Answer:
C
Explanation:
A is made of 2 hydrogen 1 oxygen
B is sodium chloride
C tin is a single element
There are three common functional groups in organic chemistry that are readily ionized by adjusting the pH of the aqueous solution during an extraction. Name and write the chemical structure of these three functional groups, and show each of them in both their neutral and ionized forms.
Answer:
Following are the solution to the given question:
Explanation:
Please find the ionic compound in the solution file:
Following are the three functional groups which affected by pH:
Carboxylic acidPhenol functional group Amine functional groupHow are tadpoles and larvae similer
Answer: Tadpole, also called polliwog, aquatic larval stage of frogs and toads. Compared with the larvae of salamanders, tadpoles have short, oval bodies, with broad tails, small mouths, and no external gills. The internal gills are concealed by a covering known as an operculum.
Explanation:
How many molecules are present in 4.5
moles of H2O?
Answer:
Mole of the H2O = 4.5
Number of molecules =4.5 multipled by avogadro's number.
what is Keq for the reaction N2+3H2 = 2NH3 if the equilibrium concentrations are NH3 = 2 M, and H2 = 1 M
Answer:
0.5
Explanation:
What is Keq for the reaction N2 + 3H2 = 2NH3 if the equilibrium concentrations are [NH3] = 2 M, [N2] = 1 M, and [H2] = 2 M?
Step 1: Given data
Equilibrium concentrations:
[N₂] = 1 M
[H₂] = 2 M
[NH₃] = 2 M
Step 2: Write the balanced equation
N₂(g) + 3 H₂(g) ⇄ 2 NH₃(g)
Step 3: Calculate the concentration equilibrium constant (Keq)
The concentration equilibrium constant is equal to the product of the concentrations of the products raised to their stoichiometric coefficients divided by the product of the concentrations of the reactants raised to their stoichiometric coefficients.
Keq = [NH₃]² / [N₂] × [H₂]³
Keq = 2² / 1 × 2³ = 0.5
What is the total number of moles of O2(g) that must react completely with 5.00 moles of C4H10(g)?
Answer:
32.5 moles of O2(g) are necessaries for a complete reaction
Explanation:
Based on the reaction of combustion of C4H10(g):
C4H10(g) + 13/2 O2(g) → 4CO2(g) + 5H2O(g)
1 mole of C4H10 needs 13/2 moles O2 for a complete reaction.
That means, the moles of O2 required for a reaction of 5.00 moles of C4H10 are:
5.00 moles C4H10 * (13/2mol O2 / 1mol C4H10) =
32.5 moles of O2(g) are necessaries for a complete reaction
1) For the following molecules: - Draw the Lewis structures/dots - Determine the polarity (polar or non-polar). - List all intermolecular forces. a) CF4 b) CH2Br2 c) H2CO3 d) N2 e) PCl3 f) XeF2 g) NH4
Answer:
ed
Explanation:
ed
How many grams are in 0.5 moles of CO2?
Answer:
0.5 mole CO2=0. 5×44=22 gm.
Every cell is surrounded by a thin membrane. What is the main function of this cell membrane?
A.
to protect the cell from invasion by bacteria and viruses
B.
to allow each cell to form connections with other cells
C.
to limit the size of the cell and keep the shape of the cell the same
D.
to separate the inside of the cell from the outside environment
Answer:
The main function of the cell membrane is to protect the cell from the outer environment.
Answer: The answer is D.) to separate the inside of the cell from the outside environment
Explanation:
How many moles are there in 2.30 grams of NH4SO2?
Answer:
There are 0.028 moles in 2.30 grams of NH₄SO₂.Explanation:
To Calculate:
How many moles are there in 2.30 grams of NH₄SO₂?We know that:
Mole = Given mass/Molar massWe have:
Given mass = 2.30 gMolar mass of NH₄SO₂ = 82Finding the number of mole:
⟶ Mole = 2.30/82
⟶ Mole = 0.028 (approx.)
Hence,
There are 0.028 moles in 2.30 grams of NH₄SO₂.What [H3O+] in a solution of a PH of 0.60 is
What would the products be for the reaction between Na3PO4 + MgSO4?
