Answer:
A) FeCl₃
Explanation:
The only unclear part here is what the product is meant to be. But, I will put in the limiting reactant for both cases.
4 FeCl₃ + 3 O₂ ⇒ 2 Fe₂O₃ + 3 Cl₂
For Fe₂O₃:
Use the stoichiometry from the chemical equation to solve this problem.
You need 4 moles of FeCl₃ to make 2 moles of Fe₂O₃.
8 × (2/4) = 4 moles
You need 3 moles of O₂ to make 2 moles of Fe₂O₃.
8 × (2/3) = 5.3 moles
Since FeCl₃ made less product, it is the limiting reactant.
For Cl₂:
Do the same as above.
You need 4 moles of FeCl₃ to make 3 moles of Cl₂.
8 × (3/4) = 6 moles
You need 3 moles of O₂ to make 3 moles of Cl₂.
8 × (3/3) = 8 moles
Since FeCl₃ made less product, it is the limiting reactant.
Answer:
A) FeCl₃
Explanation:
Hope this helps
What is the name of C3H8?
Answer:
Propane
Explanation:
A 0.050L solution of Ba(OH)2 is neutralized by 0.072L of a 0.55 M HNO3 solution. What is the concentration of the Ba(OH)2 solution?
Answer:
0.396M
Explanation:
Step 1:
The balanced equation for the reaction. This is given below:
2HNO3 + Ba(OH)2 —> Ba(NO3)2 + 2H2O
From the balanced equation above,
The mole ratio of the acid (nA) = 2
The mole ratio of the base (nB) = 1
Step 2:
Data obtained from the question. This include the following:
Volume of base (Vb) = 0.05L
Concentration of base (Cb) =..?
Volume of acid (Va) = 0.072L
Concentration of acid = 0.55 M
Step 3:
Determination of the concentration of the base, Ba(OH)2.
The concentration of the base, Ba(OH)2 can be obtained as follow:
Cava /CbVb = nA/nB
0.55 x 0.072 / Cb x 0.05 = 2/1
Cross multiply to express in linear form
Cb x 0.05 x 2 = 0.55 x 0.072
Divide both side by 0.05 x 2
Cb = (0.55 x 0.072) / (0.05 x 2)
Cb = 0.396M
Therefore, the concentration of the base, Ba(OH)2 is 0.396M
what happens when light is not spread out
Answer:
Spreading out a wave over a larger area just causes the wave strength to weaken, but does not cause gaps to form. Therefore, if you look at photons as waves, spatial gaps never form in light as it travels through free space, no matter how dim it gets.Spreading out a wave over a larger area just causes the wave strength to weaken, but does not cause gaps to form. Therefore, if you look at photons as waves, spatial gaps never form in light as it travels through free space, no matter how dim it gets
Explanation:
What volume of oxygen gas at 20°C and 0.919 atm is
consumed in the production of 5.00 g of iron(III) oxide from
metallic iron?
4Fe(s) + 302(g) → 2Fe2O3 (9)
LO2
Answer:
Volume of oxygen gas is 78.47L
Explanation:
Data;
Temperature (T) = 20°C = (20 + 273.15)K = 293.15K
Pressure (P) = 0.919atm
Mass (m) = 5g
Volume (v) = ?
Equation of reaction;
4Fe + 3O₂ → 2Fe₂O₃
From the equation of reaction, the number of moles of oxygen is 3.
To find the volume of oxygen produced, we'll have to use ideal gas equation
PV = nRT
P = pressure
V = volume
n = number of moles
R = ideal gas constant = 0.082J/mol.K
T = temperature of the ideal gas
PV = nRT
V = nRT/ P
V = (3 × 0.082 × 293.15) / 0.919
V = 72.1149 / 0.919
V = 78.47L
Volume of the gas is 78.47L
3 hazards that occur in teaching and learning of science
HELP PLEASE I WILL GIVE 100 PONTS
All of the following properties of a solution would decrease if you increased the concentration of solute, EXCEPT which?
A. freezing point
B. boiling point
C. vapor pressure
D. they would all decrease
Answer:
boiling point
Explanation:
1.
