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2 years ago

Which of the following best describes the relationship between cells in living things in general?

Chemistry

2 answers:

vfiekz [6]2 years ago

7 0

The answer is b all living thing are

Lostsunrise [7]2 years ago

7 0

Answer:

The correct option is B

Explanation:

A cell is the structural and functional unit of life. Cells "operate" on the basis of the cell theory. The cell theory states that

cells are the structural and functional unit of life
all living organisms are made up of one or more cells
all cells come from pre-existing cells

From the above, it can be deduced that option B is part of the cell theory. When organisms are made up of one cell, they are called unicellular organisms and when organisms are made up of more than one cell, they are called multicellular organisms.

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Breaking bonds requires what type of energy flow?

Rufina [12.5K]

Explanation:

the energy that that is needed to break a bond is called the bond energy or dissciation energy

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3 years ago

λmax for the π → π* transition in ethylene is 170 nm. Is the HOMO-LUMO energy difference in ethylene greater than or less than t

-Dominant- [34]

Answer:

the HOMO-LUMO energy difference in ethylene is greater than that of cis,trans−1,3−cyclooctadiene

Explanation:

The λmax is the wavelength of maximum absorption. We could use it to calculate the HOMO-LUMO energy difference as follows:

For ethylene

E= hc/λ= 6.63×10^-34×3×10^8/170×10^-9= 1.17×10^-18J

For cis,trans−1,3−cyclooctadiene

E= hc/λ=6.63×10^-34×3×10^8/230×10^-9=8.6×10^-19J

Therefore, the HOMO-LUMO energy difference in ethylene is greater than that of cis,trans−1,3−cyclooctadiene

8 0

2 years ago

SEP Engage in Argument A classmate claims that state of matter is an extensive property because it can vary with temperature. Fo

Andrews [41]

Answer: I agree with the student because in the question prior to this One question stated thatExtensive properties very with the amount of matter ina sample, so yes i agree.

Explanation:

4 0

3 years ago

What is the mass of a sample of water that takes 2000 kJ of energy to boil into steam at 373 K. The latent heat of vaporization

zzz [600]

Answer:

$\boxed{\text{889 g}}$

Explanation:

The formula relating the mass m of a sample and the heat q to vaporize it is

q = mL, where L is the latent heat of vaporization.

$\begin{array}{rcl}2000 \times 10^{3} \text{ J} & = & m \times \dfrac{2.25 \times 10^{6} \text{ J}}{\text{1 kg}}\\\\m & = & \dfrac{2000 \times \times 10^{3}\text{ kg}}{2.25 \times 10^{6}}\\ & = & \text{0.889 kg}\\\\ & = & \text{889 g}\\\end{array}\\\text{The mass of water is $\boxed{\textbf{889 g}}$}$

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2 years ago

HELP PLEASE I WILL GIVE 100 PONTS

pochemuha

Answer:

boiling point

Explanation:

5 0

3 years ago

Read 2 more answers