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shutvik [7]
2 years ago
10

Which two substances are among the four major types of organic compounds made by living things?

Chemistry
1 answer:
scoundrel [369]2 years ago
8 0

Answer:

D:)

Explanation:

Lipids

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Please help me thanks so much
Nitella [24]

Answer:

the answer is in the next one I just answered

8 0
3 years ago
Sound travels at a rate of 340 m/s in all directions through air. Matt rings a very loud bell at one location, and Steve hears i
tia_tia [17]
450/340=1.3
1.3 sec is the answer because you take the distance and divid by the rate

4 0
3 years ago
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1.Chlorobenzene, C6H5Cl, is used in the production of chemicals such as aspirin and dyes. One way that chlorobenzene is prepared
miv72 [106K]

Answer:

m_{C_6H_5Cl}=65.7gC_6H_5Cl

Explanation:

Hello!

In this case, according to the given balanced chemical reaction:

C_6H_6 (l) + Cl_2 (g) \rightarrow C_6H_5Cl (s) + HCl (g)

We can see there is 1:1 between benzene and chlorobenzene as the relavant product; thus, since the molar mass of benzene is 78.11 g/mol and that of chlorobenzene is 112.55 g/mol, the theoretical yield for this reaction turns out:

m_{C_6H_5Cl}=45.6gC_6H_6*\frac{1molC_6H_6}{78.11gC_6H_6 }*\frac{1molC_6H_5Cl}{1molC_6H_6}*\frac{112.55gC_6H_5Cl}{1molC_6H_5Cl}   \\\\m_{C_6H_5Cl}=65.7gC_6H_5Cl

Best regards!

8 0
3 years ago
11. What is another name for the transition metals? Group B elements noble gases Group A elements Group C elements
finlep [7]

Answer:

Group B elements

Explanation:

Group B metals are referred to as transition metals. They are located in the middle of the periodic table between Group IIA and Group IIIA. They provide transition between the "base formers" on the left and "acid formers" on the right.

3 0
3 years ago
Chemists use the periodic table to organize the elements. What are some ways in which this organization is useful? Select all th
max2010maxim [7]

Answer: Another useful feature of the periodic table is that most tables provide all the information you need to balance chemical reactions at a glance. The table tells each element's atomic number and usually its atomic weight. The typical charge of an element is indicated by its group.

Explanation:

7 0
2 years ago
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