__________ are the most organized state of matter.
Solids
Liquids
Gases
2.
States of matter change when ________ is added or removed.
Plasma
Energy
3.
Which state of matter has the most movement of its particles?
Solid
Liquid
Gas
Solids are the most organized state of matter. States of matter change when energy is added or removed. Gas is the state of matter has the most movement of its particles.
What are the states of matter?The states of matter are the different forms of the matter in which it can exist. They are solids, liquids and gases. Solids are the states of matter in which molecules are very near to each other. They have fixed shape and volume. Liquids is the states of matter in which molecules are a little far from each other. They have different shape and fixed volume. Gas is the states of matter in which molecules are a very far from each other. They have different shape and different volume.
There are two more states of matter which are called as Plasma, Bose Einstein Condensate.
Plasma have highest energy and Bose Einstein Condensate have lowest energy.
Therefore, Solids are the most organized state of matter. States of matter change when energy is added or removed. Gas is the state of matter has the most movement of its particles.
To learn more about States of matter click:
https://brainly.com/question/29069107
#SPJ3
How many moles of H2 are needed to produce 18 moles NH3 in the reaction below?
N2 + 3 H2 —> 2 NH3
Answer:
27 moles of H₂
Explanation:
Equation of reaction:
N₂ + 3H₂ → 2NH₃
From the equation of reaction,
3 moles of H₂ is required to produce 2 moles of NH₃
3 moles H₂ = 2 moles of NH₃
X moles of H₂ = 18 moles of NH₃
X = (3 * 18) / 2
X = 27 moles of H₂
27 moles of H₂ is required to produce 18 moles of NH₃
10. You can protect yourself from radiation by
going up to a higher elevation
increasing the time you are exposed
increasing your water intake
getting further away from the radiation source
Answer:
You can protect yourself from radiation by getting further away from the radiation source .
Is it illegal for fracking companies to let water that has been used for fracking deep back into the ground ?
Answer:
It is illegal
Explanation:
Fracking involves drilling deep into the earth crust in which a water mixture with high pressure is directed at the rock with the purpose of releasing the gas inside. This process is common in the exploration of natural gas and other hydrocarbons.
It is however illegal because the water are mostly contaminated due to the hydrocarbons present and harmful to life. It is advisable and the best to remove the water and recycle them in treatment plants
Whats the answer to 7/2 × 1/5?
Answer:7/10
Explanation:multiply top and bottom
What mass in grams of hydrogen is produced by the reaction of 2.0 g of magnesium? (Make sure to balance the reaction first)
Mg(s) + H2O(1) --> Mg(OH)2(s) + H2 (8)
Answer:
0.164541341 g H2
Explanation:
1) Convert grams to moles by dividing by RMM of Magnesium (24.31g).
2g Mg * (1 mol Mg / 24.31 g Mg) = 0.082270671 mol of Mg
2) Use the balanced equation's ratio of 1 mol Mg: 1 mol H2.
0.082270671 mol of Mg = 0.082270671 mol of H2
3) Convert the mol of H2 back into grams by multiplying by H2's RMM (2 g).
0.082270671 mol of H2 * 2 g H2 = 0.164541341 g H2
* Answer can be rounded to your liking *
Do liquids have higher coefficients of expansion than solids do
Answer: yes they do.
Explanation:
I'm tryna get more points because my other account got blocked for the next 48 hours.
(Don't be mad at me please)
Write a hypothesis:
What is the mole ratio of the cation and the anion in a precipitate?
Answer:
The mole ratio of the cation and the anion in a precipitate is a simple fraction. ( im sorry if this dosent help a lot.)
Explanation:
pH of a 0.00072 M HCl solution.
Answer:
3.14
Explanation:
pH=-log(H+)
- Hope that helps! Please let me know if you need further explanation.