MgSO4 + Na3PO4 = Na2SO4 + Mg3(PO4)2
Answer: The products of Na3PO4 + MgSO4 are Na2SO4 + Mg3(PO4)2
Explanation:
What is one movement that liquid water CANNOT do while on or at the Earth's surface? (GIVE RIGHT ANSWER OR I DELETE 100 POINTS)
Answer:
One movement that i can't do is float in mid air
Explanation:
Pls give theeee answerrrrrrrr
omg posting takes away point WHAT.
Answer:
yep
Explanation:
that why I have someone else post questions for me. But its a good incentive to help others to help you to help me to you to help others.
What is the limiting reactant in the following equation? How much Fe2O3 will be produced if 2.1 g of Fe with 2.1 g of O2?
4 Fe + 3O2 —> 2Fe2O3
Answer:
Fe is limiting, and it will produce .0188 mols of Fe2O3
Explanation:
after you convert both Fe and O2 to mols by using their molar mass, you see there is less Fe than O2 so that is your limiting reactant. To find the amount of Fe2O3 you devide the limiting reactant by it's coefeciant (4) then multiply it by the products coefficant (2). Let me know if you have any questions
What type of molecule is acetylacetone?
Answer:
here is the answer
Explanation:
ketone is the answer
what is the most metallic item on the pterotic table
Answer:
francium or cesium
Question 1 (1 point)
It is not necessary to balance an equation to find the correct mole ratios.
True
False
Answer:
false
Explanation:
cozz you'll need it inorder to find the correct mole ratio
How are solutions and compounds similar?
Answer:
hope you liked it!!!!!!
A compound is a pure substance that is composed of elements chemically bonded in definite proportions. A compound can be broken down into simpler substances only by chemical reactions, such as electrolysis.
A solution is a homogeneous mixture, meaning that it is the same throughout. A solution is composed of one or more solutes dissolved in a solvent. The proportions of the solute(s) can vary, as the components of a solution are not chemically bonded. The components of a mixture can be separated by physical means, such as filtration and distillation
A 0.150-kg sample of a metal alloy is heated at 540 Celsius an then plunged into a 0.400-kg of water at 10.0 Celsius, which is contained in a 0.200-kg aluminum calorimeter cup. The final temperature of the system is 30.5 Celsius. What is the specific heat of the metal alloy in J/Kg.Celsius
Answer:
[tex]C_{alloy}=0.497\frac{J}{g\°C}[/tex]
Explanation:
Hello there!
In this case, according to this calorimetry problem on equilibrium temperature, it is possible for us to infer that the heat released by the metal allow is absorbed by the water for us to write:
[tex]Q_{allow}=-(Q_{water}+Q_{Al})[/tex]
Thus, by writing the aforementioned in terms of mass, specific heat and temperature, we have:
[tex]m_{alloy}C_{alloy}(T_{eq}-T_{alloy})=-(m_{water}C_{water}(T_{eq}-T_{water})+m_{Al}C_{Al}(T_{eq}-T_{Al})[/tex]
Then, we solve for specific heat of the metallic alloy to obtain:
[tex]C_{alloy}=\frac{-(m_{water}C_{water}(T_{eq}-T_{water})+m_{Al}C_{Al}(T_{eq}-T_{Al})}{m_{alloy}(T_{eq}-T_{alloy})}[/tex]
Thereby, we plug in the given data to obtain:
[tex]C_{alloy}=\frac{-(400g*4.184\frac{J}{g\°C} (30.5\°C-10.0\°C)+200g*0.900\frac{J}{g\°C}(30.5\°C-10.0\°C)}{150g(30.5\°C-540\°C)} \\\\C_{alloy}=0.497\frac{J}{g\°C}[/tex]
Regards!
Determine the chemical formula for the molecule shown.
-Which of the following terms could most likely apply to the molecule shown?
hydrocarbon
polymer
organic
inorganic
Explain your answer to the second part of the question above.
Answer: Formula is C4H8O. In every branch of line formula there are Carbon atom. Carbon makes 4 bonds so In branch left in which two CH3-groups are attached there are also an Hydrogen aton which is not shown.
Explanation: Molecule is organic, it is classified as aldehyde.
Hydrocarbons contains only Carbon and Hydrogen atoms, Organic molecules can contain also other atoms.
Reactions of aldehydes are reduction to alcoholes or oxidation to carboxylic acids. It can not for a polymer.
