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3 years ago

Which tiny, round “factory” puts together protein and is often found in the endoplasmic reticulum?

2 answers:

8 0

In the cytoplasm, ribsomal RNA (rRNA), a type of RNA, and protein combine to form a nucleoprotein called a ribosome. The ribosome serves as the site and carries the enzymes necessary for protein synthesis. They are often takes the shape of small round particles attached in the endoplasmic reticulum. The ribosome attaches itself to m-RNA and provides the stabilizing structure to hold all substances in position as the protein is synthesized. Several ribosomes may be attached to a single RNA at any time.

Charra [1.4K]3 years ago

4 0

I believe that the answer is B , chloroplast. you can work out the problem any other wat too.

i hope this helps

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2Al+ Fe203 Al203 +2Fe

leonid [27]

Answer:

229 g Al₂O₃; 243 g Fe₂O₃

Explanation:

We have the masses of two reactants, so this is a limiting reactant problem.

We know that we will need a balanced equation with masses, moles, and molar masses of the compounds involved.

Step 1. Gather all the information in one place with molar masses above the formulas and masses below them.

M_r: 26.98 159.69 101.96

2Al + Fe₂O₃ ⟶ Al₂O₃ + 2Fe

Mass/g: 121 601

===============

Step 2. Calculate the moles of each reactant

Moles of Al = 121 × 1/26.98

Moles of Al = 4.485 mol Al

Moles of Fe₂O₃ = 601× 1/159.69

Moles of Fe₂O₃ = 3.764 mol Fe₂O₃

===============

Step 3. Identify the limiting reactant

Calculate the moles of Al₂O₃ we can obtain from each reactant.

From Al

The molar ratio is 1 mol Al₂O₃:2 mol Al

Moles of Al₂O₃ = 4.485 × 1/2

Moles of Al₂O₃ = 2.242 mol Al₂O₃

From Fe₂O₃:

The molar ratio is 1 mol Al₂O₃:1 mol Fe₂O₃

Moles of Al₂O₃ = 3.764 × 1/1

Moles of Al₂O₃ = 3.764 mol Al₂O₃

The limiting reactant is Al because it gives the smaller amount of Al₂O₃.

The excess reactant is Fe₂O₃.

===============

Step 4. Calculate the mass of Al₂O₃ formed

Mass of Al₂O₃ = 2.242 × 101.96

Mass of Al₂O₃ = 229 g Al₂O₃

===============

Step 5. Calculate the moles of Fe₂O₃ reacted

The molar ratio is 1 mol Fe₂O₃:2 mol Al:

Moles of Fe₂O₃ = 4.485 × ½

Moles of Fe₂O₃ = 2.242 mol Fe₂O₃

===============

Step 6. Calculate the moles of Fe₂O₃ remaining

Moles remaining = original moles – moles used

Moles remaining = 3.764 – 2.242

Moles remaining = 1.521 mol Fe₂O₃

==============

Step 7. Calculate the mass of Fe₂O₃ remaining

Mass of Fe₂O₃ = 1.521 × 159.69/1

Mass of Fe₂O₃ = 243 g Fe₂O₃

3 0

3 years ago

Which element has the larger Zell

Eddi Din [679]

Answer:

Explanation:

because of potassium and lithium belongs to

alkali metals

6 0

3 years ago

An extremely soluble salt is added to water, and all of it dissolves. Is it at equilibrium? Explain.

alexdok [17]

Once the substance stops dissolving, the system is at equlibrium with the water and the undissolved salt now, if it is in the process of dissolving because it is completely soluble but has not been able to completely dissolve, it is not at equilibrium

5 0

3 years ago

I’ll give Brainliest Faaaaaaast

Bezzdna [24]

Answer:

give me brainliest please?

thank u

Explanation:

8 0

3 years ago

Read 2 more answers

g Which of the following is true of benzene? A) Benzene has the stability expected for cyclohexatriene. B) The carbon-carbon bon

olganol [36]

Answer:

<h2>C) All of the hydrogen atoms of benzene are equivalent.</h2>

Explanation:

Benzene is an aromatic hydrocarbon made up of six carbon atoms and six hydrogen atoms. Each hydrogen atom of the benzene is equivalent to each other. Due to the delocalized electron, it shows resonance property and thus is more stable. Mostly benzene shows substitution reaction than in addition reaction. It shows planarity and follows Huckle's rule. It forms many important derivative aromatic compounds.

6 0

4 years ago