Can plants and animals adapt more easily to slow environmental changes or fast environmental changes? Explain.

Chemistry

2 answers:

Goshia [24]3 years ago

8 0

Answer:

Explanation:

Tanya [424]3 years ago

7 0

Question number 1 is D and Question 2 is C

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Look closely at the valence electrons in all eight columns of your table from part C. Which element's location does not

maw [93]

Answer: helium(He)

Explanation: Helium has only 2 electrons in the outermost energy level, but all of the other elements in its column have eight.

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3 years ago

Boron has an atomic mass of 10.811. What does this mean?

icang [17]

Answer:

Knowing that boron has an atomic mass of 10,811 means that all boron isotopes on average weigh 10,811 u.

Explanation:

The atomic mass of an atom is the mass of the atom measured in u (unified atomic mass unit), although we can also express it as Da (Dalton's unit)

Atomic mass refers to the average mass that all isotopes of that element have.

When we speak of isotopes we are referring to the element itself but with a different number of neutrons, which makes it modify its mass number.

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3 years ago

Tetrachloromethane,CC15,is classified as a

prohojiy [21]

Correct Answer: compound because the atoms of the elements are combined in a fixed proportion.

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4 years ago

2. Which of the following is true about a carbonated soft drink?. . The carbon dioxide is the solvent, and water is the solute..

const2013 [10]

A carbonated soft drink hs a large amount of water dissolved with ample amount of carbon dioxide. In this case, the solvent is water and carbon dioxide is the solute. In 2, for the reaction CH3COOH = CH3COO + H+, CH3COOH is a Bronsted-Lowry acid because it releases a proton which is H+.

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3 years ago

Read 2 more answers

What type of bond is this combination likely to form

kari74 [83]

Answer:

A combination is certainly possible, but you should not take formal charges so literally

Normally, when a covalent bond is found, the two atoms both bring in one electron. As you identify correctly, in the case of nitric acid that would not be possible completely. If you draw the different possible resonance structures, the most likely structure has a single bond between the nitrogen and an oxygen where the oxygen has 3 lone pairs and both electrons in the bond are donated by the nitrogen. This makes the nitrogen "positive" and that oxygen "negative", but in fact the electrons move more freely in the molecule and charges are more distributed. You will not be able to find "the negatively charged" oxygen atom.

Explanation:

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3 years ago