Answer:
Explanation:
No, it is preposterous and possible to expect or to disengage and isolate a basic and neutral compound by 1M NaOH in DCM. Since neutral compounds do not react with NaOH, and NaOH itself is a base so it can't react with another base to yield salt. For that reason, we just need a corrosive element i.e an acid.
So; In DCM, we can't utilize 1M NaOH rather than 1M HCI for isolation and detachment of neutral and basic compounds.
Answer this right and ill give u double points then what there is already
Answer:
I think it is D. because the lantana reproduces by way of pollination which is the only thing in common with the blue Daze.correct me if im wrong
it is common to get different volume reading for each container.What explaination can you offer for an apparent decrease and increase in volume
Error in the markings of one or more of the containers could be the result of different volume readings for each container.
What are measurement errors?
All experimental research is built on measurement. Without steadily improving levels of measuring precision, none of the major technological advancements would have been feasible. Based on some internationally recognized standards that, when compared to other standards, are totally correct, amounts are measured.
Measurements are taken by comparing an unknown amount with a known weight, just like your local vegetable vendors. Every measurement contains a certain amount of inaccuracy, also known as uncertainty. This error could occur throughout the procedure or as a result of an experimentation blunder. Therefore, no measurement technique can be 100% accurate.
The discrepancy between the measured and actual values might be used to define an error. For instance, if both operators are using the same measurement tool. It's not required for two operators to produce results that are similar. An ERROR is used to describe the measurement discrepancy.
You need to be familiar with the two phrases that characterize the mistake in order to comprehend the idea of measurement errors. True value and measurable value are what they are. It is impossible to determine the real value of experimentation. It may be described as the average value of all possible measured values, which is limitless. To be as exact as possible, the measured value is a single measurement of the item.
Therefore, errors in the markings of one or more of the containers could be the result of different volume readings for each container.
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Which of these materials are insulators? Select the THREE (3) that apply.
aluminum can
wool
rubber
iron nail
copper wire
plastic
Answer:
wool ,rubber and copper wire should be correct
In order for heat to flow there must be... *
A. identical tempatures
B. a difference in tempatures
C. a difference in altitude
D. an electrical current present
Answer:
B. a difference in temperatures.
Explanation:
Conduction involves the transfer of electric charge or thermal energy due to the movement of particles. When the conduction relates to electric charge, it is known as electrical conduction while when it relates to thermal energy, it is known as heat conduction.
In the process of heat conduction, thermal energy is usually transferred from fast moving particles to slow moving particles during the collision of these particles.
Also, thermal energy is typically transferred between objects that has different degrees of temperature and materials (particles) that are directly in contact with each other but differ in their ability to accept or give up electrons.
In order for heat to flow there must be a difference in temperatures.
This ultimately implies that, the driving force responsible for heat to flow is a difference in temperature between the points from which heat originates and where heat is received.
Additionally, the higher the temperature difference, the greater would be the heat flow; which is usually from a high temperature level to a low temperature level.
CuCl2(aq) + Na3PO4(aq) =>?
Net ionic equation
Which of the following statements would be an argument against multiculturalism?
(Click all that apply.)
A) Canadians are a mixture of people from various cultural, religious, racial, and ethnic origins. This mixture helps in relations with other countries.
B) Many cultural and ethnic groups have helped build Canada. We should encourage people to preserve their heritage; their traditions are part of Canadian history.
C) Canadians will learn tolerance through being in contact with other cultures. Multiculturalism can help to eliminate discrimination and prejudice.
D) The Canadian government should not spend citizens' tax dollars on multiculturalism. Our taxes are already too high.
Answer:
D
Explanation:
PLEASE HELP WORTH 100 POINTS !!!!!
Answer: Imidogen
Explanation: I just looked it up.
Answer:
Imidogen
Explanation:
What would a biologist see if she examined a small piece of a leaf from a plant and a small piece of a root from the same plant through a microscope?
Both the leaf and the root would be made up of cells.
O The leaf would be made up of cells, but the root would not be made up of cells.
o The root would be made up of cells, but the leaf would not be made up of cells. Ok
o Neither the root nor the leaf would be made up of cells because plants are not made of cells
up
Explanation:
What would a biologist see if she examined a small piece of a leaf from a plant and a small piece of a root from the same plant through a microscope? Both the leaf and the root would be made up of cells. The leaf would be made up of cells, but the root would not be made up of cells.