Stabiliţi numerele de oxidare ale tuturor elementelor prezente în următoarele substanţe chimice, ţinând cont de principalele reguli de stabilire a NO: ⦁ NaNO3 ⦁ AlPO4 ⦁ CaCO3 ⦁ KMnO4 ⦁ K2Cr2O7 ⦁ HClO4 (acid percloric) ⦁ HClO3 (acid cloric) ⦁ HClO2 (acid cloros) ⦁ HClO (acid hipocloros)
Answer:
a.
N = +2
O = -2
b.
Na = +1
O = -2
N = +5
c.
O = -2
Al = +3
P = +5
d.
O = -2
Ca = +2
C = +4
e
O = -2
Mn = +7
K = +1
f.
O = -2
K = +1
Cr = +6
g.
O = -2
Cl = +7
Cr = +1
h.
O = -2
H = +1
Cr = +5
i.
O = -2
H = +1
Cr = +3
k.
O = -2
H = +1
Cr = +1
Explanation:
A. NU
Numărul de oxidare a azotului = +2
Numărul de oxidare a oxigenului = -2
b. NaNO₃
Numărul de oxidare de Na = +1
Numărul de oxidare de O = -2
Numărul de oxidare de N = +5
c. AlPO₄
Numărul de oxidare de O = -2
Numărul de oxidare al Al = +3
Numărul de oxidare al P = +5
d. carbonat de calciu
Numărul de oxidare de O = -2
Numărul de oxidare de Ca = +2
Numărul de oxidare de C = +4
e. KMnO₄
Numărul de oxidare de O = -2
Numărul de oxidare al Mn = +7
Numărul de oxidare al lui K = +1
f. K₂Cr₂O₇
Numărul de oxidare de O = -2
Numărul de oxidare al lui K = +1
Numărul de oxidare al Cr = +6
g. HClO₄
Numărul de oxidare de O = -2
Numărul de oxidare al Cl = +7
Numărul de oxidare al Cr = +1
h. HClO₃
Numărul de oxidare de O = -2
Numărul de oxidare al lui H = +1
Numărul de oxidare al Cr = +5
i. HClO₂
Numărul de oxidare de O = -2
Numărul de oxidare al lui H = +1
Numărul de oxidare al Cr = +3
k. HClO
Numărul de oxidare de O = -2
Numărul de oxidare al lui H = +1
Numărul de oxidare al Cr = +1.
What organelle does the process of cellular respiration?
Answer:
Mitochondria
Explanation:
The mitochondrion is the site of cellular respiration. The first part of cellular respiration (glycolysis) happens in the cytoplasm. The second part of cellular respiration needs oxygen, and it occurs in mitochondria.
(02.02 MC)
How is Earth's surface most likely to change in a place that experiences strong sand storms?
Answer:
Mechanical weathering will cause wearing down of rocks.
Explanation:
All the other choices aren't suitable for a dry climate where sand storms occur.
What is the molariity of a 50.0 mL aqueous solution containing 10.0 grams of copper (II) sulfate, CuSO4?
Answer:
The molarity is 1.26 [tex]\frac{ moles}{L}[/tex]
Explanation:
Molarity is a unit of concentration that is based on the volume of a solution and represents the number of moles of solutes contained in a liter. The molarity of a solution is calculated by dividing the moles of the solute by the liters of the solution and is expressed in units (moles / liter).
[tex]Molarity=\frac{number of moles of solute}{Volume}[/tex]
You must calculate the number of moles of CuSO₄. So, being:
Cu: 63.54 g/moleS: 32 g/moleO: 16 g/molethe molar mass of CuSO₄ is
CuSO₄=63.54 g/mole + 32 g/mole + 4* 16 g/mole= 159.54 g/mole
Then it is possible to apply the following rule of three: if 159.54 g of CuSO₄ are present in 1 mole, 10 g in how many moles are they?
[tex]moles=\frac{10 g*1 mole}{159.54 g}[/tex]
moles= 0.063 moles
Then:
number of moles of solute= 0.063 molesVolume= 50 mL= 0.05 L (Being 1L=1000 mL)Replacing in the definition of molarity:
[tex]Molarity=\frac{0.063 moles}{0.05 L}[/tex]
Molarity= 1.26 [tex]\frac{ moles}{L}[/tex]
The molarity is 1.26 [tex]\frac{ moles}{L}[/tex]
True or False? The Grand Canyon was probably formed through wind abrasion.
