Answer:
Theoretical yield
Explanation:
hope this helps :)
Answer : B) theoretical yield
percent yield = Actual yield : theoretical yield x 100%
actual yield = actual product
theoretical yield = the product that should be produced (from the calculation of the reaction coefficient)
separating mixtures: filtration
hi these are the answers :)
6. If the broken wire of the top branch
is connected, what will be true of the
lightbulbs? sc.6.P.13.1
A All of the bulbs would be lit.
B
None of the bulbs would be lit.
C Only the top bulb would be lit.
D Only the top two bulbs would be lit.
I NEED THIS !!
Answer: When two light bulbs are connected in parallel, which is true? A. The total resistance is less than the resistance of either bulb alone. B. The Voltage provided
Explanation:
Answer:
D. Only the top two bulbs would be lit.
Explanation:
When you connect the top light bulb, both the top and middle light bulbs will be lit. But, the bottom light bulb will not be lit because it is not connected. In order for a light bulb to be lit, it has to be connected on both sides by wire.
< Hope this helps! :)
Which set of four quantum numbers corresponds to an electron in a 4f orbital?.
Answer:
4s
4p
4d
4f
these are the four quantum numbers
Hydrogen ions and PH
Answer:
the more hydrogen ions present, the lower the pH; conversely, the fewer hydrogen ions, the higher the pH.
A 0.100 moles of solid carbon dioxide is allowed to sublime in a balloon. The final volume of the balloon is 1.00 L at 300. K. What is the pressure, in atm, of the gas?
The pressure of the carbon dioxide that is allowed to sublime in atm, is 2.463 atm
Data obtained from the question Number of mole (n) = 0.1 mole Volume (V) = 1 L Temperature (T) = 300 KGas constant (R) = 0.0821 atm.L/Kmol Pressure (P) =? How to determine the pressureThe pressure of the gas can be obtained by using the ideal gas equation as illustrated below:
PV = nRT
P × 1 = 0.1 × 0.0821 × 300
P = 2.463 atm
Thus, the pressure of the gas is 2.463 atm
Learn more about ideal gas equation:
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00000044m
300000km/s
Both in scientific notation
Answer:
4.4 × 10^-7
3 × 10^5
Explanation:
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What is the percent composition of barium in barium chloride?
Answer:
The percent composition of barium in barium chloride is 65.9%
Explanation:
percent composition = molar weight of barium/molar weight of barium chloride x 100
from periodic table the molar weight of barium = 137.3
and the molar weight of BaCl2 = 137.3 +( 35.5 x 2)=208.3
% composition is therefore = 137.3/208.3 x 100=65.9%
When 0.25 g of the organic compound naphthalene are burned in a bomb calorimeter, the temperature of the water in the
calorimeter increases from 24.00°C to 26.43 °C. The calorimeter's heat capacity is 4.13 kJ/°C. How much heat (9rxn) in kilojoules is
released by the combustion of the naphthalene?
The heat released by the combustion of the naphthalene is mathematically given as
H=2.508975 KJ
What is heat released?
Question Parameters:
0.25 g of the organic compound naphthalene
The calorimeter increases from 24.00°C to 26.43 °C.
The calorimeter's heat capacity is 4.13 kJ/°C
Generally, the equation for the Heat released is mathematically given as
H = mCdT
Therefore
H= mC ( T2 - T1)
H= 0.25*4.13 ( 26.43- 24)
H= 2.508975 KJ
In conclusion, the heat released by the combustion of the naphthalene is
H=2.508975 KJ
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Which of the following is NOT a property of Alkali Metals?
A) They form ions with a charge of +2.
B) They are lustrous.
C) They are extremely reactive with water.
D) They are good conductors of heat and electricity.
Previous
Answer:
Which of the following is NOT a property of Alkali Metals?
A) They form ions with a charge of +2.
B) They are lustrous.
C) They are extremely reactive with water.
D) They are good conductors of heat and electricity. Previous
Explanation:
The Answer is D.
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Explain the three processes of nuclear change and what is produced during as a result of that change PLS HELP
Answer:
I don't know how to do right now
PLEASE HELP ME I NEED YALL!! I WILL MARK U BRAINLIEST PLEASE!!
