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3 years ago

How do molecules make up cells? Plz help ASAP

Chemistry

2 answers:

IceJOKER [234]3 years ago

5 0

Answer:

They contain atoms that combine together to form molecules. In multicellular organisms, such as animals, molecules can interact to form cells that combine to form tissues, which make up organs. ... All atoms contain protons, electrons, and neutrons.

VashaNatasha [74]3 years ago

4 0

Answer:

molecules combine to form cells and cells join together to form tissue.

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Help! help! plz............

zhuklara [117]

There the picture is the answer from the internet

8 0

3 years ago

Account for the difference in the shape and color of the potential maps for ammonia and the ammonium ion.

Tcecarenko [31]

Answer:

Explained below.

Explanation:

The difference between the two of them will be considered from their electrostatic potential maps.

First of all the major difference is that ammonia molecule(NH3) has a lone lone pair of electron on the N atom.

Due to the this lone pair of electron on the N - atom of ammonia, it's bond angle will be slightly lesser than that of ammonium ion.

Therefore, In the electrostatic potential map of NH3, the charge distribution will not be symmetrical for the fact that there is electron rich N atom and so the N atom will be more red than the 3 hydrogen atoms (H atoms).

Whereas, the electrostatic potential map of NH4+ (ammonium ion) will be symmetrical due to the even/symmetrical distribution of all the 4 hydrogen atoms surrounding the central Nitrogen atom.

Also, the Nitrogen atom here in ammonium ion will have a lower electron density than the Nitrogen atom that's present in ammonia molecule due to the bonding existing between the lone pair electron and the Hydrogen atom

5 0

3 years ago

How many hours per year does a high school student spend in school?

krek1111 [17]

Answer:

Around 1260 hours

5 0

2 years ago

Read 2 more answers

Which of the following small objects are made of ice and dust? (1 point)

Arlecino [84]

The core of a comet is made from ice and dust so B would be the answer.

7 0

3 years ago

Read 2 more answers

hich statement is true? A. An acid with a large pKa will be a better conductor of electricity than one with a smaller pKa. B. An

xz_007 [3.2K]

Answer:

$\boxed{\text{B is correct}}$

Explanation:

Kₐ and pKₐ are measures of the strength of an acid. For example,

HX + H₂O ⇌ H₃O⁺ + X⁻; Kₐ = 10¹⁰, pKₐ = -10

HA + H₂O ⇌ H₃O⁺ + A⁻; Kₐ = 10⁻¹⁰, pKₐ = 10

HX is a strong acid, because it has a larger Kₐ, that is, the position of equilibrium lies far to the right.

However, pKₐ is the negative logarithm of Kₐ, so HX has the smaller pKₐ.

Similarly, Ha is a weak acid, but it has the larger pKₐ.

Strong acid: Large Kₐ ⇔ Low pKₐ

Weak acid: Small Kₐ ⇔ High pKₐ

A is wrong. HA is a weak acid, so it produces only a few hydronium ions.

B is correct. The rate of corrosion depends on the concentration of hydronium ions. HA is a weak acid, so it is less corrosive than an acid with a small pKₐ.

C is wrong. HX is a strong acid, so there are more ions to carry the current. HX will be a good conductor of electricity.

D is wrong. HX is a strong acid, so it provides more hydronium ions and is more corrosive.

E is wrong. HX is a strong acid, so it provides more hydronium ions to stimulate the taste buds.

$\boxed{\textbf{B is correct}}$

7 0

3 years ago