Sulfur dioxide is an atmospheric pollutant.
Sulfur dioxide pollution is reduced by reacting calcium oxide with sulfur dioxide to
produce calcium sulfite.
CaO + SO2 → CaSO3
7.00 g of calcium oxide reacts with an excess of sulfur dioxide.
Relative atomic masses (Ar): O = 16 S = 32 Ca = 40 Calculate the mass of calcium sulfite produced
Answers
The mass of calcium sulfite produced : 15 g
Further explanationA reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.
Reaction
CaO + SO₂ → CaSO₃
mol CaO (MW=56 g/mol)
[tex]\tt \dfrac{7}{56}=0.125[/tex]
Because sulfur dioxide is an excess, so mol CaSO₃ based on mol CaO
From the equation, mol ratio of mol CaSO₃ : mol CaO=1 : 1, so mol CaSO₃ :
[tex]\tt \dfrac{1}{1}\times 0.125=0.125[/tex]
mass CaSO₃ (MW=120 g/mol) :
[tex]\tt 0.125\times 120=15~g[/tex]
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Answer: any answer choices
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ОR
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Can someone help? Ill give brainliest!
Directions: count each side of the reaction. Circle yes or no if it follows the law of conservation of mass
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Answer:
Yes, it becomes 2 of H20 which is water
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Answer:
rank from lower to higher electronegativity
16)Li
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P
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How many moles are there in a 122 gram sample of nickel (Ni)?
7.16 x 103 moles
6.22 mol
2.08 mol
0.481 mol
Answers
The atomic mass of nickel is 58.71 gm and the given mass of nickel is 122 gm. Therefore, 2.08 moles are present in a 122-gram sample of nickel.
Nickel:
The atomic number of nickel is 28.The symbol of nickel is Ni.Density of a nickel 8.908 g/cm3.It is a d block element.It belongs to group 10 and period 4.It is also called transition metal.It is a metal and is located between groups 2 and 3.Mass of nickel given: 122 grams.
Atomic mass of nickel: 58.71 g mol
Number of moles = Mass / molar mass
= 122/ 58.71
= 2.078
= 2.08 moles.
The atomic mass of nickel is 58.71 gm and the given mass of nickel is 122 gm. Therefore, 2.08 moles are present in a 122-gram sample of nickel.
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someone help me please i’ll give brainly
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Answer:
D) All of the above
Explanation:
When the temperature of an object increases, the average kinetic energy and speed of its particles increases. When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object also increases as its temperature increases.
Which statement applies only to electric force insted of electric and magnetic forces
Answers
Answer:
If the options are
A. It can push objects apart
B. It can pull objects together
C. It acts between charged particles
D. It acts between objects that do not touch
I'm pretty sure it would be C.
Sry if wrong but have nice day! <3
what is the name of this atom?
A.) Beryllium
B.) Boron
C.) Fluorine
D.) Helium
Answers
Answer:
Explanation:
A .
A dish is given to you, which contains a blackish yellow powder. When you move a magnet over it, black particles fly upwards and get stuck to the magnet. All that is left in the dish is a yellow powder, which you discover to be sulfur.
Was your original powder an element, compound, or mixture, and how do you know?
PLEASE ANSWER IF YOU HAVe an ANSWER OR NOt JUST FOR THE POINTS OR ELSE YOU WANT TO BE REPORTED!!!! please and thank you!
Answers
Answer:
It is a Mixture
Explanation:
It's a mixture because it was a substance made from mixing other substances together. And when the magnet went over the powder, the iron is lifted and not the sulfur. So the different parts of it can be separated by any physical means that allows the parts to seen separated
Answer:
its is a mixture
Explanation: because I did the question
Chemistry, please help
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Answer:
Name ; Nickel(ii)Hydroxide
Formula;NI3O6
Explanation:
what coefficient will go in the box
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Answer:
5
Explanation:
I don't remember very thing from this unit but I believe 5 makes it possible
The chemical equation below shows the amount of the reactants used and the amount of only one of the products formed. How much water (H2O) should be formed in this chemical reaction? CH4 mass 4 + 2O2 mass 16 CO2 11 + 2h2O mass ?
Answers
Answer:
CH4 + 2O2 → CO2 + 2H2O
Explanation:
This is all i could come up with im sorry.
The amount of water formed in the given chemical reaction is 9 grams.
What is Stoichiometry?Stoichiometry is the calculation for the determination of the relative amount of reactants and products in chemical reactions. Stoichiometry is based on the law of conservation of mass where the total mass of the reactants in reaction equals the total mass of the products.
If the quantity of one reactant is known and the quantity of the product can be determined empirically, then the quantity of the other reactants can be calculated.
Given chemical equation is:
CH₄ + 2O₂ [tex]\longrightarrow[/tex] CO₂ + 2H₂O
16g 32g 44g 32g (from their molecular masses)
The amount of methane, oxygen, and carbon dioxide is 4g, 16g, and 32 g respectively.
16g of methane react with oxygen = 32g
4g of methane will react with oxygen = 8g
It means here methane is the limiting reagent as the given amount of oxygen is more than reacted one. So CH₄ will decide the amount of water.