What does pressure measure
Answer:
Pressure measurement is the analysis of an applied force by a fluid (liquid or gas) on a surface. Pressure is typically measured in units of force per unit of surface area.
hope this helps! mark as brainlist! :D
Answer:
THIS IS YOUR ANSWER I HOPE IT IS HELPFUL PLZ MARKS ME BRANILYWhat is the best reason for carbon dioxide existing as a gas at standard temperature and pressure?
A)
Carbon dioxide molecules have the same spin within each of their orbitals.
As a result, the carbon dioxide molecules are less attracted to each other
when compared to the intramolecular bonds.
B)
Coulomb's law shows that the interaction between protons and electrons
within the atoms of each carbon dioxide molecule is significantly stronger
than the proton-electron interaction between each molecule.
C)
The entropy of carbon dioxide is much greater than the entropy of its
surroundings.
D)
Carbon dioxide has too much internal energy that the molecule-molecule
interaction cannot keep the molecules together.
Will give brainliest
In the following acid-base reaction
H2O is the
HCl(g) + H2O(l) →H30+(aq) + Cl-(aq)
В
acid
base
conjugate
acid
CONJUGATE ACID
the acid's conjugate base because it can theoretically reform the acid by aaccepting a proton.
I hope this is correct >.<
QUESTION 29 The PH of a solution whose Hydroxide ion concentration is 0.45M is:
A. 0.071
B. 0.347
C. 13.65
D. 12.48
E. 12.7
Answer:
C. 13.65.
Explanation:
With the given hydroxide ion concentration [OH⁻] we can calculate the pOH of the solution, using the following formula:
pOH = -log[OH⁻]pOH = 0.35Then, with the pOH we can proceed to calculate the pH of the solution, with the formula:
pH + pOH = 14pH = 14 - pOHpH = 13.65The correct answer is option C. 13.65.
What is the hypothetical van't Hoff factor of magnesium nitrate, Mg(NO3)2?
Answer:
The hypothetical van't Hoff factor of magnesium nitrate,[tex]Mg(NO_3)_2[/tex] is 3 .
Explanation:
Lets calculate -
[tex]Mg(NO_3)_2\rightarrow Mg^2^+ +2NO_3^-[/tex]
We know that ,
[tex]i=\alpha n+(1-\alpha )[/tex]
Dissociation should be 100% for the hypothetical vant hoff factor , that is
[tex]\alpha =1[/tex] and [tex]n=3[/tex] for [tex]Mg(NO_3)_2[/tex]
Therefore , putting the given values ,
[tex]i=1\times3+(1-1 )[/tex]
[tex]i=3+0[/tex]
[tex]i=3[/tex]
Hence , the answer is 3.
The hypothetical van't Hoff factor of magnesium nitrate is 3.
Van't Hoff factor is a measure of the deviation of a solution from ideal behavior. It depends on the number of particles in the solution. The more the particles in solution, the greater the Van't Hoff factor and the greater the deviation from ideal behavior.
For Mg(NO3)2, the hypothetical van't Hoff factor is 3 since there are three particles in solution when magnesium nitrate is dissolved in water.
Learn more: https://brainly.com/question/6284546
What do scientists use the term “light-year” to describe?
Answer:
Astronomers measure distance in space or the distance light travels in one Earth year.
" A light-year is how astronomers measure distance in space. It's defined by how far a beam of light travels in one year – a distance of six trillion miles."
A car traveling at 30 m/s comes to a stop in 5 seconds. What is the acceleration of this car?
Answer:
6m/s brainliest?
Explanation:
Answer:
6 m/s
Explanation:
6. (08.02 MC)
What is the molarity of a solution prepared by dissolving 10.0 grams of NaOH in enough water to make a solution with a total volume of 2.40 liters? (5 points)
O 0.104 M NaOH
O 0.201 M NaOH
0 0.361 M NaOH
O 0.412 M NaOH
Answer:0.104
Explanation:
Answer:
0.104
Explanation:
convert grams to moles “10.0 x 1/40”
divide moles by the liters 0.25/2.4
answer: 0.104
A __ is a solid that forms in a liquid when a chemical reaction takes place.
Answer:
A precipitate is a solid that forms in a liquid when a chemical reaction takes place.