The reaction of an acid and a base produce water and a
Answers
Answer:
The answer is " salt".
Explanation:
Hey there!
When any acids and base react with eachother, they forms water and respective salts.
For example:
HCl + NAOH = NACl + H2O.
Hope it helps!
Related Questions
is the moon bigger than neptune
Answers
Answer:
Neptune is bigger than the moon
Explanation:
The circumference of the moon is 6,783.5 miles
The circumference of Neptune is 96,129 miles
This means neptunes circumference is about 14 times the size of the moons
Changes in either _______ or _______ can cause a change in the state of matter.
A. Temperature or Pressure
B. Temperature or Matter
C. Matter or Pressure
Answers
Answer:
A. Temperature or Pressure
Explanation:
How are the vapor pressure and boiling point of alkynes affected as the chain length increases?
Answers
Answer:
Answer to the following question is as follows;
Explanation:
Alkynes' vapour pressure and normal boiling points are altered when chain length grows, since vapour pressure rises while boiling point falls.
Vapour pressure always include pressure entered by vapour with its condensed phase, pressure include molecules force of attraction include vapour
An ice freezer behind a restaurant has a freon leak, releasing 41.44 g of C2H2F3Cl into the air every week. If the leak is not fixed, how many kilograms of fluorine will be released into the air over 6 months? Assume there are 4 weeks in a month. mass of fluorine leaked over 6 months
Answers
Answer:
994.56
Explanation:
41.44 multiplied by 4, that gives us a month.
Then multiply by 6.
what can make ice melt slower
Answers
Answer:
keep the ice in low heat temperature room or else the best way is to keep it in a very very cold room
Explanation:
As low heat it will melt slower and the second one explanation if you keep it in a cold room temperature it can stay for a long time
Which statement is true?
Ozone is always good because it is made from oxygen.
Ozone is good in the stratosphere and bad at ground level.
Ozone is bad no matter where it is.
Answers
Answer: the second one for sure HOPE IT HELPD HAVE A AWSOME DAY :))))))))
Explanation:
Which of the following describes how a recycling program directly benefits a community economically? The guarantee of no new landfills or incinerators O Fewer city taxes than in non-recycling communities O More potential employment opportunities and revenue O Higher property values than non-recycling communities Mark this and return
Answers
Answer:
I guess second option i.e. More potential employment opportunities and revenue because collecting recyclable material needs manpower to collect them, and secondary employment in transport i.e. to collect all the material at one place we need transport and so on!
what is the purpose of chemistry?
Answers
Answer:
To know more about chemicals and how to utilise them to solve man's probl
Name two drying agents that can be use to dry hydrogen gas
Answers
Question 24 I WILL GIVE 100 POINTS
(02.01 MC)
Two different atoms have four protons each and the same mass. However, one has a positive charge while the other is neutral. Describe what each atomic structure could be, listing the possible number and location of all subatomic particles.
Answers
Answer:
hopefully this is the answer you may be looking for
Read the water level with the correct number of significant figures.
1) 5 mL
2) 5.3 mL
3) 5.32 mL
4) 5.320 mL
5) 5.3200 mL
Answers
Answer:
the answereis is 5 ml
Explanation:
hope thhis helped.
at 15 degress celcius, the water ionization constant, k2 is 4.5 * 10^-15. what is th h3o concentration in neutral water at this temperature
Answers
The H3O+ concentration of neutral water at 15 degrees Celsius is 10^-7 M.
As per the given information, the water ionization constant k2 is 4.5 × 10^-15 at 15 degrees Celsius. The H3O+ concentration of neutral water at this temperature can be determined using the formula:
Kw = [H3O+][OH-]Here, Kw represents the ionic product of water which is equal to 1.0 × 10^-14 at 15 degrees Celsius (which can be looked up in a table).
Since we know that pure or neutral water has an equal concentration of H3O+ and OH- ions, we can assume that the concentration of OH- ions is also 1.0 × 10^-7 M.
Therefore, we can substitute the values in the equation to obtain:
[H3O+][OH-] = 1.0 × 10^-14[H3O+] [1.0 × 10^-7]
= 1.0 × 10^-14[H3O+]
= 1.0 × 10^-7 ÷ 1.0 × 10^-14[H3O+]
= 10^7The H3O+ concentration of neutral water at 15 degrees Celsius is 10^-7 M (or 0.0000001 M).
