the answer is C given by the definition of isomer compounds
hello:) I’m a little confused because the textbook says it forms water but the notes from my school says that it forms salt and water :/
Answer:
Yes, it form Salt and Water
What causes two different types of molecules to react with each other?
Answer:
Molecular Interactions are attractive or repulsive forces between molecules and between non-bonded atoms. Bonds break and form during chemical reactions. In the chemical reaction called fire, bonds of cellulose break while bonds of carbon dioxide and water form.
Which element has a larger atomic radius than aluminum (AI)?
The Periodic Table
O A. Boron (B)
B. Silicon (Si)
O C. Nitrogen (N)
O D. Sodium (Na)
Answer:
The correct answer is D because i did this before and got it right.
Explanation:
Solid zinc is added to aqueous cobalt chloride. Using the metal activity series, which chemical equation reflects this reaction and its outcome?
A. 2Zn (s) + 3CoCI2 (aq) —> 2ZnCl2 (aq) + 3Co (s)
B. 2ZnCl2 (aq) + 3Co (s) —> 3CoCI2 (aq) + 2Zn (s)
C. Zn (s) + CoCI2 (aq) —> ZnCl2 (aq) + Co (s)
D. Zn (s) + CoCI2 (aq) —> NR
Answer:
Option C. Zn(s) + CoCI2(aq) —> ZnCl2 (aq) + Co(s)
Explanation:
The activity series of metals gives a clearer understanding of how metals displaces other metals in solution. Metals higher in the activity series will always displace those lower in the activity series.
Zinc, Zn is higher in the activity series than cobalt, Co. Therefore, zinc, Zn will displace cobalt, Co in any solution.
Considering the options given above, only option C. reflect the reaction and it is also balanced.
Zn(s) + CoCI2(aq) —> ZnCl2(aq) + Co(s)
Which is evidence that the reaction below is a redox reaction? 2Na + Cl2 → 2NaCl
Answer:
The correct answer is Two different elements take part in the reaction.
Explanation:
A redox reaction is generally defined as chemical reaction in which oxidation and reduction takes place simultaneously.It is a reaction between two species among which gain and loss of electrons takes place.
We learned about three career opportunities in the field of pulp and paper in class. Pick one career and find out the education, training, and experience required for this profession. Write about what you found and explain why this profession might interest you
Answer:
Pulp and Paper technology is a specialist field of chemical engineering which involves the study of the processes required for the conversion of raw materials such as wood, into pulp and paper products.
Paper and pulp manufacturing is a growing and dynamic industry so it requires a wide variety of personnel - from unskilled and semi-skilled workers to tradesmen, technicians and engineers - to control all the processes and develop new ones.
I choose to be a chemist in the field of paper and pulp. Requirements and compulsory Subjects: Physical Sciences, Mathematics, Engiineering and Technology.
Chemists are responsible for quality control and they study the influence of various chemicals on pulp and paper. Chemical and mechanical engineers develop new production methods.
I'll like to be a chemist in the field of paper and pulp because they perform the major role in the chemical properties of the paper and pulp.
Explanation:
Hope it helps.
Answer:
PLATO ANSWER
Explanation:
One mole of any gas at room
temperature and pressure will
occupy liter(s).
A. 10
B. 1
C. 22.4
D. 24
Reset Selection
One mole of any gas at room temperature and pressure will occupy 22.4 liter(s) (option C).
What is an ideal gas?Ideal gas is an hypothetical gas, whose molecules exhibit no interaction, and undergo elastic collision with each other and with the walls of the container.
One mole of an ideal gas contains a volume of 22.414 L at standard temperature and pressure (STP).
According to Avogadro's law, the volume occupied by one mole of a gas must be the same for all gases if the temperature and pressure are the same.
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What is the shape of a molecule of CH4?
O A. Trigonal-bipyramidal
O B. Bent
O C. Trigonal-pyramidal
O D. Tetrahedral
Answer:
D. Tetrahedral
Explanation:
the reason is because four electron pairs are distributed.
The common isotopes of carbon are 12C and 13C. The average mass of carbon is 12.01115 amu. What is the abundance of the 13C isotope? A. 1.115% B. 98.885% C. 0.480% D. 99.52% Provide an explanation if possible. Thanks so much!