Answer:
both are made out of cells
Explanation:
both are parts of a plant, plants are liveing things, all liveing things are made of cells.
In a thin layer chromatography experiment, a plate of length 9.3 cm was used and a horizontal line was made at 1.45 cm above the bottom of the plate. After running the experiment (developing and drying), a spot was observed at 5.6 cm from the bottom of the plate, and the solvent front was 7.7 cm from the bottom of the plate. What is the Rf value
Answer: The [tex]R_f[/tex] value is 0.664
Explanation:
Distance travelled by solvent front = (7.7-1.45)cm = 6.25 cm
Distance travelled by unknown = (5.6-1.45) cm = 4.15 cm
The retention factor or the [tex]R_f[/tex] value is defined as the ratio of distance traveled by the unknown to the distance traveled by the solvent front.
[tex]R_f=\frac{\text {distance travelled by unknown}}{\text {distance travelled by solvent}}[/tex]
[tex]R_f=\frac{4.15}{6.25}=0.664[/tex]
Thus the [tex]R_f[/tex] value is 0.664
how many Grams of Nitrogen are in 2.086 x 10 9 G of nh4no3
Answer:
730×10 6 g
Explanation:
each one mole of NH4NO3 has 2 moles of nitrogen (2×14)
N NH4NO3
2×14 14+(4×1) +14+(3×16)
28 80
? 2.086 × 10 9
2.086× 10 9 ×28 ÷80 = 730 × 10 6 g of Nitrogen
An average bushel of apples has a mass of 10 kg and contains 5 dozen apples.
What would be the average mass of 6 apples?
Answer:
Average mass of 6 apple = 1 kg
Explanation:
Given:
Average mass of 5 dozen apple = 10 kg
Find:
Average mass of 6 apple
Computation:
Average mass of 6 apple = [Average mass of 1 apple] x [6 apple]
Average mass of 6 apple = [10/(12 x 5)] x [6]
Average mass of 6 apple = 1 kg
WHO EVER ANSWERS FIRST IS GETTING BRAINLIEST ( Correctly )
Most geologists rejected Alfred Wegener’s idea of continental drift because
they were afraid of the new idea.
Wegener was too interested in what Earth was like millions of years ago.
Wegener used several different types of evidence to support his hypothesis.
Wegener could not identify what force could move the continents.
Answer:
Wegener could not identify what force could move the continets.
Explanation:
The number of moles of molecules in a 12.0-gram sample of Cl2 is equal too?
Answer:
0.3529moles
Explanation:
no of moles =mass ÷molar mass
molar mass =17+17
=34
12÷34
=0.3529moles
According to the mole concept, the number of moles of molecules in a 12.0-gram sample of Cl₂ is equal to 0.169 moles.
What is a mole?
Mole is defined as the unit of amount of substance . It is the quantity measure of amount of substance of how many elementary particles are present in a given substance.
It is defined as exactly 6.022×10²³ elementary entities. The elementary entity can be a molecule, atom ion depending on the type of substance. Amount of elementary entities in a mole is called as Avogadro's number.
It is widely used in chemistry as a suitable way for expressing amounts of reactants and products.For the practical purposes, mass of one mole of compound in grams is approximately equal to mass of one molecule of compound measured in Daltons. Molar mass has units of gram per mole . In case of molecules, where molar mass in grams present in one mole of atoms is its atomic mass.Number of moles is mass/molar mass= 12/70.90=0.169 moles.
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2) A common "rule of thumb" -- for many reactions around room temperature is that the
rate will double for each ten degree increase in temperature. Does the reaction you hav
studied seem to obey this rule.
The question is incomplete. The complete question is :
A common "rule of thumb" for many reactions around room temperature is that the rate will double for each ten degree increase in temperature. Does the reaction you have studied seem to obey this rule? (Hint: Use your activation energy to calculate the ratio of rate constants at 300 and 310 Kelvin.)
Solutions :
If we consider the activation energy to be constant for the increase in 10 K temperature. (i.e. 300 K → 310 K), then the rate of the reaction will increase. This happens because of the change in the rate constant that leads to the change in overall rate of reaction.