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Please answer it in 1 hour Write explanation if it needed I’ll give you upvote immediately Don’t use excel to solve this question i In a bond amortization schedule, what does the book value mean?Describe in words. (ii) Consider a n-period coupon bond where the redemption amount, C may not be the same as the face amount, F. Using j and g to represent the yield rate per period and modified coupon rate per period respectively, show that,for k = 01,2,n, the book value at time k,B is B=C+Cg-jan-kj and the amortized amount at time k is ii Let K = Cu. The Makeham formula to compute the price of a bond is given by A verbal interpretation for K would be that K is the present value of the redemption value C.Provide a verbal interpretation for(C-K)
Answers
Answer:
(i) In a bond amortization schedule, the book value represents the remaining amount of the bond principal that hasn't been paid off at a given point in time. When a bond is first issued, its book value equals its face value. As payments are made over the life of the bond, a portion of these payments reduces the book value. By the end of the bond's life, its book value will be zero, as the entire principal will have been paid off.
(ii) The formula for the book value B at time k, where k is the number of periods elapsed, is B = C + Cg - jan-kj.
Here:
- C is the redemption amount,
- g is the modified coupon rate per period,
- j is the yield rate per period, and
- a_n-kj is the present value of an annuity immediate with n - k periods at the yield rate j.
This formula states that the book value at any time k is the redemption amount plus the present value of the future coupon payments (Cg), minus the present value of the annuity that represents the repayments of the bond (jan-kj).
The amortized amount at time k is the change in the book value from time k-1 to time k, plus the coupon payment at time k. It represents the portion of the bond's principal (and interest) that has been repaid up to time k.
(iii) If K is defined as the present value of the redemption value C, according to the Makeham formula, (C-K) would represent the difference between the redemption value of the bond and its present value. This difference is the amount of interest that will accumulate over the life of the bond. In other words, (C-K) can be interpreted as the total interest that the bondholder will earn from holding the bond until redemption, assuming that all coupon payments are reinvested at the yield rate j.
Explanation:
Instructions
Click the links to open the resources below. These resources will help you complete the assignment. Once you have created your file(s) and are ready to upload your assignment, click the Add Files button below and select each file from your desktop or network folder. Upload each file separately.
Now that the lab is complete, it is time to write your lab report. The purpose of this guide is to help you write a clear and concise report that summarizes the lab you have just completed.
The lab report is composed of four sections:
Section I: Experimental Overview
• Provide background information.
• Include the hypothesis(es).
• Summarize the procedures.
Section II: Data and Observations
• Summarize the data you collected in the lab guide.
• Include information from data tables.
• Include any written observations that are relevant.
Section III: Analysis and Discussion
• Discuss any important calculations or formulas used.
• Identify key results, what the results indicate, and any trends in the data.
• Include graphs (if constructed) that display trends in the data.
• Provide possible reasons for any problems with the experiment, or unexpected data.
Section IV: Conclusions
• Identify if the hypothesis(es) was (were) supported or refuted.
• Provide logical reasoning based on data.
• Explain how the experiment could be improved.
To help you write your lab report, you will first answer the questions listed below by reflecting on the experiment you have just completed. Then you will use the answers to these questions to write the lab report that you will turn into your teacher.
You can upload your completed report with the upload tool in formats such as OpenOffice.org, Microsoft Word, or PDF. Alternatively, your teacher may ask you to turn in a paper copy of your report or use a web-based writing tool.
Questions
Section I: Experimental Overview
• What is the purpose of the lab, the importance of the topic, and the question you are trying to answer?
• What is your hypothesis (or hypotheses) for this experiment?
• What methods are you using to test this (or each) hypothesis?
Section II: Data and Observations
• Locate the data and observations collected in your lab guide. What are the key results? How would you best summarize the data to relate your findings?
• Do you have quantitative data (numerical results or calculations)? Do you have qualitative data (written observations and descriptions)? How can you organize this date for your report?
Section III: Analysis and Discussion
• What do the key results indicate?
