented by this graph?
enot [183]

Answer:  

D. Exothermic.  

Explanation:  

Hello there!

In this case, since the potential energy versus reaction progress diagrams are related to the energetic profile of a chemical reaction, we can set the initial point at the beginning of the reaction as the energy of the reactants and the final point as the energy of the products.

Next, since the change in the enthalpy of a reaction is quantified by subtracting products minus reactants, we can see that the products have less energy than the reactants and therefore ΔH for this reaction is negative, which matches with the definition of D. Exothermic  reaction.

Regards!

7 0
3 years ago
Read 2 more answers
A heterogeneous mixture is a
11111nata11111 [884]
A heterogeneous mixture is a mixture in which its components retain their identity. The correct answer is B. 
7 0
3 years ago
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Which nonmetals have similar chemical properties? Check all that apply.
alisha [4.7K]

Answer:

Sulfur

Selenium

Oxygen

Explanation:

You’re welcome:)

7 0
3 years ago
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4 Recall What holds ionic compounds<br> together?
Kazeer [188]

Answer:

The opposite charges of the atoms hold the atoms together. One atom can have a positive charge while the other can have a negative charge and this causes an electrostatic attraction causing the atoms to stick to each other like glue. For example, two magnets, can only be attracted to each other when one side of the magnet has a "-" while the other magnet on one side has a "+". They are attracted to each other by these varying charges. The same applies to ionic compounds which are held together by the varying charges of the ions.

7 0
3 years ago
Why is the concentration of 1.34gvCuCl2 in a volumetric flask with approx. 100mL of water has a concentration of 0.050M?
jarptica [38.1K]
<h3>Answer:</h3>

Concentration will be 0.1 M and not 0.050M

<h3>Explanation:</h3>

This explains why the molarity is not 0.050 M but 0.1 M

Molarity is the concentration of a solution in moles per liter.

Therefore,

Molarity = moles ÷ Volume

In this case,

We have 1.34 g of CuCl₂ and a volume of 100 mL

To get the molarity we need to find the number of moles in 1.34 CuCl₂

Number of moles = Mass÷ molar mass

Molar mass of CuCl₂ = 134.45 g/mol

Therefore,

Moles of CuCl₂ = 1.34 g ÷ 134.45 g/mol

                         = 0.009965 moles

                         = 0.01 moles

Then we can calculate the molarity;

Molarity = Number of moles ÷ Volume

Volume of the solution is 100 mL or 0.1 L

Molarity = 0.01 moles ÷ 0.1 L

            = 0.1 M

Therefore, the concentration of 1.34 g CuCl₂ in a volume of 100 mL is 0.1 M and not 0.050M.

8 0
2 years ago
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