Answer:
The abundance of the 13C isotope is 1.115%
Explanation:
The given information are;
Common isotope of carbon are 12C and 13C
The formula for calculating the relative atomic mass is the observed mass multiplied by the percentage abundance at that mass given as follows;
M₁ X₁ + M₂X₂ = Relative atomic mass
Where:
X₁ + X₂ = 1 as these are percentage represented as fractions
Let M₁ = 12 for 12C and M₂ = 13 for 13C
X₁ = Relative abundance fraction of 12C
X₂ = Relative abundance fraction of 13C
We have;
12X₁ + 13X₂ = 12.01115.......................(1)
X₁ + X₂ = 1............................................(2)
Which gives;
X₁ = 1 - X₂
Substituting the value for X₁ in equation (1) gives;
12(1 - X₂) + 13X₂ = 12.01115
13X₂ - 12X₂ + 12 = 12.01115
X₂ = 12.01115 - 12 = 0.01115
Therefore, the relative abundance fraction of 13C 0.01115 which in percentage is 100 × 0.01115 = 1.115%.
Explain the difference between the way a molecule (which does not ionize) dissolves and an ionic compound dissolves, using sugar water and salt water as an example
Answer:
The molecules (which do not ionize) dissolves in water depends on the polarity of molecules while the ionic compounds that dissolve in water depend on the electric charge of the compound.
For example sugar dissolves in water because of the polar nature of sugar which releases energy and form intermolecular bonds with the polar water molecules.
While salt dissolves in water as salt has a net electric charge that attracted by the oppositely charged ions present in the water. The attractive force between salt and water is stronger than sodium and chloride and allow salt to dissolve in the water.
Bee stings release methanoic acid which attacks the nerves in the skin. They can be
neutralized by applying a cream that contains
a) ammonia
b) vitamin C
c) sulphur dioxide
d) acetic acid (vinegar)
Answer:and so an acid should be applied to neutralize them and remove the pain.
Explanation:Bee and Wasp stings can be both painful and itchy, and are very common ... Many common household substances can be used for this, and vinegar and ... If you are near other Bees and Wasps,
Ammonia can be used to neutralise. Hence, option A is correct.
What is methanoic acid?It is the simplest carboxylic acid which consists of a single carboxylic acid group (COOH) which is attached to a hydrogen atom.
Ammonia is a great way to help neutralise the venom of a bee sting. All you need to do is create a thick paste out of baking soda and water and apply it to the sting.
Hence, option A is correct.
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A sample of Ne gas has a pressure of 654 mmHg with an unknown volume. The gas has a pressure of 345 mmHg when the volume is 495mL with no change in temperature or amount of gas. What is the initial volume in milliliters of the gas?
Answer:
The initial volume of Ne gas is 261mL
Explanation:
This question can be answered using Ideal Gas Equation;
However, the following are the given parameters
Initial Pressure = 654mmHg
Finial Pressure = 345mmHg
Final Volume = 495mL
Required
Initial Volume?
The question says that Temperature is constant;
This implies that, we'll make use of Boyle's law ideal gas equation which states;
[tex]P_1V_1 = P_2V_2[/tex]
Where [tex]P_1[/tex] represent the initial pressure
[tex]P_2[/tex] represent the final pressure
[tex]T_1[/tex] represent the initial temperature
[tex]T_2[/tex] represent the final temperature
[tex]P_1 = 654mmHg\\P_2 = 345mmHg\\V_2 = 495mL[/tex]
Substitute these values in the formula above;
[tex]654 * V_1 = 345 * 495[/tex]
[tex]654V_1 = 170775[/tex]
Divide both sides by 654
[tex]\frac{654V_1}{654} = \frac{170775}{654}[/tex]
[tex]V_1 = \frac{170775}{654}[/tex]
[tex]V_1 = 261.123853211[/tex]
[tex]V_1 = 261mL[/tex] (Approximated)
The initial volume of Ne gas is 261mL
The structural formula for 3-methyl-4-ethylbenzene-3-ene?
3-methyl-4-ethylhex-3-ene would be C9H18
Hope this helps!
Which statement best describes an effect of tension acting on Earthis crudo
A. Layers of rock get pushed upward.
B. Layers of rock get folded.
c. One slab of rock gets pulled apart.
D. Two slabs of rock slide past one another.
Answer:
layers of rock get folded
Answer:
C.One slab of rock gets pulled apart
Explanation:
Which of the following is a polar molecule?
O A. A carbon monoxide molecule (CO)
OB. A linear carbon dioxide molecule (CO2)
OC. A calcium oxide molecule (Cao)
O D. An oxygen molecule (0)
Answer:
D. An oxygen molecule (0)
Explanation:
Hope it helps.
How many grams of NO are produced from 15.8 g of H2O
Answer:
26.33 g of NO.
Explanation:
We'll begin by writing the balanced equation to produce NO from H2O. This is given below:
5N2 + 6H2O —> 4NH3 + 6NO
Next, we shall determine the mass of H2O that reacted and the mass of NO produced from the balanced equation. This is illustrated below:
Molar mass of H2O = (2x1) + 16 = 18 g/mol
Mass of H2O from the balanced equation = 6 x 18 = 108 g
Molar mass of NO = 14 + 16 = 30 g/mol
Mass of NO from the balanced equation = 6 x 30 = 180 g
From the balanced equation above,
108 g of H2O reacted to produce 180 g of NO.
