Answer:
1. 4FeCl3 + 3O2 → 2Fe2O3 + 6Cl2
2. 6 moles of Cl2
Explanation:
1. The balanced equation for the reaction. This is illustrated below:
4FeCl3 + 3O2 → 2Fe2O3 + 6Cl2
2. Determination of the number of mole of Cl2 produce when 4 moles of FeCl3 react with 4 moles. To obtain the number of mole of Cl2 produced, we must determine which reactant is the limiting reactant.
This is illustrated below:
From the balanced equation above,
4 moles of FeCl3 reacted with 3 moles of O2.
Since lesser amount of O2 (i.e 3 moles) than what was given (i.e 4 moles) is needed to react completely with 4 moles of FeCl3, therefore FeCl3 is the limiting reactant and O2 is the excess reactant.
Finally, we can obtain the number of mole Cl2 produced from the reaction as follow:
Note: the limiting reactant is used as it will produce the maximum yield of the reaction since all of it is used up in the reaction.
From the balanced equation above,
4 moles of FeCl3 will react to produced 6 moles of Cl2.
Answer:
C and D
Explanation:
Claims based on science are claims that can be backed up by data and evidence. In the sentence "Data from ice cores show that global temperatures are rising dramatically.", the part "Data from" inclines that there is factually proof backing up the claim. Part of the sentence "Satellite imagery shows.." inclines that there is also proof/evidence backing this claim. The other two sentences are <em>opinions</em> based on science. Instead, they should give some sort of data/evidence that would support that claim.
Answer:
not the best but that is alright
Explanation:
how is your day :)
Answer:
Radiation is energy. It can come from unstable atoms that undergo radioactive decay, or it can be produced by machines. Radiation travels from its source in the form of energy waves or energized particles. There are different forms of radiation and they have different properties and effects.
Related information in Spanish (Información relacionada en español)
On this page:
Ionizing and non-ionizing radiation
Electromagnetic spectrum
Types of ionizing radiation
Periodic Table
Non-Ionizing and Ionizing Radiation
There are two kinds of radiation: non-ionizing radiation and ionizing radiation.
Non-ionizing radiation has enough energy to move atoms in a molecule around or cause them to vibrate, but not enough to remove electrons from atoms. Examples of this kind of radiation are radio waves, visible light and microwaves.
Ionizing radiation has so much energy it can knock electrons out of atoms, a process known as ionization. Ionizing radiation can affect the atoms in living things, so it poses a health risk by damaging tissue and DNA in genes. Ionizing radiation comes from x-ray machines, cosmic particles from outer space and radioactive elements. Radioactive elements emit ionizing radiation as their atoms undergo radioactive decay.
Radioactive decay is the emission of energy in the form of ionizing radiationHelpionizing radiationRadiation with so much energy it can knock electrons out of atoms. Ionizing radiation can affect the atoms in living things, so it poses a health risk by damaging tissue and DNA in genes.. The ionizing radiation that is emitted can include alpha particles, beta particles and/or gamma raysHelpgamma raysA form of ionizing radiation that is made up of weightless packets of energy called photons. Gamma rays can pass completely through the human body; as they pass through, they can cause damage to tissue and DNA.. Radioactive decay occurs in unstable atoms called radionuclides.
Explanation:
Answer:
[A
g
+
] = 3.12 *10^-6 M
Explanation:
Step 1: Data given
Volume silver nitrate = 369 mL
Molarity silver nitrate = 0.373 M
Volume sodium chromate = 411 mL
Molarity sodium chromate = 0.401 M
The Ksp of silver chromate is 1.2 * 10^− 12
Step 2: The balanced equation
2
A
g
+
(
a
q
) + C
rO4^2- (
a
q
) →Ag2CrO4
( s)
Step 3:
[Ag+]i = [AgNO3] * V1/(V1+V2) * 1 mol Ag+ / 1 mol AgNO3
[Ag+]i = 0.373 M * 0.369/ (0.369+0.411)
[Ag+]i = 0.176 M
[C
rO4^2]i = [Ag2CrO4] * V2 /(V1+V2) * 1mol C
rO4^2 / 1 mol Ag2CrO4
[C
rO4^2i = 0.401 M * 0.411 / (0.369+0.411)
[C
rO4^2]i = 0.211 M
Ksp = [Ag+]²[CrO4^2-] = 1.2 * 10^− 12
[CrO4^2-]f = [CrO4^2-]i - 0.5 * [Ag+]i
[CrO4^2-]f = 0.211 -0.088 = 0.123 M
1.2 * 10^− 12 = (
2
x
)
²*(
0.123M
+
x
)
[
C
O
3^
−2]
f >> x
1.2 * 10^− 12 = (
2
x
)
²*
0.123M
x = 1.56 * 10^-6
[A
g
+
]
f = 2x = 3.12 *10^-6 M
,