Let's take :
[tex]$T_1=300 \ K$[/tex]
[tex]$T_2=310 \ K$[/tex]
The rate constant = [tex]$K_1 \text{ and } K_2$[/tex] respectively.
The activation energy and the Arhenius factor is same.
So by the arhenius equation,
[tex]$K_1 = Ae^{-\frac{E_a}{RT_1}}$[/tex] and [tex]$K_2 = Ae^{-\frac{E_a}{RT_2}}$[/tex]
[tex]$\Rightarrow \frac{K_1}{K_2}= \frac{e^{-\frac{E_a}{RT_1}}}{e^{-\frac{E_a}{RT_2}}} $[/tex]
[tex]$\Rightarrow \frac{K_1}{K_2}= e^{-\frac{E_a}{R}\left(\frac{1}{T_1}-\frac{1}{T_2}\right)}$[/tex]
[tex]$\Rightarrow \ln \frac{K_1}{K_2}= - \frac{E_a}{R} \left(\frac{1}{T_1} -\frac{1}{T_2} \right)$[/tex]
[tex]$\Rightarrow \ln \frac{K_2}{K_1}= \frac{E_a}{R} \left(\frac{1}{T_1} -\frac{1}{T_2} \right)$[/tex]
Given, [tex]$E_a = 0.269$[/tex] J/mol
R = 8.314 J/mol/K
[tex]$\Rightarrow \ln \frac{K_2}{K_1}= \frac{0.269}{8.314} \left(\frac{1}{300} -\frac{1}{310} \right)$[/tex]
[tex]$\Rightarrow \ln \frac{K_2}{K_1}= \frac{0.269}{8.314} \times \frac{10}{300 \times 310}$[/tex]
[tex]$\Rightarrow \ln \frac{K_2}{K_1}= 3.479 \times 10^{-6}$[/tex]
[tex]$\Rightarrow \frac{K_2}{K_1}= e^{3.479 \times 10^{-6}}$[/tex]
[tex]$\Rightarrow \frac{K_2}{K_1}= 1$[/tex]
∴ [tex]$K_2=K_1$[/tex]
So, no this reaction does not seem to follow the thumb rule as its activation energy is very low.
If an old car burns 0.05 mL oil every mile, How much oil will it burn if driven 100,000 miles? Show your answer in mL and L?.
0.05 * 100000
= 5000ml
= 5L
Scientists examine fossils from three different animals. They determine that all three animals share similar structures and
record their observations as follows
• Animal A and animal B have somewhat similar structures
• Animal A and animal C have very similar structures
• Animal B and animal C have very similar structures
The scientists use the similarities to determine the order in which the fossils should appear in the fossil record. Based on the
scientists' observations, which order is the most reasonable?
ABC
ACB
С, В, А
В, А С
Answer:
C,B,A
Explanation:
C has the most similar structure
B has the second most similar structure
A has the least similair structure
Based on the scientists' observations, the order which is the most reasonable is C,B,A.
What are observations?Observations are defined as a set of statements or facts which are recorded while conducting an experiment.Observations are made through sensing changes in the variables of the experiment.
It is specifically defined as an act of knowing or recording the changes in the variables of the experiment.Recording observations holds importance as recording observations avoid the experiment to be repeated over and over again.
It is important to note down observations so that the testing of hypothesis is made easier.There are four types of observations .Observations need to be descriptive and must be written in complete sentences and should include all the numerical data of the experiment.
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How many grams do 4.5 moles of oxygen atoms weigh
Answer:
71.99100
Explanation:
The mass of oxygen equal to one mole of oxygen is 15.998 grams and the mass of one mole of hydrogen is 1.008 g. 15.998*4.5 = 71.99100
What is the composition of a universal indicator?
Answer:
The main universal indicator is in the form of a solution and are thymol blue , methyl red , bromothymol blue and phenolphthalein this mixture is important because each component loses or gains protons depending upon the acidity of the solution being tested .
maybe this mighr help u
Which of the following cell organelles is NOT found in BOTH plant and animal cells?
O cells membrane
O cell wall
O ribosomes
O cytoplasm
If 4.52g of the precipitate is formed, how many grams of sodium chloride reacted?
