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dexar [7]
3 years ago
5

Which of the following accurately describes carbon atoms?

Chemistry
1 answer:
katrin2010 [14]3 years ago
7 0
Hello there! 

The answer is A. Carbon atoms can bond to other carbon atoms. In fact, carbon has four electrons to form four bonds with other atoms, including carbon. Carbon is the most common and used element in the world because it makes up all living things. All four main macromolecules also contain carbon.

Hope I helped! ^ω^

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Name the following compound with a polyatomic ion: Na₂SO₄ *
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Answer:

sodium sulfate

Explanation:

For naming an ionic compound with polyatomic anion, the metal is written first using its element name followed by name of the polyatomic anion. Therefore, the compound with Na+Na+ cation and SO2−4SO42− anion is named as sodium sulfate.

6 0
3 years ago
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The students in the picture below are using a globe and a lamp to model the Sun and the Earth. If the model Earth acts the same
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Answer:

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If a molecule can hydrogen bond does it guarantee that it will have a higher boiling point than a molecule that cannot?
sleet_krkn [62]
A molecule that can h-bond will not always necessarily and does not have guarantee to have a higher boiling point than one than cannot have h-bond.
we can take an example of Pentan-2-one that cannot h-bond but instead of this it  has a high boiling point that is 102.3 °C, while propan-1-ol can h-bond but it has a boiling point of 97.2°C, that is lower than the boiling point of Pentan-2-one.
6 0
4 years ago
When coal burns, the reaction
katovenus [111]
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4 0
2 years ago
You have just completed assaying the change in absorbance for an enzyme. The initial absorbance was 0.022; the absorbance after
Hitman42 [59]

Answer:

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Explanation:

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rate= ΔA/time

rate= (final absorbance - initial absorbance) /minutes

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Commonly, a rate is the relation between two quantities measured in different units. For example, the speed of a car is the change in meters (traveled distance) per time (m/s or km/h). For an enzyme, is the same (quantity of product/time).

4 0
3 years ago
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