Balanced equation: C₂H₄ + 3O₂ → 2CO₂ + 2H₂O
O₂ required: 3/1 x moles C₂H₄ = 3/1 x 6.51 = 19.53 moles
How many moles are in 223.2 g iron (Fe)?
Answer:
there are 4 moles in 223.2 g Iron (Fe)
What is a total eclipse?
A) When the Sun partially blocks out
the moon.
B) When the moon partially blocks
out the Sun.
C) When the moon blocks out the
Sun entirely.
D) When the Sun blocks out the
moon entirely.
Hope it helps ~
The symbol of the element with an atomic mass of 207. 2.
Answer:
Polonium-207
………………………
Please brainliest me i am begging you
W(OH)2 + 2 HCl → WCl2 + 2 H2O
How many grams of W(OH)2 are needed to react with 150 grams of HCl?
(MM W(OH)2 = 217.855 g/mol) (MM HCl = 36.461 g/mol)
Group of answer choices
448.126 grams HCl
50.209 grams HCl
50.209 grams W(OH)2
448.126 grams W(OH)2
The amount of W(OH)2 needed would be 448.126 g
Stoichiometric calculationFrom the equation of the reaction:
W(OH)2 + 2 HCl → WCl2 + 2 H2O
The mole ratio of W(OH)2 to HCl is 1:2
Mole of 150g HCl = 150/36.461
= 4.11 moles
Equivalent mole of W(OH)2 = 4.11/2
= 2.06 moles
Mass of 2.06 moles W(OH)2 = 2.06 x 217.855
= 448.188g
More on stoichiometric calculations can be found here: https://brainly.com/question/8062886
At the end of an experiment your expected amount of product was 35 grams, but you only produced 32 grams. Calculate the percent yield (% yield)
Answer:
the answer is I'm pretty that it's
Explanation:
Ur Wellcome
Carbon Monoxide is poisonous for us, why?
Answer:
Carbon monoxide is harmful when breathed because it displaces oxygen in the blood and deprives the heart, brain and other vital organs of oxygen. Large amounts of CO can overcome you in minutes without warning — causing you to lose consciousness and suffocate.
Please mark my answer the brainliest and rate me 5 star and follow me.please please please please please please
Based on the oxidation states of the atoms in this reaction, answer the questions. 4Fe(0) 3O2(0) → 2Fe2(3 )O3(2-) How many electrons does the iron half-reaction lose? How many electrons does the oxygen half-reaction gain? What is the total number of electrons that are moved in this oxidation-reduction reaction?
Answer:
12, 12, 12, edge 2022!
Explanation:
Answer:
How many electrons does the iron half-reaction lose? 12
How many electrons does the oxygen half-reaction gain? 12
What is the total number of electrons that are moved in this oxidation-reduction reaction? 12
Question 12 (4 points)
If there were 40 grams of sodium that reacted with 60 grams of chlorine, how
many grams of sodium chloride formed?
A. 40 grams
B. 60 grams
C. 20 grams
D. 100 grams
Answer:
100grams
Explanation:
law of conservation of mass
if the chemical or whatever, quantity is given then it stay the same in the beginning and the end. Just add them in the end and if something is missing that means you have done something wrong i am just telling for experiment
At standard temperature and pressure, what is the volume of one mole of gas?
A. 22.4 liters
B. 0.0821 liters
C. The same as the molar mass of the gas
D. The product of protons, neutrons, and electrons in the gas
Answer:
A. 22.41
Explanation:
goodluck man, just typing a little bit more for the 20 words
Answer:
22.4liters
Explanation: I did it in a quiz.
In what circumstance will a flash of lightning travel through the sky and touch the ground?
Calculate the volume of an
object with the following
dimensions:
6.0 cm x 8.0 cm x 2.0 cm
Potential energy is what
Answer:
the energy possessed by a body by its value of its position relative to others, stresses within itself, electric charge, and other factors.
