Name two ways the archaea differ from bacteria

Answers

Answer 1

Answer: apart from their habits , bacteria and archea differ in cell wall structure and membrane lipid composition . A ll bacteria have peptidoglycans in the cells wall where as the archea do not . both also are different in the RNA polymerases and thus in their protein synthesis .I hope that can help you !!:))

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What is the net ionic equation of the reaction below?K2CO3(aq) +CaCl2 (aq) --> 2 KCl (29) + CaCO3(s)

Answers

Answer:

Net ionic equation:

Ca⁺²(aq) + CO²⁻₃(aq) → CaCO₃(s)

Explanation:

Chemical equation:

K₂CO₃ + CaCl₂ → KCl + CaCO₃

Balance chemical equation:

K₂CO₃(aq) + CaCl₂(aq) → 2KCl(aq) + CaCO₃(s)

Ionic equation:

2K⁺(aq) + CO²⁻₃(aq) + Ca⁺²(aq) + 2Cl⁻(aq) → 2K⁺(aq) + 2Cl⁻(aq) + CaCO₃(s)

Net ionic equation:

CO²⁻₃(aq) + Ca⁺²(aq) → CaCO₃(s)

The K⁺(aq) and Cl⁻ (aq) are spectator ions that's why these are not written in net ionic equation. The CaCO₃ can not be splitted into ions because it is present in solid form.

Spectator ions:

These ions are same in both side of chemical reaction. These ions are cancel out. Their presence can not effect the equilibrium of reaction that's why these ions are omitted in net ionic equation.

Final answer:

The net ionic equation for the reaction between K2CO3 and CaCl2 is Ca2+(aq) + CO3^2-(aq) --> CaCO3(s). This is obtained after removing the spectator ions (K+ and Cl-) from the full ionic equation.

Explanation:

The subject of discussion is the net ionic equation for the given chemical reaction between K2CO3(aq) and CaCl2(aq). An ionic equation represents the ions that are present in a chemical reaction, and a net ionic equation only shows the ions that actually participate in the reaction.

To form the net ionic equation, we first write the complete ionic equation. In this case, K2CO3(aq) breaks down into 2 K+(aq) + CO3^2-(aq), and CaCl2(aq) breaks down into Ca2+(aq) + 2 Cl-(aq). The products would be 2 K+(aq) + 2 Cl-(aq) + CaCO3(s).

The net ionic equation is then formed by canceling out the spectator ions (ions that do not participate in the reaction). Here, the spectator ions are K+ and Cl-. So, the net ionic equation is: Ca2+(aq) + CO3^2-(aq) --> CaCO3(s)

Learn more about Net Ionic Equation here:

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Consider the equation CO2 ---> C+ O2. What type of reaction is this? synthesis
decomposition
single displacement
double displacement

Answers

Answer:

decomposition

Explanation:

becoz it is a single compound and it under goes to give two give two or more products

If a gas A is 9 times as heavy as hydrogen,which will diffuse faster and by what factor?

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I know gas will diffuse faster

Please help!!!!its due tomorrow !!!

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#6).
Every 1,000 mL makes 1 L
How many 1,000mL are there in 2,800 mL ?
That's division.
   (2,800 mL) / (1,000 mL) = 2.8 L

#7).
The 'perimeter' means the 'distance all the way around'.
You have to know that both sides of a rectangle are the same length,
and also the top and bottom are the same length.
So the perimeter of this rectangle is

   (2 yd) + (4.5 yd) + (2.yd) + (4.5 yd) = 13 yd .

Oops. The problem wants to know the perimeter in feet.
So you have to know that each yard is the same as 3 feet.
In order to find the number of feet in 13 yards, you have to
take 3 feet 13 times .

   (3 feet) times (13) = 39 feet .

#8).
For this one, you have to know that every 36 inches makes 1 yard.

How many 36 inches are there in 48 inches ?
That's division.
   (48 inches) / (36inches) = 1 and 1/2 yards .

#9).
For this problem, you have to know how to handle a mixed number,
and you also have to know that there are 16 ounces in 1 pound.

Add up the fruit:

             (3-1/2 pounds) + (4 pounds) + 2 pounds) = 9-1/2 pounds

Now, remember that each pound is the same as 16 ounces. So if you
want to find the number of ounces in 9-1/2 pounds, you have to take
16 ounces 9-1/2 times .

     (16 ounces) times (9-1/2) = 152 ounces.
___________________________________

#10).
This one is just adding up some numbers. But after you finish doing that, you have to know that 1,000 meters is called '1 kilometer' .

Add up the distances that Omar ran:

   (1,000 meters) + (1,625 meters) + (1,500 meters) = 4,125 meters

The problem wants to know how many kilometers this is, so you have to figure out how many '1,000 meters' fit into 4,125 meters.

That's division.

   (4,125 meters) / (1,000 meters) = 4.125 kilometers

when you pass the foodstall you can smell what is cooking , explain why this happen by particle theory

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this occurs due to diffusion, the process by which particles move freely to fill up available space. the particles of the gases (from the food)are in constant motion thus they move freely until they reach your nose

What is a bond between a positive and a negative ion called?

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Answer is: ionic bond.

Ionic bond is the electrostatic attraction between oppositely charged ions, cations (positive ions) and anions (negative ions).

For example compound magnesium chloride (MgCl₂) has ionic bond. Magnesium transfers two electrons, form positive cation Mg²⁺, to chlorine, form anion Cl⁻.

Another example, potassium bromide (KBr) is ionic solid, it has ionic bonds.

I think they are called ionic bonds.

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Which of these pairs is in Kingdom Fungi?A.mushrooms and bacteriaB.diatoms and water moldsC.mushrooms and yeastD.protist and virusandMany organisms in Kingdom Fungi grow best in warm, moist conditions. Which of the following is also a characteristic common to organisms in Kingdom Fungi? A.reproduce through sporesB.single celledC.survive without oxygenD.make nutrients through photosynthesis