Answer:
the answer is Covalent compounds separate into neutral molecules when they dissolve in water.
Explanation: covalent doesn’t conduct electricity in water
The common salt transforms the distilled water into an electrical conductor. But sugar molecule is a covalent compound which dissolve in water. So the white sugar does not show any conductivity.
What are conductors?The electrical conductors are defined as the materials which allow electricity to flow through them easily. The property of conductors which allow them to conduct electricity is defined as the conductivity. The metals are good conductors of electricity.
The distilled water does not contain any contaminants and it is incapable of conducting even very minute amount of electricity. But during the addition of ordinary salt or sodium chloride to the distilled water, it becomes electrically conductible.
The presence of chlorine and sodium ions makes the distilled water to conduct electricity. Here sugar is a covalent compound which separate into neutral molecules when they dissolve in water. So covalent compounds does not conduct electricity.
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three molecules of oxygen react with four molecules of hydrogen to produce water molecules write a balanced chemical equation
Answer:
ExpC
H
4
+
2
O
2
→
C
O
2
+
2
H
2
O
This is the balanced reaction equation for the combustion of methane.
Explanation:
The Law of Conservation of Mass basically states that matter can neither be created nor destroyed. As such, we must be able to show this in our chemical reaction equations.
If you look at the equation above, you'll see an arrow that separates the reaction equation into two parts. This represents the direction of the reaction.
To the left of the arrow, we have our reactants.
To the right of the arrow, we have our products.
The quantity of each individual element in the left must equal the quantity of each individual element in the right.
So if you look below, you'll see the unbalanced equation, and I'll try to explain how to balance the reaction.
C
H
4
+
O
2
→
C
O
2
+
H
2
O
Our reactants in this equation are
C
H
4
and
O
2
.
Our next step is to break these down into individual atoms.
We have:
1 C atom, 4 H atoms & 2 O atoms.
If you're confused by this, look to see the little number to the bottom right of each element, the subscript, and it tells you how many of each atom are in the molecule. Make sense?
Now we look to the other side of the equation.
Here we see our products are
C
O
2
+
H
2
O
Again, we break these down into individual atoms again.
We have:
1 C atom, 2 H atom, 3 O atom
Which of the following is an educated guess?
O Inference
O Observation
O Hypothesis
O Quantitative
Find the mass in 34.4 liters of O2 gas at STP?
Answer:
mass of 1 mole of 34.4liters, O2, STP = 95.039999g
Explanation:
Write the problem as a mathematical expression.
Find the mass in 34.4liters of O2 gas at STP
To find the mass of 1 mole of 34.4liters, O2, STP look up the atomic mass of each element and multiply it by the number of atoms contained in each element in the molecule.
mass of 1 mole of 34.4liters, O2, STP = 2(mass of O) + (mass of S) + (mass of T) + (mass of P)
Fill in the atomic masses from the periodic table.
mass of 1 mole of 34.4liters, O2, STP = 2(16) + (32.06999969) + (0) + (30.96999931)
Simplify the result.
mass of 1 mole of 34.4liters, O2, STP = 95.039999g
hope this helps, good luck :)
also ive got no clue why the spacing looks all funny, sry about that
(Al = 27.0 g, O = 16.0 g, H = 1.0 g)
2 Al(OH)3 Al2O3 + 3 H2O
how many grams are produced from .85 moles of AI(OH)3
Answer:
Explanation:
21
Which part of the landscape shown in this image is the steepest?
Answer: A I believe
Explanation:
Everything in the universe that we can detect is either matter or ___________.
Answer:
Everything in the universe that we can detect is either matter or energy.
Everything in the universe that we can detect is either matter or energy.
What is energy?Energy exists in the capacity of a physical system to do work. The common symbol for energy exists in the uppercase letter E. The standard unit stands for the joule, symbolized by J. One joule (1 J) exists as the energy resulting from the equivalent of one newton (1 N) of force operating over one meter (1 m) of displacement.
A matter is referred as a substance having a certain mass and can take up a certain volume in the space. For example pen, pencil, toothbrush, water, milk are matters as well as car, bus, bicycle is also a matter. So matter is considered as a living thing and a non-living thing.
