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3 years ago

Please reply really quickly. Do not reply if you do not know.

Chemistry

2 answers:

diamong [38]3 years ago

7 0

Answer:

Explanation:

Red Blood Cell- Carry Oxygen - Large Surface area no nucleus

Sperm Cell- Fertilize the Egg- tail, lots of mitochondria

Palisade Cell- Photosynthesis- Lots of chloroplast and transparent

krok68 [10]3 years ago

7 0

<h2>ANSWER:</h2><h2>_____________________________________</h2>

Palisade Cell; are plant cells located on the leaves, right below the epidermis and cuticle. So they carry Process of Photosynthesis and carry lots of chloroplast, and are transparent.

Sperm Cell; are gametes (sex cells) that are produced in the testes (gonad) of male human beings and animals. So They fertilize egg and have tail, lots of mitochondria enzyme in the head, streamlined.

Red Blood Cells; A type of blood cell that is made in the bone marrow and found in the blood. Red blood cells contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body. So they carry oxygen and have large surface area and nucleus

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What is constant on wet asphalt?

wariber [46]

Answer:

Friction and Automobile Tires. ... On dry surfaces you might get as high as 0.9 as a coefficient of friction, but driving them on wet roads would be dangerous since the wet road coefficient might be as low as 0.1

Explanation:

hope this helps

6 0

3 years ago

How many moles are in 123.0g (NH4)2SO4

Luda [366]

Here you go! There are 0.9307 moles in 123.0 g of the compound. I solved this by using a fence post method. I calculated the number of grams in one mol of (NH4)2 SO4 and got 132.16.

I did this by finding the atomic mass of each element on the periodic table (my work is in the color blue for this step)

After that, i divided the given mass by the mass of one mol of the compound.

The answer is 0.9307 moles!! I hope this helped you! :))

7 0

2 years ago

If a sample of N2 gas has an initial pressure of 500 Torr and volume of 0.5 L, what will the final volume be if the pressure is

kherson [118]

Answer:

V₂ = 0.4 L

Explanation:

P₁ (initial pressure) = 500 torr
V₁ (initial volume) = 0.5 L
P₂ (final pressure) = 700 torr

<u>Wanted:</u>

V₂ (final volume)

<u>Equation:</u>

P₁V₁ = P₂V₂ → V₂ = P₁V₁ / P₂

<u>Solution:</u>

V₂ = $\frac{(500 torr)(0.5 L)}{700 torr}$ = 0.3571 L or 0.4 L

8 0

2 years ago

Using principles of atomic structure, explain why the atomic radius of Te is less than the ionic radius of Te2− . Photoelectron

ValentinkaMS [17]

Answer:

See explanation

Explanation:

Let us recall that a negative ion is formed by addition of electrons to an atom. When electrons are added to the atom, greater interelectronic repulsion increases the size of the Te^2− hence it is greater in size than Te atom. Therefore, the ionic radius of Te^2− is greater than the atomic radius of Te.

In the second question, oxygen is positioned so far to the right because it has a far smaller nuclear charge compared to Te. Hence in the PES spectrum, the 1s sublevel of oxygen lies far to the right of that of Te.

3 0

2 years ago

Which type of bonding is characterized by overlapping orbitals that allow outer electrons of atoms to move about freely througho

Sonja [21]

Answer:

D metallic

Explanation:

The chemical bonding which rises from electrostatic attractive force between the conduction electrons and the positively charged metal ions is called metallic bonding.

<u>It is sharing of the free electrons among the structure of the positively charged ions which are known as cations. </u>

<u>In this type of bonding, these free electrons freely move in the crystal mattice of the metal. </u>

The bonding accounts for properties of metals, such as ductility, strength, electrical and thermal conductivity and resistivity and luster.

6 0

3 years ago

Please reply really quickly. Do not reply if you do not know.​

Please reply really quickly. Do not reply if you do not know.