Finally, we shall determine the mass of NO produced by the reaction of 15.8 g of H2O.
This is illustrated below:
From the balanced equation above,
108 g of H2O reacted to produce 180 g of NO.
Therefore, 15.8 g of H2O will react to produce = (15.8 x 180)/108 = 26.33 g of NO.
Therefore, 26.33 g of NO were obtained from the reaction.
Suggest why the colour of the copper sulfate solution fades during electrolysis.
Please help! Thank you:)
Answer:
The traces of hydrogen ions are not discharged, so you not see any gas bubbles collecting on the negative cathode electrode. The blue colour fades as more and more copper is deposited, depleting the concentration of the blue copper ion Cu2+ ions in solution.
Explanation:
what’s the mass of 2.80 mol of ca
Answer:
112.22 g
Explanation:
mass = no. of moles x atomic mass
From the periodic table, we can see the atomic mass of Ca is 40.078.
Therefore,
mass = 2.80 x 40.078
= 112.22g (corrected to 2 decimal places.)
What is the name given to the electrons in the highest occupied energy level of an atom? -anions -cations -valence electrons -orbital electrons
Answer:
Valence electrons
Explanation:
10) A hydrobromic acid (HBr) solution has a molar concentration of 0.0085 M. Calculate the
[H3O+], [OH-] and pH of the solution.
Answer:
Explanation:
To find the [H3O+] of the solution, we can use the fact that HBr is a strong acid and completely dissociates in water. Therefore, the concentration of H3O+ is equal to the molar concentration of HBr:
[H3O+] = 0.0085 M
To find the [OH-], we can use the equation:
Kw = [H3O+][OH-]
Where Kw is the ion product constant for water, which has a value of 1.0 x 10^-14 at 25°C.
Rearranging the equation to solve for [OH-], we get:
[OH-] = Kw / [H3O+]
[OH-] = (1.0 x 10^-14) / (0.0085)
[OH-] = 1.176 x 10^-12 M
To find the pH of the solution, we can use the equation:
pH = -log[H3O+]
pH = -log(0.0085)
pH = 2.07
Therefore, the [H3O+] of the solution is 0.0085 M, the [OH-] is 1.176 x 10^-12 M, and the pH is 2.07.
Ammonia and oxygen react to produce nitric oxide and water. Which of the following chemical equations describes this reaction and is balanced?
A. 2NH3 (g) + 3O2 (g) —> 2NO (g) 4H20 (g)
B. 4NH3 (g) +5O (g) —> 4NO (g) + 6H2O (g)
C. 4NO (g) + 6H2O (g) —> 4NH3 (g) +52O (g)
D. 2NO(g) + 4H2O (g) —> 2NH3 +3O2 (g)
Answer:
Option B. 4NH3(g) + 5O2(g) —> 4NO(g) + 6H2O(g)
Explanation:
The reaction between ammonia, NH3 and oxygen, O2, will produce nitric oxide and water as shown below:
NH3(g) + O2(g) —> NO(g) + H2O(g)
Now, let us balance the equation.
This is illustrated below:
NH3(g) + O2(g) —> NO(g) + H2O(g)
There are 3 atoms of H on the left side and 2 atoms on the right side. It can be balance by putting 4 in front of NH3 and 6 in front of H2O as shown below:
4NH3(g) + O2(g) —> NO(g) + 6H2O(g)
There are 4 atoms of N on the left side and 1 atom on the right side. It can be balance by putting 4 in front of NO as shown below:
4NH3(g) + O2(g) —> 4NO(g) + 6H2O(g)
Now, the are 2 atoms of O on the left side and a total of 10 atoms on the right side. It can be balance by putting 5 in front of O2 as shown below:
4NH3(g) + 5O2(g) —> 4NO(g) + 6H2O(g)
Now, we can see that the equation is balanced.
Therefore, option B gives the balanced chemical equation for the reaction.
Answer:
Answer: 4NH3(g) + 5O2(g) —> 4NO(g) + 6H2O(g)
Explanation: The reaction between ammonia, NH3 and oxygen, O2, will produce nitric oxide and water as shown below: NH3(g) + O2(g) —> NO(g) + H2O(g) Now, let us balance the equation. This is illustrated below: NH3(g) + O2(g) —> NO(g) + H2O(g) There are 3 atoms of H on the left side and 2 atoms on the right side. It can be balance by putting 4 in front of NH3 and 6 in front of H2O as shown below: 4NH3(g) + O2(g) —> NO(g) + 6H2O(g) There are 4 atoms of N on the left side and 1 atom on the right side. It can be balance by putting 4 in front of NO as shown below: 4NH3(g) + O2(g) —> 4NO(g) + 6H2O(g) Now, the are 2 atoms of O on the left side and a total of 10 atoms on the right side. It can be balance by putting 5 in front of O2 as shown below: 4NH3(g) + 5O2(g) —> 4NO(g) + 6H2O(g) Now, we can see that the equation is balanced. Therefore, option B gives the balanced chemical equation for the reaction.
