Enzymes are proteins made from what basic building blocks?

Answer:

The ocean is made up of salt water, which is a combination of fresh water, plus minerals collectively called "salts." These salts aren't just sodium and chloride (the elements that make up our table salt), but other minerals such as calcium, magnesium, and potassium, among others.

Explanation:The answer is since particles can be found in ocean water It is a compound, since it results from the combination of elements It is a solution

Answer:

I'm sorry, but I cannot see the observations or the data table you mentioned in your question. However, I can still provide you with some general guidance on how to approach the calculations and answer the questions based on the given information.

4. To calculate the concentration of the NaOH solution, you need to know the mass of NaOH used and the volume of the solution. The formula to calculate concentration is:

Concentration (in mol/L) = (Mass of NaOH (in grams) / molar mass of NaOH) / Volume of solution (in L)

Make sure to convert the mass of NaOH to moles by dividing it by the molar mass of NaOH. The molar mass of NaOH is the sum of the atomic masses of sodium (Na), oxygen (O), and hydrogen (H).

5. The balanced equation for the neutralization reaction between NaOH and HCl is:

NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l)

(aq) represents an aqueous solution, and (l) represents a liquid.

6a. To calculate the average concentration of HCl in the sample from site B, you need to know the volumes and concentrations of the NaOH and HCl solutions used in the titration. Use the formula:

Concentration of HCl (in mol/L) = (Volume of NaOH solution (in L) * Concentration of NaOH (in mol/L)) / Volume of HCl solution (in L)

Multiply the volume of NaOH solution used by its concentration to find the amount of NaOH used. Then, divide this amount by the volume of HCl solution used to find the concentration of HCl.

6b. To determine the pH of the water at site B, you need to know the concentration of HCl from the previous calculation. The pH can be calculated using the formula:

pH = -log10[H+]

Since HCl is a strong acid, it dissociates completely into H+ ions. Therefore, the concentration of H+ ions is equal to the concentration of HCl. Take the negative logarithm (base 10) of the H+ concentration to find the pH.

To check if the water is safe, compare the calculated pH value to the range provided (pH 4.5-7.5). If the pH falls within this range, the water is considered safe for plant and animal reproduction in an aquatic environment.

6c. Use a similar calculation as in 6a to determine the average concentration of HCl in the sample from site C.

6d. Use the concentration of HCl from 6c to calculate the pH using the formula in 6b. Follow the same procedure to check if the water is safe based on the pH range.

7. To find the most current pH value for the Grand River, you can search for the latest data from reliable sources such as environmental agencies, research institutions, or government websites. Compare this pH value to the pH values obtained in the experiment to assess the difference between them.

Remember, without the specific data and observations, the calculations and comparisons provided here are only general guidelines. It's important to use the actual data from your experiment to obtain accurate results and conclusions.

Please mark as Brainliest

It will take approximately 225.09  minutes to plate out 16.22 g of Al metal from a solution of Al³⁺ using a current of 12.9 amps in an electrolytic cell.

According to Faraday's Law, which states that the amount of metal plated out in an electrolytic cell is directly proportional to the amount of charge passed through the cell. The formula for Faraday's Law is:

moles of metal plated = (current in amps x time in seconds) / (Faraday's constant x charge on metal ion)

We can rearrange this formula to solve for time in seconds:

time in seconds = (moles of metal plated x Faraday's constant x charge on metal ion) / current in amps

First, we need to calculate the moles of aluminum plated out:

moles of Al = mass of Al / molar mass of Al

moles of Al = 16.22 g / 26.98 g/mol

moles of Al = 0.6019 mol

The charge on an Al³⁺ ion is +3. The Faraday constant is 96,485 C/mol. Plugging these values into the formula above, we get:

time in seconds = (0.6019 mol x 96,485 C/mol x 3) / 12.9 amps

time in seconds = 13505.65 seconds

To convert seconds to minutes, we divide by 60:

time in minutes = 13505.65 seconds / 60

time in minutes = 225.09 minutes

To know more about faraday's law here

https://brainly.com/question/31415235

#SPJ4

The following conversions from moles to liters and vice versa are:

5 moles H₂O x (22.4 L H₂O/1 mole H₂O) = 112 L H₂O

10 mole O₂ x (22.4 L O₂/1 mole O₂) = 224 L O₂

500 L H₂ x (1 mole H₂/22.4 L H₂) = 22.3 moles H₂

85 L Br₂ x (1 mole Br₂/44.6 L Br₂) = 1.91 moles Br₂

100 L He x (1 mole He/22.4 L He) = 4.46 moles He

8 moles Cl₂ x (22.4 L Cl₂/1 mole Cl₂) = 179.2 L Cl₂

22.4 L x (1 mole/22.4 L) = 1 mole

1000 L Ne x (1 mole Ne/22.4 L Ne) = 44.6 moles Ne

11 moles Cl₂ x (22.4 L Cl₂/1 mole Cl₂) = 246.4 L Cl₂

The number of moles of gas in a given volume can be calculated using the ideal gas law: PV = nRT, where P = pressure, V = volume, n = number of moles, R = ideal gas constant, and T = temperature in Kelvin.

Assuming standard temperature and pressure (STP), which is 0°C (273.15 K) and 1 atm, respectively, the calculation would be:

PV = nRT

(1 atm) (55.5 L) = n (0.0821 L•atm/mol•K) (273.15 K)

n = (1 atm) (55.5 L) / (0.0821 L•atm/mol•K) (273.15 K)

n = 2.12 mol

Therefore, the balloon contains approximately 2.12 moles of gas.

Find out more on STP here: https://brainly.com/question/27100414

#SPJ1

The concentration of hydroxide ions after a chemical reaction has occurred is  0.1 mol/L.

To calculate the concentration of hydroxide ion after the chemical reaction has occurred, first, consider the reaction between NH₃ and NaOH:

NH₃ + NaOH → NH₄⁺ + OH⁻

4.00g of NaOH is equivalent to (4.00 g / 40.00 g/mol) = 0.1 mol. Since the volume of the solution is 1.00 L, the initial concentration of NaOH is 0.1 mol/L.

As the reaction proceeds, NaOH reacts with NH₃, which is present at 0.50 M. Let's assume x mol of NH₃ reacts with NaOH. Then, the change in the concentration of NH₃ and NaOH is -x and the change in the concentration of NH₄⁺ and OH⁻ is +x.

At equilibrium, the concentrations are as follows:

[NH₃] = 0.50 - x

[NaOH] = 0.1 - x

[NH₄⁺] = 0.50 + x

[OH⁻] = x

Since the reaction goes to completion, the limiting reactant will be NaOH. Thus, x = 0.1 mol/L, and the concentration of hydroxide ion after the chemical reaction has occurred is 0.1 mol/L.

Learn more about hydroxide ions:

https://brainly.com/question/14576028

#SPJ11

Answer:

this is the minutes and hours this is representing

Answer:

The reason might be that the material that the fridge is made out of is not magnetic, meaning that it's not attracted to metal.

The limiting reactant when 10.0 g of carbon monoxide and 15.0 g of iron ii oxide (Fe₂O₃) are allowed to react completely to form carbon dioxide and iron is the iron III oxide (Fe₂O₃).

Convert the mass of each reactant to moles.

moles CO = mass CO / MM CO

moles CO = 10.0 g / (28.01 g / mol)

moles CO = 0.3570153517

moles Fe₂O₃ = mass Fe₂O₃ / MM Fe₂O₃

moles Fe₂O₃ = 15.0 g / (159.69 g /mol)

moles Fe₂O₃ = 0.09393199324

Determine the balanced chemical equation for the reaction of carbon monoxide and iron oxide.

2 Fe₂O₃ + 6 CO ⇒ 6 CO₂ + 4 Fe

Based on the balanced chemical equation, the mole ratio is

2 moles Fe₂O₃ : 6 moles CO : 6 moles CO₂ : 4 moles Fe

For 0.09393199324 moles Fe₂O₃, it will require 0.2817959797 moles CO. While for 0.3570153517 moles CO, it will require 0.1190051172 moles Fe₂O₃.