Explanation:
Gold is one of the first metals extracted from the earth. Explain why
Which of the following is in the same group as strontium? a Calcium b Chlorine c Xenon d Silver
Answer:
a. Calcium
Explanation:
Strontium and Calcium are both in the same group, Group 2.
Answer:
Calcium and strontium are in the same group.
Group 2a of the perodic table are the alkaline earth metals
what ocurrrs when the vapor pressure of a liquid is equal to the external atmospheric pressure
Answer:
The change from a liquid phase to a gaseous phase.
so the answer would be it changed to a gaseous phase
---------------
This is what occurs when the vapor pressure of the liquid is equal to the atmospheric pressure exerted on the liquid.
Balance the equation:
GC2MmCh2
—
the 2 is a subscript (small)
Answer:
2 Gc + 1 Mm + 3 Ch → 1 Gc2MmCh3
Note:
is this the s'more reaction?
-If not might there be a typo?
- if so, might it be one of these?
2 Gc + M + 2C → Gc2MC22 Gc + Mm + 3C → Gc2MmC3Help!!! I am not sure its a chemistry question : A student in chemistry class mixes two chemicals together and observes bubbling and the beaker getting warmer. Which of the following would NOT provide the student with evidence that a chemical reaction has occurred?
Question options:
Mixing chemicals always leads to a chemical change.
Heat indicates that an energy change is occurring.
Bubbling represents a gas being produced.
A new substance is being formed.
Answer:
A
Explanation:
Mixing chemicals does not always lead to a chemical change.
Mixing chemicals always leads to a chemical change would not provide the student with evidence that a chemical reaction has occurred.
What is chemical reaction ?In a chemical reaction, one or more substances also known as reactants are changed into one or more additional substances also known as products. Chemical elements or chemical compounds make up substances.
When substances or compounds undergo a chemical transformation to create new substances or compounds, a chemical reaction takes place. Chemical equations use symbols and the chemical formulae of the molecules involved in the reaction to express chemical processes.
Cells, animals, people, and insects may all grow, develop, reproduce, and adapt thanks to chemical processes.
Thus, option A is correct.
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how many liters of neon gas will 3.55 mol occupy at STP?
STP (Standard Temperature and Pressure):
At STP, 1 mole of an ideal gas will occupy a volume of 22.4 liters (Note: the new defined STP volume is 22.7 liters).
The volume is 77 L .
3 moles of oxygen at STP will occupy a volume of 3×22. 4=67. 2 L.
1.5 moles of oxygen at stp = 22.4 x 1.5 = 33.6 litres.
Therefore , number of moles of oxygen is : Now , we know volume of 1 mole of gas at S.T.P is 22.4 liters . Therefore , volume of 0.1 mole of oxygen at S.T.P is : Therefore , the volume of 3.2 gram atom of oxygen at S.T.P is 2.24 liters .
Helium is the largest, so that’s going to have the largest volume. Because at STP, volume was going to be equivalent to moles of gas.
Therefore, chemists introduced the concept of molar volume. Molar volume of a gas is defined as the volume of one mole of the gas. Thus, the molar volume is also the volume occupied by 6.02 x 1023 particles of gas. The molar volume of any gas is 22.4 dm3 mol–1 at STP or 24 dm3 mol–1 at room conditions.
oxygen gas
One mole of oxygen gas occupies 22.4 l volume at STP.
67.2 liters
The answer depends on the temperature and pressure. If the gas is at STP, THE 1 mole is 22.4 liters. 3 moles x 22.4 L/mol = 67.2 liters.
Well, assuming that the hydrogen gas is contained at STP , then the molar volume would be 22.7⋅3=68.1 L .
0.5 moles⋅22.4 L/mol=11.2 L , and so on.
The molar volume of any gas at S.T.P. is 22.4L .
So, the volume of an ideal gas is 22.41 L/mol at STP. This, 22.4 L, is probably the most remembered and least useful number in chemistry.
At STP, one mol of Ideal Gas occupies 22.4 L and one mmol of Ideal Gas occupies 22.4 mL.
help this kid , please ╮(╯_╰)╭
Answer:
1)
[tex]24 \times 60 \times 60 \\ 86400[/tex]