Energy, is the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms.
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A reactive metal that burns with oxygen and makes a white bright light is?
sodium
iron
magnesium
copper
Answer:
it is magnesium hope it helps
This compound is treated with two different oxidizing reagents: either H2CrO4 and H2SO4, or with PCC. Draw the major organic product for each of the oxidation reactions. Do not draw inorganic by-products.
Answer:
See explanation and image attached
Explanation:
We were told that one of two different oxidizing agents were used H2CrO4 and H2SO4 or PCC/CH2Cl2.
Now, we must know that when we use H2CrO4 and H2SO4, primary alcohols are converted to aldehydes and then to carboxylic acids while secondary alcohols are converted to ketones.
When we use PCC/CH2Cl2 primary alcohols are converted to aldehydes and does not move further to convert to carboxylic acids while secondary alcohols are converted to ketones.
Recall that tertiary alcohols are not oxidized at all.
I need help please on chemistry
Can someone help me please on this question like quick?
Select the correct answer
Which hand is negatively charged?
Option B is the correct answer .
What is Charge ?
Charge is a basic property of matter that is associated with the presence or absence of electrons. Objects can have positive or negative charge, or they can be neutral, which means they have an equal number of positive and negative charges. In physics, charge is one of the fundamental concepts used to explain the behavior of matter and energy in the universe. The interaction between charges is described by Coulomb's law, which states that the force between two charges is proportional to the product of their charges and inversely proportional to the square of the distance between them.
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Intermolecular forces exist between what?
Answer:
Intramolecular forces are the forces that hold atoms together within a molecule. Intermolecular forces are forces that exist between molecules.
Explanation:
What is the value for the rate of constant, k(with units)?
Answer:
b
Explanation:
Why is classification important?
Someone please answer my question for 100 points
I'm giving 100 points for that question
https://brainly.com/question/21777272
If you don't want to get reported and want brainiest, answer the question and don't just spam some random things. I really need help with this that's why I'm giving so many points
ok i will so tell me the question
it about chemical change
Answer:
Steps 3 and 4 :)
Perform each conversion
5.88 dL to liters
Answer:
5.88 dL = 0.588 litre
Explanation:
We need to find a conversion from 5.88 dL to liters.
We know that the conversion is as follows :
1 deciliter = 0.1 litre
To find 5.88 dL to liters, we use the unitary method. So,
5.88 dL= (0.1×5.88) litre
5.88 dL = 0.588 litre
So, there are 0.588 liters in 5.88 dL.
The temperature in mark’s town is 30 degrees Fahrenheit. The temperature in Vikki’s town is 82 degrees Fahrenheit. In both towns, the relative humidity is 90 percent. Is the amount of water vapor in the air the same in both towns?
Answer:
sorry don't know the answer but i really need the points sorry
Explanation:
which metals take part in chemical reactions when exposed to the air?
Answer:
sodium metal take part when exposed to air
Why is nitro group called an ambident group?
Answer:
An ambident ("both teeth") group is a group that can attach to another by either of two atoms. A nitro group can bond through either N or O. In organic chemistry, this property gives rise to functional group isomers.
Explanation:
Explanation:
An ambident ("both teeth") group is a group that can attach to another by either of two atoms. A nitro group can bond through either N or O. In organic chemistry, this property gives rise to functional group isomers.
Hope this is fine for you☺️☺️☺️2-Methyl-2-pentanol can be made starting from two different ketone electrophiles using two different Grignard reagents: one from a lower molecular mass Grignard reagent and one from a higher molecular mass Grignard reagent. Provide the retrosynthetic analysis for both routes using bromine as the halogen.
Answer:
Explanation:
In this case, we can do this by thinking a little.
Both ways use a grignard reagent, the difference between both ways is that one use an electrophile ketone with a low molecular mass, and the other has a high molecular mass.
The grignard reagent is commonly used to reduce carbonyle groups to alcohols. In the first step, a complex with the reagent is formed in the carbonile, and in the second step, the oxygen atom is hidrated in acid or basic medium and form the respective alcohol.
