What are sedimentary rocks made of ?

Answers

Answer 1

Answer:

Sedimentary rocks are made when sand, mud and pebbles get laid down in layers.

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The cell wall is a rigid structure that surrounds plant cells. The materials found in the cell wall protect the plant cells and give plants structural support.Which conclusion can be made given the above information?
The structures of different types of cell organelles are similar.

The functions of most cell organelles are hindered by their structures.

The structure of a cell organelle is directly related to its function.

The function of a cell organelle can change over time.

Answers

Answer:

The correct answer will be option- The structure of a cell organelle is directly related to its function.

Explanation:

The cell wall is a layer formed around the plasma membrane of the plant cell which helps plant cell by providing stiffness and support to the cell. This cell wall provides protection to the plant cells.

Since the presence of cell wall around the plasma membrane shows that it has a specific function and serves an important function of the plant cell, similarly the structure of various organelles present in the cell is related to their function. The best-known example is the inner folding of the mitochondria called cristae to increase the surface area.

Thus, the selected option is the correct answer.

The structure of a cell organelle is directly related to its function because for example, us. Humans have cells throughout their body. In fact, these cells are all the same. But these cells don't perform the same tasks or else we wouldn't be able to walk, sleep, talk, breath, and bend the way we do.

Your shopping cart has a mass of 65 kilograms. In order to accelerate the shopping cart down an aisle at 0.3 m/sec2, what force would you need to use or apply to the cart?

Answers

Assuming there is no friction between the floor and the shopping cart we can solve for the force by using F=m*a. With this F=65*(.3) which gives is the force to be 19.5N

Which substance can not be decomposed by a chemical change?A. Ammonia
B. Carbon
C. Methane
D. Water

Answers

Carbon is the substance can not be decomposed by a chemical change. Therefore, option B is correct.

What is chemical change ?

A chemical change is the transformation of one material into another, the formation of new materials with different properties, and the formation of one or more new substances. It occurs when one substance reacts with another to form a new substance.

Carbon and water Although carbon dioxide and carbonic acid are simpler compounds, they are still compounds. As a result, they can decompose and leave us with the basic elements' hydrogen, oxygen, and carbon. Compounds degrade due to chemical changes.

Elements are pure substances that cannot be broken down using conventional chemical methods such as heating, electrolysis, or reaction. Elements include gold, carbon, silver, and oxygen.

Thus, option B is correct.

To learn more about the chemical change, follow the link;

brainly.com/question/23693316

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Carbon because it an element in comparison to eater for example which is a mixture of hydrogen and oxygen.

Gasoline is a mixture of compounds. A gasoline sample was found to be 2.851% (by mass) octane (C₈H₁₈). 482.6 g of gasoline is combusted to produce gaseous carbon dioxide and gaseous water.Write out the balanced combustion reaction of octane with oxygen gas to form carbon dioxide and water. Submit an image of the balanced reaction.
Show all work.

Answers

Answer:

See below.

Explanation:

The mass of octane in the sample of gasoline is 0.02851 * 482.6 = 13.759 g of octane.

The balanced equation is:

2C8H18(l) + 25O2(g) ----> 16CO2(g) + 18H2O(g)

From the equation, using atomic masses:

228.29 g of octane forms 704 g of CO2 and 324.3 g of H2O

So the mass of CO2 formed from the combustion of 13.759 g of octane = (704 * 13.759) / 228.29

= 42.43 g of CO2.

Amount of water = 324.3 * 13.759) / 228.29

= 19.55 g of H2O.

If I initially have a gas at a pressure of 12 atm, volume of 23 liters, and temperature of 200 K, and then I raise the pressure to 14 atm and increase the temperature to 300 K, what is the new volume of the gas?

Answers

Answer : The volume of gas will be 29.6 L

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

$(P_1V_1)/(T_1)=(P_2V_2)/(T_2)$

where,

$P_1$ = initial pressure of gas = 12 atm

$P_2$ = final pressure of gas = 14 atm

$V_1$ = initial volume of gas = 23 L

$V_2$ = final volume of gas = ?

$T_1$ = initial temperature of gas = 200K

$T_2$ = final temperature of gas = 300K

Now put all the given values in the above equation, we get the final pressure of gas.

$(12atm* 23L)/(200K)=(14* V_2)/(300K)$

$V_2=29.6L$

Therefore, the new volume of gas will be 29.6 L

Hello!

We have the following data:

P1 (initial pressure) = 12 atm

V1 (initial volume) = 23 L

T1 (initial temperature) = 200 K

P2 (final pressure) = 14 atm

T2 (final temperature) = 300 K

V2 (final volume) = ? (in L)

Now, we apply the data of the variables above to the General Equation of Gases, let's see:

$(P_1*V_1)/(T_1) =(P_2*V_2)/(T_2)$

$(12*23)/(200) =(14*V_2)/(300)$

$(276)/(200) =(14\:V_2)/(300)$

multiply the means by the extremes

$200*14\:V_2 = 276*300$

$2800\:V_2 = 82800$

$V_2 = \frac{82800\!\!\!\!\!\!\!\frac{\hspace{0.4cm}}{~}}{2800\!\!\!\!\!\!\!\frac{\hspace{0.4cm}}{~}}$

$V_2 \approx 29.57142857... \to \boxed{\boxed{V_2 \approx 30\:L}}\:\:\:\:\:\:\bf\blue{\checkmark}$

*** Note: the approximation rule says that when the number before the digit 5 is odd, the previous value is raised to the next even number

Answer:

The new volume is approximately 30 Liters

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The use of nuclear energy can have both positive and negative consequences. Which of the following is a positive consequence of using nuclear energy? a. Nuclear energy uses nonrenewable resources. b. Nuclear energy produces little air pollution. c. Uranium ore used for nuclear power plants must be mined and processed. d. Nuclear energy has no environmental impact. Please select the best answer from the choices provided A B C D

Answers

Answer

its B

Explanation:

Nuclear energy produces little air pollution.

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