• If you constructed graphs, what trends do they indicate in your data?
• Were there any problems with the experiment or the methods? Did you have any surprising results?
Section IV: Conclusions
• What do the results tell you about your hypothesis(es)?
• How do the data support your claim above?
• If you could repeat the experiment and make it better, what would you do differently and why?
Answers
Just putting a comment here, I needed to test something
What is the longest wavelength?
Violet
Blue
Red
Green
Answers
Answer:
Longest wavelength visible: red
Shortest wavelength visible: violet
Can someone help? Ill give brainliest!
Directions: count each side of the reaction then Circle yes or no if it follows the law of conservation of mass
Answers
Answer:
Explanation:
before the reaction you have K=2 and Cl=4
after the reaction K=2 and Cl=2 so it does not follow the law of conservation
When a small piece of copper metal is added to a silver nitrate solution, the following reaction occurs: 2Ag+NO3+Cu → Cu (NO3)2+2Ag
This equation represents both a single replacement reaction AND a(n) ______________________ reaction.
Question 4 options:
A. oxidation - reduction
B. neutralization
C. combustion
D. decomposition
Answers
Answer:
A. Oxidation-reduction
Explanation:
I assume you mean the reaction is:
Ag2NO3(aq) + Cu(s) -> 2Ag(s) + Cu(NO3)2(aq)
Either way:
Solids have the oxidation number of 0. So in the beginning of the reaction Cu(s) has the oxidation number 0, and at the end it has a oxidation number of +2. So it was oxidized.
Ag in the beginning of the reaction has the oxidation number of +1, and ends with the oxidation number of 0. It was reduced.
So its an oxidation reduction.
How many grams of NH4Br should be used to prepare 2.00 L of 0.350 M solution
Answers
Molarity equals moles times volume.A 0.115M KBr solution needs 350 mL, or 4.79 grams, of KBr.
How is molarity calculated ?The following expression can be used to determine a solution's molarity:
Molarity equals moles times volume.
A 0.115M KBr solution in the volume of 350mL was sent in response to this inquiry.
Moles can be counted using the formula below:
mole number = 0.350 0.115
Number of Mole Units: 0.0403 Mol
KBr's molar mass is 39 + 80 = 119 g/mol.
KBr's mass is 119g/mol + 0.0403 mol.
KBr mass equals 4.79g
Therefore, to create 350 mL of a 0.115M KBr solution, 4.79 grams of KBr are needed.
A 0.115M KBr solution needs 350 mL, or 4.79 grams, of KBr.
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Which is the most accurate statement of the phenomenon underlying 'hydrophobicity', the clustering of oily molecules in the presence of water?
Answers
The most accurate statement is: water molecules lose opportunities to form bonds with each other when 'interrupted' by oily/hydrophobic ones.
Hydrophobic molecules or hydrophobes have very low solubility in water.
They are nonpolar molecules and do not interact with water molecules.
Oily molecules clump up together in a water because like that, they have minimal interaction with water.
Hydrogen bonds between water molecules (H₂O) will be broken so that the hydrophobes can interact.
When bonds are broken, heat in the system is greater (an endothermic reaction).
Hydrophobic interactions between hydrophobic molecules are spontaneous.
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What volume of carbon dioxide will be produced if 2. 90 moles of iron (fe) is produced?
Answers
The volume of carbon dioxide that will be produced is 191.4 g.
Calculation:
The following is the balanced equation for the given reaction:
Fe₂O₃(s) + 3CO(g) → 2Fe(s) + 3CO₂(g),
It is obvious that when 1.0 mole of Fe2O3 reacts with 3.0 mole of CO, 2.0 mole of Fe and 3.0 mole of CO2 are produced.
Hence by using cross multiplication:
If 2.0 mol of Fe was produced with → 3.0 mol of CO₂, from stoichiometry.
Then how many moles of CO₂ are produced by 2.9 mol of Fe?
To find the answer we have a formula:
∴ The no. of moles of CO₂ produced = (3.0 mol)(2.9 mol)/(2.0 mol) = 4.35 mol.
∴ The mass of CO₂ produced = no. of moles x molar mass = (4.35 mol)(44.0 g/mol) = 191.4 g.