The question is incomplete, the complete question is;
AgNO3(aq)+NaCl(aq)→AgCl(s)⏐↓+NaNO3(aq)
1- If 4.52g of the precipitate is formed, how many grams of sodium chloride reacted?
Answer:
1.8 g
Explanation:
Given the equation;
AgNO3(aq)+NaCl(aq)→AgCl(s)↓+NaNO3(aq)
We can see that the reaction is 1:1 Hence, 1 mole of sodium chloride yielded 1 mole of the precipitate(AgCl).
If this is so,
Number of moles of precipitate formed = 4.52g/143.32 g/mol
Number of moles of precipitate formed = 0.0315 moles
Hence, 0.0315 moles of precipitate was formed by 0.0315 moles of NaCl
Therefore;
Mass of NaCl reacted = 0.0315 moles * 58.5 g/mol = 1.8 g
Answer this express as a chemical equation
Answer:
Pb(No3)2+2Nacl_PbCl2+2NaNO3
How does a computer's ability to perform so many calculations in a very short time affect how people communicate (pls help)
Answer:
A computer's ability to perform so many calculations in a very short time affects how people communicate by stopping them from talking actually. We no longer talk verbally. We don't go out and socialize, we always talk from the phone or text. We have lost our inner touch with talking.
Explanation:
GIVING 28 POINTS AWAY PLEASE HELP ME WITH BOTH QUESTIONS ASAP!!
Answer: D
Explanation: for question 2 the answer is D and for 3 it is A. That is very easy and the muscular systen has nothing to do with breathing.
Answer:
2: d
3: b
i think, im not too sure
What are the coefficients that would correctly balance this equation?
____Zn + ____K2CrO4 → ____K + ____ZnCrO4
1, 2, 1, 2
2, 1, 2, 1
1, 1, 2, 1
1, 2, 3, 1
Answer:
Explanation:
1,2,1,2
Answer:
b
Explanation:
If 21.00 mL of a 0.68 M solution of C6H5NH2 required 6.60 mL of the strong acid to completely neutralize the solution, what was the final pH at the equivalence point
Answer:
pH = 2.46
Explanation:
Hello there!
In this case, since this neutralization reaction may be assumed to occur in a 1:1 mole ratio between the base and the strong acid, it is possible to write the following moles and volume-concentrations relationship for the equivalence point:
[tex]n_{acid}=n_{base}=n_{salt}[/tex]
Whereas the moles of the salt are computed as shown below:
[tex]n_{salt}=0.021L*0.68mol/L=0.01428mol[/tex]
So we can divide those moles by the total volume (0.021L+0.0066L=0.0276L) to obtain the concentration of the final salt:
[tex][salt]=0.01428mol/0.0276L=0.517M[/tex]
Now, we need to keep in mind that this is an acidic salt since the base is weak and the acid strong, so the determinant ionization is:
[tex]C_6H_5NH_3^++H_2O\rightleftharpoons C_6H_5NH_2+H_3O^+[/tex]
Whose equilibrium expression is:
[tex]Ka=\frac{[C_6H_5NH_2][H_3O^+]}{C_6H_5NH_3^+}[/tex]
Now, since the Kb of C6H5NH2 is 4.3 x 10^-10, its Ka is 2.326x10^-5 (Kw/Kb), we can also write:
[tex]2.326x10^{-5}=\frac{x^2}{0.517M}[/tex]
Whereas x is:
[tex]x=\sqrt{0.517*2.326x10^{-5}}\\\\x=3.47x10^-3[/tex]
Which also equals the concentration of hydrogen ions; therefore, the pH at the equivalence point is:
[tex]pH=-log(3.47x10^{-3})\\\\pH=2.46[/tex]
Regards!
which element listed below can conduct heat and electricity, but not as well as metal?
a. copper (Cu)
b. silicon (Si)
c. iron (Fe)
d. neon (Ne)
Help me with this question
Answer:
your cool
Explanation:
owa owa owa owa owa bob
What is the mass of 2 moles of nitrogen gas, N2?
Answer:
28g
Solution. Hence, 2 moles of nitrogen atoms weigh 28g.
can you help me please
if anybody could help with this question i would appreciate it
its not college level but i dont know how to change the grade level
Answer:
D. Liquid
Explanation:
It's mercury given the density and mercury's a metal that is liquid at room temperature