16g of methane produces water = 32g
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Therefore, 9 grams of water should be formed in this reaction.
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When was Quartz found and how is it extracted??
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Answer:
Quartz was discovered in 1880 and they use buldozers and backhoes (to remove dust/dirt around it) and rarely explosives.
Explanation:
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i will mark brainliest
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Answer:
Blank #1: noble gas
Blank #2: bonding
Blank #3: octet rule
Blank #4: share
Blank #5: filled
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Please give me brianliest!!
What is a non-example of a nucleus? Please give me a non-living thing.
Answers
Answer:
They are prokaryotes and both have tough cell walls. ◦ The cytoplasm contains ribosomes, but no organelles. ◦ There is no nucleus for organisms in this category.
Explanation:
Answer:
rock- non living
( Prokaryotes don't have a nucleus)
Explanation:
If a substance has a PH of 7 is it a acid, base or a neutral.
Answers
Answer:
Neutral
Explanation:
A pH below 7 is acidic and a pH above 7 is basic, and a pH of 7 is neutral.
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when is the energy source used to fuel photosynthesis
Answers
Answer:
Photosynthesis, process by which green plants and certain other organisms use the energy of light to convert carbon dioxide and water into the simple sugar glucose. In so doing, photosynthesis provides the basic energy source for virtually all organisms.
Explanation:
6. All changes in states of matter (freezing, evaporation, condensation, etc.) are
a. physical changes
b. chemical changes
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Pretty sure its Physical Changes
No chemical reaction is happening.
Answer:
Changes of states are physical changes
Explanation:
They are reversible changes that do not involve changes in matter's chemical makeup or chemical properties.
PLEASE MARK BRAINLIEST
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The sequence of bases in a DNA template strand is 5'AAAACTGTGCAT3'. What is the corresponding mRNA produced? Label the 3' and 5' end in your answer Enter the mRNA sequence with labels for the 3' and 5' ends.
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The corresponding mRNA to 5'AAAACTGTGCAT3' is
3'UUUUGACACGUA5'.
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In DNA, four nucleotide bases are present AT and GC. They are attached to each other.
In RNA, the same bases are present but instead of T, U uracil is present.
When reading the DNA, the RNA bases complimentary join with the bases of DNA.
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Which of the following is true about waves?
A.
They are always visible.
B.
They always move matter.
C.
They carry energy.
D.
They can only travel though outer space.
Answers
Answer:
c. they carry energy is the answer
Answer:
C. they carry energy
Explanation:
Energy can be carried from one place to another by waves, including water, light, and sound waves. Waves are oscillating disturbances that travel through but do not move matter.
Infrared radiation escaping from hot coals is an example of invisible waves carrying energy. This energy can be felt as heat.
what kind of bonds involve a transfer of electrons? what kind of bond involves sharing of electrons?
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Answer:
While covalent bonding involves sharing electrons between two atoms, ionic bonding involves the complete transfer of electrons from one atom to another, creating positive and negative ions. These ions are then held together by the attraction between their opposite charges.
Explanation:
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What I need help fast!
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How is the pH of an acidic substance raised?
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2) freeze it.
3) Stir it.
4) Concentrate it.
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Answer: 4) Concentrate it
Explanation:
How many atoms of nitrogen are in the chemical formula Ni(NO3)2?
Answers
Answer:
2
Explanation:
bc the 2 that's after a bracket refers to both oxygen and nitrogen, making oxygen 6 bc it already has a 3(3×2=6)
Answer:
2
Explanation:
How is energy causing motion or creating a change in this image? (2 points)
Energy from fuel allows the plant to grow and make its own food.
Energy from the sun allows the plant to grow and make its own food.
Energy from the wind allows the plant to grow and make its own food.
Energy from the water allows the plant to grow and make its own food.
Answers
Answer:
Energy from the sun allows the plant to grow and make its own food.
Explanation:
From this image, we clearly see the leaves exposed to sun which supplies solar energy to the plant.
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Energy from the sun allows the plant to grow and make its own food
Explanation:
How many liters of ammonia are formed with 49.8 g of nitrogen gas reacting with 10.7 g of hydrogen gas at S.T.P.?
Answers
N2+3H2---->2NH3
the number of moles of N2 is 49.8g/14gmol^-1=3.56mol
the number of moles of H2 is 10.7g/2gmol^-1=5.35mol
here, since the ratio of N2/H2 is 1/3, we can see that H2 is the limiting reagent. therefore, the reaction proceeds as follows:
N2 + 3H2 ---------------> 2NH3
5.36mol (2/3)(5.36mol)=3.57mol
therefore, the number of moles of ammonia formed is 3.57mol. at STP, P=1atm, T=273K.
Therefore, V(NH3)=(3.57)(22.38)=79.822 L
This is due tomorrow so please help! : name a product where viscosity is important its creation or use explain why it is important
Answers
write the cations and anions present in NaCl
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In table salt, sodium chloride, sodium is the cation (Na+) and chloride is the anion (Cl-).
Sounds with small amount of energy______distances than sounds with more energy
A.Shorter
B. Longer
C.same
D. Medium