Answer:
True.
Explanation:
Wind abrasion is a form of erosion.
Hope I helped ya.
< Sarah >
How killers cover up their crimes
Answer:
They hide their evidence and destroy any if absolutely necessary. You also would need to wear gloves, so you dont put your identity everywhere. Also, you need to flee and just forget that what you did, did not happen. And hope you dont get arrested xD
Explanation:
The first step of the scientific method is
A make a conclusion
B make observations
C state the problem
D form a hypothesis
E run an experiment
Answer:
B. Make observation
Explanation:
Know the steps and you will see all else comes afterward.
- Hope that helps! Please let me know if you need further explanation.
How many carbon and hydrogen atoms are there?
Answer:
13 carbon and 24 hydrogen
Explanation:
There are 24 hydrogen atoms.
There are 13 carbon atoms.
ILL GIVE YOU BRAINLIST * have to get it right * !!! Although individual body systems can perform specific functions, they depend on one another and work together for the good of the entire organism.
Which of the following provides the best evidence that the digestive system and the muscular system work together to carry out their functions?
PLEASE HELP ME ANY ANSWER THAT IS SAYING IDK OR SOMETHING LIKE THAT WILL BE REPORTED I NEED HELP OK FIRST TO ANSWER CORRECTLY GETS BRAINLIEST
(Match the term with the definition) In E = mc2,
1)mass
2)kilogram
3)energy
4)joules
5)meters/second
6)speed of light
a)What does E stand for?
b)What does m stand for?
c)What does c stand for?
d)What is the unit for E?
e)What is the unit for m?
f)What is the unit for c?
Answer:
a → 3
b → 1
c → 6
d → 4
e → 2
f → 5
Hope this helps!
Answer:
a → 3
b → 1
c → 6
d → 4
e → 2
f → 5
Explanation: hope it helps!!
1. Calculate the molarity of 35g of calcium chloride (CaCl2) that is dissolved in 850ml of water. (Calculate moles first)
a. 0.27M
b. 0.38M
c. 0.32M
d. 0.80M
2. Calculate the molarity of 90g of copper sulfate (CuSO4) when dissolved in 5 L of water.
a. 0.112M
b. 2.8M
c. 0.56M
d. 0.50M
3. What is the molarity of NaOH if 0.70 moles are dissolved in 250 ml of water?
a. 175,000M
b. 2.8M
c. 0.175M
d. 4M
4. How many moles of Lithium oxide (Li20) are in 2 L of solution with a molarity of 2.0M?
a. 1 mole
b. 2 moles
c. 0.2 moles
d. 4 moles
5. How many moles of NaCl are in 7.5 L of 0.5M?
a. 3.75 moles
b. 15 moles
c. 0.066 moles
d. 2.5 moles
Answer:
yo I got same question do u know it
what was the role of the lung model in this scenario
Answer:
what?
Explanation:
science
Which answer gives both a positive impact and a negative impact associated with the effects of nitrogen- and phosphorus-enhanced fertilizers?
A- increased algal blooms and damage to drinking water
B- increased plant growth and damage to drinking water
C- increase in denitrifying bacteria and increase in plant growth
D- increase in a limiting resource and increase in denitrifying bacteria
Answer:
The answer is B
Explanation:
Answer:
Which answer gives both a positive impact and a negative impact associated with the effects of nitrogen- and phosphorus-enhanced fertilizers?
1. increased algal blooms and damage to drinking water
Right Answer 2. increased plant growth and damage to drinking water
3. increase in denitrifying bacteria and increase in plant growth
4. increase in a limiting resource and increase in denitrifying bacteria
Explanation:
Convert 4.6 atm to mmHg.
What Newton’s law is this a example of:
When a bullet is fired from a rifle through a small explosion. The rifle shooting the bullet is pushed backwards after the explosion.
Answer:
Newton's third law
Explanation:
every action has an equal and opposite reaction.