For the first way, we will use a high molecular mass ketone. In this case the 2-pentanone reacting with CH₃MgBr as a grignard reagent.
For the second way, we will use a low molecular mass ketone, in this case Acetone, reacting with CH₃CH₂CH₂MgBr. Both of them, will give the same product of 2 methyl-2-pentanol. See picture below for that
Hope this helps
What is the Molar Mass of Iron(Fe)? and also state how many particles there are in one mole of iron.
If AB = 5 inches and AD = 8, find BD. Round to the nearest tenth if necessary.
WILL GIVE BRAINLIEST
Answer:
6.5
Explanation:
half of 5 is 2.5, half of 8 is 4. 2.5+4=6.5
:)
The scientific method
A.is a recipe for doing science
B.will always give the right answer
C.is a systematic approach to the study of phenomena
D.involves preconceived ideas
Answer:
A. Is a recipe for soing science
Explanation:
A scientific method is a procedure for conducting science experiments, its almost like a recipe for a science experiment.
6. The human arm, a bat's wing, a whale's flipper, and a horse's
foreleg are examples of
A. Analogous Structures
B. Homologous Structures
C. Vestigial Structures
D. Fossils
I
what is the major use of carbon monoxide
Answer:
Carbon monoxide is a very important industrial compound. In the form of producer gas or water gas.
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HELP!!!!!....... Iron oxide reacts with carbon monoxide to produce iron and carbon dioxide, with the balanced chemical equation Fe2O3 + 3CO —> 2Fe + 3CO2. What does this tell you about the relative amounts of iron oxide and iron consumed and produced in this equation?
A. For every two moles of iron oxide consumed, one mole of iron is produced,
B. For every two grams of iron oxide consumed, one gram of iron is produced.
C. For every gram of iron oxide consumed, two grams of iron are produced
D. For every mole of iron oxide consumed, two moles of iron are produced.
Answer:D
Explanation: There is one mole of Iron Oxide on the reactants side(left) and two moles of iron on the products side (right).
Using the equation below, how many liters of water can be made from 7.6 L of oxygen gas at STP?
Answer:
V = 15.2 L
Explanation:
STP means that T = 273 K and P = 1 atm.
We use the PV=nRT equation to convert the given liters of oxygen to moles:
1 atm * 7.6 L = n * 0.082 atm·L·mol⁻¹·K⁻¹ * 273 Kn = 0.340 molNow we convert O₂ moles to H₂O moles, using the stoichiometric coefficients of the equation:
0.340 mol O₂ * [tex]\frac{2molH_2O}{1molO_2}[/tex] = 0.68 mol H₂OFinally we use the PV=nRT equation once again to convert 0.68 moles of H₂O to liters:
1 atm * V = 0.68 * 0.082 atm·L·mol⁻¹·K⁻¹ * 273 KV = 15.2 LPlease put them in order for 15 points
Answer:
I forgot that but I think boron is first d ff\
Explanation:
11. Calculate the number of atoms in 2.00g of platinum.
Answer:
Explanation:
All you need to know is the atomic mass of platinum, and Avogadro's number.
2.00g Pt divided by atomic mass gives you the moles of platinum, and multiplying by avogadro's number (6.022 x 10^23) gives you the number of atoms.
Atomic mass of platinum can be found on any periodic table.
Hope this helped.
12.04 × 10²³ number of platinum atoms are present in 2 grams of platinum.
How we calculate no. of atoms?To calculate the no. of atoms in any substance, we have to multiply the no. of moles of that substance by the Avogadro's no.
Value of Avogadro's no. = 6.022 × 10²³
We can calculate the mole by using the below formula:
n = W / M, where,
n = no. of moles
W = given mass = 2.00g
M = molar mass or atomic mass = 195.09 g/mol
n = 2 / 195.08 = 0.0102 mol
Number of atoms in 2.00g of platinum = 2 × 6.022 × 10²³ = 12.04 × 10²³.
Hence, number of atoms that are present in 2.00g of platinum is 12.04 × 10²³.
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