Hence, the limiting reactant is the iron III oxide (Fe₂O₃).

Learn more about limiting reactants here: brainly.com/question/21109605

#SPJ4

Answer: The density of KCl is 4.33 g cm-3.

Explanation

The density of InAs is calculated by dividing the atomic mass of the compound by the volume of the unit cell. The volume of the unit cell can be calculated by cubing the lattice parameter. The atomic mass of InAs is 189.74 g mol-1. Therefore, the density of InAs is:

Density of InAs = 189.74 g mol-1 / (0.606 nm)3 = 5.94 g cm-3

The density of CdO is calculated by dividing the atomic mass of the compound by the volume of the unit cell. The volume of the unit cell can be calculated by cubing the lattice parameter. The atomic mass of CdO is 128.41 g mol-1. Therefore, the density of CdO is:

Density of CdO = 128.41 g mol-1 / (0.4695 nm)3 = 7.29 g cm-3

The density of KCI is calculated by dividing the atomic mass of the compound by the volume of the unit cell. The volume of the unit cell can be calculated by cubing the lattice parameter. The atomic mass of KCI is 74.55 g mol-1. Therefore, the density of KCI is:

Density of KCI = 74.55 g mol-1 / (0.629 nm)3 = 4.33 g cm-3

"zinc blende structure", https://brainly.com/question/31055588

SPJ11

Answer:

your answer gonna be 20 miles

Answer:

Number of Significant Figures: 5

The Significant Figures are 3 8 9 1 3

Explanation:

3.57 × 109

=

389.13

Explanation:

Using the formula ΔTb = Kb x molality, where ΔTb is the change in boiling point, we can solve for it and add it to the boiling point of pure water to find the boiling point of the KCl solution.

ΔTb = Kb x molality

ΔTb = 0.512 °C/m x 0.74 molal

ΔTb = 0.37968 °C

Boiling point of KCl solution = 100.00 °C + 0.37968 °C

Boiling point of KCl solution = 100.38 °C

Therefore, the boiling point of the KCl solution is 100.38 °C.

The final molarity of potassium cation in the solution is 0.759 M.

What is the equation for calculating the molarity of a solute in a solution?

The final molarity of potassium cation in the solution is 0.759 M.

To learn more about molarity from the given link:

https://brainly.in/question/1159016

#SPJ1

Dysfunction or problems requiring treatment may involve addressing structural instability in joints, improving low-level and high-level endurance, maintaining and improving range of motion, and maintaining or increasing strength. These treatments can be tailored to the individual's specific needs and may involve various approaches such as physical therapy, exercise, or even surgery in some cases. Dysfunction or problems requiring treatment may be around issues such as:

Step:1. Structural instability (re Joints): This refers to a lack of stability in the joints, which can result in pain, discomfort, and reduced mobility. Treatment may involve physical therapy, bracing, or even surgery to address the instability and improve joint function.
Step;2. Low-level Endurance: Low-level endurance issues can be a result of deconditioning or other health conditions. Treatment may include a gradual increase in physical activity and exercises designed to build endurance over time.
Step:3. Maintaining and improving Range of Motion (ROM): Limited ROM can be caused by various factors such as injuries or muscle imbalances. Treatment may involve stretching exercises, joint mobilization, or other techniques to improve flexibility and joint movement.
Step:4. Maintaining and/or increasing Strength: Weakness in muscles can lead to dysfunction and injuries. Treatment may include resistance training, functional exercises, and other strengthening techniques to build and maintain muscle strength.
Step:5. High-level endurance: For individuals requiring enhanced endurance for athletic performance or other reasons, treatment may involve advanced training techniques, sports-specific exercises, and other approaches to improve high-level endurance.

Learn more about Dysfunction here, https://brainly.com/question/28297588

#SPJ11

Answer:

The answers are B and D.

Explanation:

This is because neutralisation process that contain sodium, potassium and ammonium will produce salt and water.

Answer:

The answer is nuclear

Explanation:

The Sun is a main-sequence star, and, as such, generates its energy by nuclear fusion of hydrogen nuclei into helium.