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The reaction of hydrogen bromide(g) with chlorine(g) to form hydrogen chloride(g) and bromine(g) proceeds as follows:
2HBr(g) + Cl2(g) -->2HCl(g) + Br2(g)
When 23.5 g HBr(g) reacts with sufficient Cl2(g), 11.8 kJ is evolved.
Calculate the value of △,H for the chemical equation given.
Answers
The enthalpy of reaction per mole of HBr for this
reaction = ArH =-40.62 kJ/mole.
Explanation:
2HBr(g) + C12(g) > 2HC|(g) + Br2 (g)
When 23.9 g HBr(g) reacts with sufficient C12(g),
12.0 kJ of heat is evolved, calculate the value of
Ar for the chemical reaction.
Note that ArH is the enthalpy per mole for the
reaction.
Molar mass of HBr (g) = 80.91 g/mol.
Hence, 1 mole of HBr = 80.91 g
23.9 g of HBr led to the reaction giving off 12.0
kJ of heat
80.91 g of HBr will lead to the evolution of (80.91
× 12/23.9) = 40.62 kJ heat is given off.
Hence, 40.62 kJ of heat is given off per 80.91 g
of HBr.
This directly translates to that 40.62 kJ of heat is
given off per 1 mole of HBr
Hence, the heat given off per mole of HBr for
this reaction is 40.62 kJ/mole.
But since the reaction liberates heat, it means
the reaction is exothermic and the enthalpy
change for the reaction (AHrxn) is negative.
-40.62
Calculate the mass of iron(III) oxide that could be produced when 37.62 g of iron(II) sulfide and 22.56 g of oxygen are allowed to react.
Answers
what is the other term used to describe tropical cyclone when it is formed in the northwestern part of the pacific ocean
Answers
Answer:
Typhoons
Explanation:
A tropical cyclone is a word that is used by meteorologists to explain a rotating, organized system of clouds & thunderstorms that take their origins over tropical or subtropical waters and also possess closed but low-level circulation.
Now, In the Northwest part of the Pacific ocean, these tropical cyclones which are west of the dateline are referred to as Typhoons while In the southwest Pacific and in the Indian Ocean they are called Cyclones. Lastly, those that form over the Atlantic Ocean or eastern Pacific Ocean are referred to as hurricanes
Which of the following statements about the thermodynamically favorability of the reaction at 298 K is correct? A) It is thermodynamically unfavorable. B) It is thermodynamically favorable and is driven by entropy only. C) It is thermodynamically favorable and is driven by enthalpy only. D) It is thermodynamically favorable and is driven by both enthalpy and entropy
Answers
The correct statement about the thermodynamic favorability of the reaction at 298 K is option (D) It is thermodynamically favorable and is driven by both enthalpy and entropy.
The favorability of a reaction at a given temperature is determined by the Gibbs free energy change (ΔG). If ΔG is negative, the reaction is thermodynamically favorable, indicating that it can proceed spontaneously.
In this case, since the statement mentions that the reaction is thermodynamically favorable, we can rule out option A.
Option B states that the reaction is driven by entropy only. While entropy can contribute to the favorability of a reaction, it is not the sole driving force.
Option C states that the reaction is driven by enthalpy only. Again, while enthalpy can contribute to the favorability of a reaction, it is not the only factor.
Option D correctly states that the reaction is thermodynamically favorable and is driven by both enthalpy and entropy. The combined effects of enthalpy and entropy determine the overall favorability of the reaction at 298 K.
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The car has a rechargeable battery to drive it’s motor. The rechargeable battery provided a potential difference of 330 volts and can store up to 64 mega Jules it takes 8 hours for the battery to receive a full charge assume that the charging process is 100% efficient calculate the total charge the flows while the battery is being charged
Answers
The total charge that flows while the battery is being charged is approximately 193,939.39 Coulombs.
To calculate the total charge that flows while the battery is being charged, we can use the relationship between electrical energy, potential difference, and charge.
