A student is wearing a ring made out of pure copper. If the student accidentally dropped the ring into a beaker of solution, which solution(s) would react with the ring?

Answer:

B. 88%

Explanation:

percent yield is the actual yield divided by the theoretical (predicted) yield, then multiplied by 100 to get a percentage.

110/125 = 0.88

0.88 x 100 = 88%

In chemistry, the term yield also known as the reaction yield represents the measure of the quantity of the moles of a product formed in the reaction to the reactant used. The correct option is B.

The amount of the product actually made compared with the maximum calculated yield is defined as the percent yield. It can also be known as the ratio of the actual yield to the theoretical yield.

The ideal quantity of the product is called the theoretical yield and it is obtained by working a stoichiometry problem. The actual amount of the product formed gives us the actual yield.

The equation of the percent yield is given as:

%yield = Actual yield / Theoretical yield × 100

110 / 125 × 100 = 0.88 × 100 = 88%

Therefore the percent yield of the reaction is 88%.

Thus the correct option is B.

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Answer:

cells comes from preexisting cells through the process of cell division

Answer:

Its name is Sodium Bromide .

Answer:

=>. the chemical Name of NaBr

=>. sodium bromide

hope it helps

Answer:

1. Molecular weight = 333.3 g/mol

2. Strenght = 2222.2 mg/L

Explanation:

First, we need to find molarity (M) from normality (N) as follows:

[tex] N = nM [/tex]      

Where n is the number of OH⁻ = 2

[tex] M = \frac{N}{2} = \frac{0.03}{2} = 0.015 mol/L [/tex]

Now, when the H₃X solution is neutralized with Ca(OH)₂ we have:

[tex]\eta_{H_{3}X} = \eta_{Ca(OH)_{2}} = M_{Ca(OH)_{2}}*V_{Ca(OH)_{2}} = 0.015*0.04 = 6 \cdot 10^{-4} moles[/tex]              

Hence, the molecular weight (MW) of H₃X is:    

[tex] MW = \frac{m_{H_{3}X}}{\eta_{H_{3}X}} = \frac{0.2 g}{6 \cdot 10^{-4} moles} = 333.3 g/mol [/tex]

Finally, we can calculate the strength (S) of this solution in ppm as follows:

[tex] S = \frac{m}{V} = \frac{200 mg}{0.050 L + 0.040 L} = 2222.2 mg/L [/tex]

I hope it helps you!

Answer: Bacteria, some insects, and fungal species are the decomposers of the dead and decaying matter.

Explanation:

The decomposers are the organisms which act and feed on the dead and decaying organic matter so as to obtain energy from it and degrade it to the simple forms that can be utilized by the plants. Bacteria, some insects and fungi that live in the soil and on the decaying matter. The fungi for example decay on the lignin present in the wood so helps in wood decomposition of trees. If the decomposer like fungi are absent the wood mass will not decompose and it will remain as waste and can be used by the plants in the form of nutrients.

Answer:

Plant and animal cells differ in that plants have a large central vacuole, while animals have smaller vacuoles. Plant cells also have cell walls and plastids, while animal cells do not.

Answer:

B. Vacuole

Explanation:

The vacuole holds large amounts of water or food.

Answer:

A

Explanation:

A sorry if not correct

Explanation:

[tex]Na + Cl→Na Cl [/tex]

23 g of Sodium react with 35.5 g of Chlorine.

100g of Sodium will react with :

[tex]( \frac{100}{23} \times 35.5) \: grams \: of \: chlorine[/tex]

Answer:

A

Explanation:

Answer:

B. polar covalent

Explanation:

Answer:

Option A.

Explanation:

Probability is expressed in percent, fraction or in whole numbers

The only one that does not express a probability is 25.

A one in four chance, a fifty percent chance, a three in four chance. These all could be probabilities.

25 doesn't express a probability.

If this is incorrect, please, don't refrain to tell me.

Answer: The answer is 18.01528.

Explanation:

Answer: im pretty sure it is b but a is also good  i going to be honest it a multi chose and i ant good at those

Explanation:

Answer:

yes

Explanation:

CO2 is soluble because water molecules are attracted to these polar areas. The bond between carbon

Answer:

c) Membrane lipids are amphipathic.

Explanation:

A cell can be defined as the structural, fundamental, biological and functional unit of life. Cells are found in all living organisms because they are the basic unit of life.

In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles. Some examples of cell organelles found in all living organisms such as trees, birds, and bacteria include; nucleus, mitochondria, lysosomes, ribosomes, chromosomes, endoplasmic reticulum, cytoskeleton, vesicles, golgi apparatus, and cell membrane.

Cell membrane is the wall of a cell and typically controls what leaves and enters the cell.

A general property of cell membranes is that membrane lipids are amphipathic. All the lipid molecules found in the cell membrane are amphipathic or amphiphilic, which means that they are "water loving" (hydrophilic) with a polar end or "water fearing" (hydrophobic) with non-polar end. Thus, membrane lipids have an end that's soluble in water (polar) while the other end is soluble in fat (non-polar).

The membrane lipids are amphipathic.  

• In the majority of cell membranes in animals, lipids, that is, fatty molecules forms about 50 percent of the mass of the cell.  

• All the molecules of lipid in a cell membrane are amphipathic, that is, they possess a polar end or hydrophilic and non-polar end or hydrophobic end.  

• The phospholipids are the most abundant lipids found in the cell membrane.  

• They have a polar head group and two hydrophobic hydrocarbon tails.  

• It is the amphipathic nature and shape of the molecules of lipids, which makes them to produce bilayers spontaneously.  

Thus, correct answer is option c, that is, membrane lipids are amphipathic.

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Answer:

moving things

Explanation:

kinetic energy is the energy of moving things

Answer:

Dunkin' Donuts

Purple

Charli began dancing at age 3, and was a trained competitive dancer for over 10 years prior to starting TikTok.

Explanation:

Answer:

pink

Explanation:

Answer:

Newer

Explanation:

older fossils and rocks are found in lower strata than younger fossils and rock layers because the top layer fossils have not been there as long as the bottom layer fossils to be found deeper in the ground

Answer:

C. is both an oxidizing and a reducing agent.

Explanation:

Answer:

The relative mass of an electron would be -1.

Answer:

Rutherford overturned Thomson's model in 1911 with his well-known gold foil experiment, in which he demonstrated that the atom has a tiny, high- mass nucleus. In his experiment, Rutherford observed that many alpha particles were deflected at small angles while others were reflected back to the alpha source.

Answer:Static electricity can be created by rubbing one object against another object.

Explanation: This is because the rubbing releases negative charges, called electrons, which can build up on one object to produce a static charge

Answer:

Answer:- 1467 K

Solution:- It asks to calculate the kelvin temperature of the light bulb. Looking at the given info, it is based on ideal gas law equation, PV=nRT.

Answer:

1470 K

Explanation:

Rounded to 3 significant figures.

Answer:

500 ml is in a water bottle

Explanation:

Answer:

You know, i always say no but when i watch one i get addicted so... yeah. thanks for the positive messages

Explanation:

Thank you so much for spreading a postive message.

I dont know who needs to here this and I don't know you but I know life is hard. I know that no one gets it. I know you may feel depressed or stressed or not know who you are. I know that school is really hard right now. I know that you may have suicidal thoughts. I know because I've been there and still am but im getting better everyday. Progress is Perfect. I am always here to talk about it or anything you need.