The preparation of benzalacetophenone using 3-nitrobenzaldehyde and acetophenone can be achieved through a crossed Cannizzaro reaction followed by an aldol condensation. Here's a possible mechanism:

1. In the first step, 3-nitrobenzaldehyde undergoes a Cannizzaro reaction with sodium hydroxide (NaOH) to form the corresponding carboxylic acid and alcohol:

  3-nitrobenzaldehyde + NaOH → 3-nitrobenzoic acid + 3-nitrobenzyl alcohol

2. Meanwhile, acetophenone undergoes aldol condensation in the presence of a base, such as sodium hydroxide or sodium ethoxide, to form an enolate ion:

  Acetophenone + NaOH → Acetophenone enolate

3. The enolate ion of acetophenone then reacts with the 3-nitrobenzyl alcohol formed in step 1 through an aldol condensation reaction. The enolate attacks the carbonyl carbon of 3-nitrobenzaldehyde, leading to the formation of the final product, benzalacetophenone:

  Acetophenone enolate + 3-nitrobenzyl alcohol → Benzalacetophenone + NaOH

Learn more about Cannizzaro reaction  here: brainly.com/question/9425460

#SPJ11

Pretty sure its Physical Changes

No chemical reaction is happening.

Answer:

Changes of states are physical changes

Explanation:

They are reversible changes that do not involve changes in matter's chemical makeup or chemical properties.

PLEASE MARK BRAINLIEST

Right Now Please <_> I really need it to level up

Answer: 50 kg

Explanation: formula is

m= p/v

m=800 kg m/s : 16m/s

m= 50kg

idk tho hope this helps

The original concentration is 259,000,000=2.6 x 10-8.

OCD=CFU/original cell volume

259/10-6=259,000,000=2.6 x 10-8

Concentration is a totally commonplace idea utilized in chemistry and associated fields. It's far the degree of the way an awful lot of a given substance there may be combined with some other substance.

The concentration of an answer is the degree of the amount of solute that has been dissolved in a given amount of solvent or solution. A concentrated solution is one that has a fantastically large amount of dissolved solute.

In chemistry, concentration refers to the quantity of a substance in a defined space. Any other definition is that attention is the ratio of solute in a solution to either solvent or overall answer.

Learn more about Concentration here:-brainly.com/question/26255204

#SPJ4

✅Energy exists in many different forms✅

Examples of these are: light energy, heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy and so on. Each forms can be converted or changed into the other forms.

IamSugarBee

Answer:

I believe its c

Explanation:

i'm doing it on edge, let me know if i'm wrong

Answer:

The answer is C.)Protons have an electrical charge, but neutrons have no charge.

Explanation:

I got it right on edge

The total heat energy required is expressed according to the formula:

where:

Qvap is the heat energy absorbed by the vapor

Qw is the heat energy absorbed by the water

Get the heat energy absorbed by the vapor at 100 degrees

Given the following parameters;

Mass of water = 100g

Molar mass of water (H2O) = 18.015g/mol

Hvap,w = 2259 J/g = 40.8 kJ/mol

Substitute the given parameters into the formula to have:

Get the heat absorbed by the water from 30 to 100 degrees and from 100 to 110 degrees using the formula below. Note that the water vapor is being heated without any phase changes, so we will be utilizing the specific heat capacity of water vapor.

Get the total heat energy required;

Answer:

Sand dunes are created when wind deposits sand on top of each other until a small mound starts to form. Once that first mound forms, sand piles up on the windward side more and more until the edge of the dune collapses under its own weight.

Answer: Copper is purified by electrolysis . Electricity is passed through solutions containing copper compounds, such as copper(II) sulfate. The anode (positive electrode ) is made from impure copper and the cathode (negative electrode) is made from pure copper. Pure copper forms on the cathode.

Answer:

b 2.00

Explanation:

I am pretty sure that is right

Answer:

B. bromelain

Explanation:

Pineapple also contains a digestive enzyme called bromelain, which is a mixture of proteolytic enzymes and has been chemically known since 1876 (Taussig and Batkin, 1988).

\( \mathrm\pink{Almost \: all \: fossils \: are \: in \: sedimentary \: rocks.} \)