3 years ago

Which two characteristics do all flowering plants have in common?

Chemistry

1 answer:

Mamont248 [21]3 years ago

4 0

Answer: They have vessels, and produce seeds.

Explanation: Flowering plants have vascular tissue and use seeds to reproduce.

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Chemical bonds release energy when they break apart, and take in energy when they form. How does this observation help explain t

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ENERGY WOULD BE RELALISED, MEANING BONDS ARE BEING BROKEN, SO IT IS AN EXOTHERMIC REACTION

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3 years ago

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2. Sodium reacts with oxygen to form sodium oxide and has the following balanced chemical equation: 4 Na + O2 --> 2 Na2O. Whe

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The monovalent salt concentration (the predominant solute in the blood cell) for a sample of red blood cells is 0.13 moles/liter

11111nata11111 [884]

Answer:

The osmotic pressure of cell is $648.3$ KPa

Explanation:

As we know the osmotic pressure is equal to

$\pi = icRT$

Where

i is the Van Hoff factor

c is the concentration of solution

R is the ideal gas constant

and T is the temperature.

Substituting the given values, we get -

$\pi = 2 * 0.13 * 0.08206 * 300\\$

$\pi = 648.3$ KPa

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3 years ago

Which of the following would not be considered an observation in terms of the scientific method?

prohojiy [21]

Answer:

the first option, tasting a pasta sauce after adding a new ingredient.

Explanation:

tasting a pasta sauce after adding a new ingredient is not an observation because there is no qualitative or quantitative data to be taken from that experience.

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If earth was a hard boiled egg,which part of earth would the egg white represent?

romanna [79]

Answer:

The egg white will represent the outer layer which is the we are located on!

Explanation:

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3 years ago