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pantera1 [17]
3 years ago
12

Choose all that apply: Living organisms use atoms from sugar molecules combined with other elements to form: Question 9 options:

Lipids Metals Nonmetal atoms Nucleic Acids
Chemistry
1 answer:
Lina20 [59]3 years ago
8 0
Living organisms use atoms from sugar molecules combined with other elements to form lipids and nucleic acids. Lipids are hydrophobic organic compounds composed of carbon and a high ratio of hydrogen to oxygen. Nucleic acids are an acidic polymer of nucleotides found or produced in the cell nucleus. 
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Velocity is the slope of the acceleration vs. time graph.<br>O<br>A. True<br>False​
Maurinko [17]

Answer:

False

Explanation:

The slope of a velocity-time graph gives acceleration. Acceleration can be defined as the change in velocity with time.

A slope denotes the gradient of line. It takes into consideration the changes on both y and x axis. The ratio of the changes gives the slope.

On a velocity-time graph, the y-axis is the velocity and the x-axis is time. The change in velocity with time gives acceleration.

The slope of an acceleration

-time graph is not velocity.

7 0
4 years ago
What is the MOST accurate conclusion can you draw about the vaporization of the substance?
kupik [55]
<span> It requires much more energy to vaporize the substance than to melt it</span>
8 0
4 years ago
Decreasing the temperature of a reaction decreases the reaction rate because
Elza [17]
The answer u are looking for is b
4 0
4 years ago
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10. Predict the mass of nitrogen dioxide produced if 2.30 L of ammonia are allowed to react
Scrat [10]

Answer:

Mass of nitrogen dioxide produced = 4.6 g

Explanation:

Given data:

Volume of ammonia = 2.30 L

Mass of nitrogen dioxide produced = ?

Solution:

Chemical equation:

4NH₃ + 7O₂     →      4NO₂ + 6H₂O

Number of moles of ammonia at STP:

PV = nRT

n = PV/RT

n = 1 atm × 2.30 L / 0.0821 atm.L/K.mol × 273 K

n = 2.30 atm .L / 22.414 atm.L/mol

n = 0.1 mol

Now we will compare the moles of ammonia with nitrogen dioxide from balance chemical equation.

                NH₃            :             NO₂

                 4                :               4

                 0.1             :              0.1

Mass of NO₂:

Mass = number of moles  × molar mass

Mass = 0.1 mol  × 46 g/mol

Mass = 4.6 g

7 0
3 years ago
What is a example of eukaryote
otez555 [7]
Animal cells are eukaryotes because they have a nucleus and other organelles in an enclosed membrane.
7 0
3 years ago
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