Like DNA, RNA contains four nitrogenous bases.
Three of them are the same as those found in
DNA. The one that is different is called
The five-carbon sugar in RNA is called
Answer:
Uracil, Ribose
Explanation:
The Nitrogenous base found in RNA that is not found in DNA is called Uracil.
While the five-carbon sugar in RNA is called Ribose.
Answer:
Uracil and then Ribose
Explanation:
Two atoms have the same relative atomic mass but different chemical properties.
Which row about the proton and neutron numbers of these atoms is correct?
Answer:
A
Explanation:
Protons are the ones which give rise to different elements, hence different elements have different chemical properties. Therefore, the two atoms must have different proton numbers.
The relative atomic mass of an atom is determined by the mass of the neutrons and the protons. The mass of the electrons are not included due to their negligible mass (1/1840).
Hence, due to the different proton masses, the masses of the neutrons will also differ to ensure that both atoms have the same relative atomic mass.
What would form a solution
Given the equation: N2 +202 --> 2NO2, what mass of oxygen is required to react completely with 59.443 g of
nitrogen?
Select one:
O a. 135.8
b. 93.3
O c. 118.8
O d. 263
PLEASE HELP
Answer:
A 135.8
Explanation:
Plsss help if you know!!
The "calorie" used to measure the caloric content of foods is actually a kilocaloric (kcal) or 4184kJ. If the heat of cumbustion for sugar Is 5639kJ/Mol, why are people who are on limited calorie diets advised to limit thier fat intake?
Answer:
fat has twice the calories of carbohydrates per gram
Explanation:
The first point that we must make is that fat has twice the calories of carbohydrates per gram. This is why it is necessary for people who are dieting to limit their intake of fat. It is known that the calories contained in food are obtained from carbohydrates, proteins, and fats. Experts are of the opinion that one gram of carbohydrate contains 4 calories, one gram of protein contains 4 calories while one gram of fat contains about 9 calories. This is a little above two times the amount of calories in carbohydrates and proteins.
Since fat has twice as much calories as carbohydrates or sugar, taking them into the body will increase the 'calories' in the body thereby making the weight loss process difficult since the excess calories will now be stored in the body.
This is the reason why people who are on limited calorie diets are advised to limit their fat intake.
The reason why people who are on limited calorie diets are advised to limit their fat intake: because too much fat can raise the cholesterol level.
A calorie can be defined as a standard unit which is used for the measurement of the energy contained in a food.
Basically, the standard unit for the measurement of the caloric content in food is actually a kiloJoules (kJ) or kilocaloric (kcal).
A limited calorie diet is also referred to as a fat-restricted diet and it refers to an eating plan that completely limits the amount of fat that a person consumes on a daily basis.
Generally, people who are on limited calorie diets are advised to limit their fat intake because too much fat can raise the cholesterol level, which in turn increases their risk of having a heart disease.
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He (Helium) is _________ atomic molecule.
Answer:
Monatomic molecule
Explanation:
Each helium atom has 2 electrons, which is already the maximum no. of electrons that can fit in the first electron shell. When the outermost electron shell is full (2 for the first layer, 8 for others), the atom is stable.
Helium atom itself is already stable, so it doesn't need to combine with another helium atom to form a molecule, hence we call it monatomic.
molar mass of c16h19n305s
Answer:
365.212
Explanation:
According to the given situation, the calculation of molar mass is shown below:-
Data provided
[tex]c_{16}\ h_{19}\ n_3\ o_5\ S[/tex]
Molar mass = 16 × 12 + 19 × 1.008 + 3 × 14 + 5 × 16 + 32.06
= 192 + 19.152 + 42 + 80 + 32.06
Molar mass = 365.212
Therefore for determining the molar mass we simply solve the above equation.
So, the correct answer is 365.212
How many moles of Au atoms are present in one ounce of pure gold? [1 oz = 28.4 g]
Answer:
3.36x10^27 atoms
You would expect magnesium to be most similar in properties to
A. silicon.
B. calcium.
C. potassium.
D. sulfur.
Answer:
Calcium
Explanation:
"Calcium is a mineral that is necessary for life. In addition to building bones and keeping them healthy, calcium enables our blood to clot, our muscles to contract, and our heart to beat. About 99% of the calcium in our bodies is in our bones and teeth. "
Answer:
Calicum
Explanation:
DID THE TEST AND GOT IT RIGHT!!!