The electrical energy (E) stored in the battery is given as 64 mega Jules (64 MJ). The potential difference (V) provided by the battery is 330 volts. We know that the energy (E) is equal to the product of the potential difference (V) and the charge (Q):
E = V * Q
Since the charging process is 100% efficient, all the electrical energy supplied is stored in the battery. Therefore, we can rearrange the equation to solve for the charge (Q):
Q = E / V
Substituting the given values, we have:
Q = 64 MJ / 330 V
To perform the calculation, we need to convert mega Jules (MJ) to joules (J) since the SI unit of energy is joules. One mega Joule is equal to 1 million joules:
Q = (64 * 10^6 J) / 330 V
Calculating the division:
Q ≈ 193,939.39 Coulombs
Therefore, the total charge that flows while the battery is being charged is approximately 193,939.39 Coulombs.
This value represents the quantity of electric charge transferred during the charging process, and it indicates the amount of electricity that enters the battery.
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Which compound would you expect to be more soluble in water: lithium fluoride (LiF) or boron nitride (BN)? Explain.
Answers
Answer:
Lithium fluoride i think but I am not really sure
But it should be Lithium fluoride
Explanation: that's because neighter boron nor nitrogen contains water
List these compounds in order of increasing moles of molecules 2. 0 g of CH4O; 2. 0 g of H2O; and 2. 0 g of CHO molecules
Answers
Using the specified mass and each compound's respective molecular weights, we can compare the number of moles of each compound:
CH4O: Methyl alcohol has a molecular weight of about 32 g/mol.The formula for calculating the number of moles of CH4O is (mass of CH4O) / (molecular weight of CH4O): 2.0 g / 32 g/mol = 0.0625 moles.
H2O: H2O (water) has a molecular weight of about 18 g/mol.H2O's mass divided by its molecular weight yields the number of moles: 2.0 g divided by 18 g/mol, or 0.111 moles.
CHO: CHO (formaldehyde) has a molecular weight of about 30 g/mol.The formula for calculating the number of moles of CHO is (mass of CHO) / (molecular weight of CHO): 2.0 g / 30 g/mol = 0.067 moles.Consequently, the chemicals are CH4O CHO H2O in ascending molecular weight order.
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if a student dissolved benzoic acid in dcm and then added aqueous sodium hydroxide, how many layers would form? would benzoic acid still be present? in which layer? use a flow chart or equations to accompany your explanation.
Answers
When benzoic acid is dissolved in dichloromethane (DCM) and then aqueous sodium hydroxide is added, the solution will form two layers, an organic layer (DCM) and an aqueous layer.
Benzoic acid is a weak acid and will partially dissociate in water to form the benzoate anion and a hydronium ion (H3O+). When sodium hydroxide is added to the solution, it will react with the hydronium ion to form water and sodium ion. This will shift the equilibrium towards the formation of more benzoate anion, which is a water-soluble salt. The benzoate anion will then partition into the aqueous layer.
On the other hand, DCM is a nonpolar solvent that is immiscible with water. Benzoic acid is a weak acid with a pKa of 4.2, which means that it is only partially dissociated in DCM. As a result, benzoic acid will be predominantly present in the organic layer as the undissociated acid.
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How are superheavy elements made?
Answers
Answer: Most methods for making new elements involve a cyclotron, which speeds up atoms to high velocities before they smash into other atoms—these atoms are usually of different elements. This causes the nuclei to combine, creating new heavier elements.
Explanation: How are superheavy elements made?
The system below was at equilibrium in a
9.0 L container. What change will occur
for the system when the container is
shrunk to 3.0 L?
51.8 kJ + H₂(g) + 1₂(g) = 2HI(g)
Answers
The change that wilL occur is that the the reaction shifts to the right (products) to produce fewer moles of gas.
option C is correct.
How do we determine?The balanced equation is:
\(51.8 kJ + H_2(g) + 12(g) = 2HI(g)\)
From the left, there are 1 mole of H2 gas and 1 mole of I2 gas, which gives a total of 2 moles of gas.
In the right, there are 2 moles of HI gas.
We can tell that there are more moles of gas on the left side than on the right side by comparing the amount of moles on each side.
According to Le Chatelier's principle, a decrease in volume will favor the side with fewer moles of gas.
In our scenario, the reaction will shift to the right to produce fewer moles of gas.
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Answer:
there is no change
Explanation:
acellus correct