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2 years ago

What protects the cells of plants

Chemistry

2 answers:

gogolik [260]2 years ago

6 0

Explanation:

Plant cells have several structures not found in other eukaryotes. In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls allow plants to have rigid structures as varied as wood trunks and supple leaves; and vacuoles allow plant cells to change size.

storchak [24]2 years ago

4 0

The cell wall is located outside the cell membrane. It consists mainly of cellulose and may also contain lignin , which makes it more rigid. The cell wall shapes, supports, and protects the cell. It prevents the cell from absorbing too much water and bursting.

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CK-12 Boyle and Charles's Laws if Mrs. Pa pe prepares 12.8 L of laughing gas at 100.0 k Pa and -108 °C and then she force s the

nirvana33 [79]

Answer:

The answer to your question is P2 = 2676.6 kPa

Explanation:

Data

Volume 1 = V1 = 12.8 L Volume 2 = V2 = 855 ml

Temperature 1 = T1 = -108°C Temperature 2 = 22°C

Pressure 1 = P1 = 100 kPa Pressure 2 = P2 = ?

Process

- To solve this problem use the Combined gas law.

P1V1/T1 = P2V2/T2

-Solve for P2

P2 = P1V1T2 / T1V2

- Convert temperature to °K

T1 = -108 + 273 = 165°K

T2 = 22 + 273 = 295°K

- Convert volume 2 to liters

1000 ml -------------------- 1 l

855 ml -------------------- x

x = (855 x 1) / 1000

x = 0.855 l

-Substitution

P2 = (12.8 x 100 x 295) / (165 x 0.855)

-Simplification

P2 = 377600 / 141.075

-Result

P2 = 2676.6 kPa

3 0

3 years ago

Which of the following is a pure substance? Choose all that apply.

worty [1.4K]

Nickel is a pure substance

Rust is also a pure substance

7 0

3 years ago

Read 2 more answers

Coefficients and other factors that are used to calculate quantities in a chemical reaction are known as ____________________.

Rom4ik [11]

Answer:

stoichiometric factor

Explanation:

5 0

3 years ago

Chemial name of water

Bond [772]

Dihydrogen monoxide is the chemical name of water because there are two hydrogen molecules and one oxygen molecule

5 0

4 years ago

An atom that has fewer neutrons than protons and more electrons than protons is a(n)

Umnica [9.8K]

Answer:

A solution that has fewer neutrons than protons and more electrons than protons is a negative ion. 

Explanation:

Atoms in their original state have equal number of protons and electrons. The subatomic particles that take part in reaction are electrons. When the electrons of an atom involve in a reaction an atom may lose or gain electrons and reach ionic state.

Ions can be positively charged or negatively charged and the charge acquired depends on whether electrons are gained or lost. The process of losing electrons make an atom a positively charged ion and gaining electrons make an atom a negatively charged ion. 

In this case the number of electrons is more than the number of protons which means there is an excess of negative charge and the atom has become a negatively charged ion. 

8 0

3 years ago