Ag + Br2 → AgBr
balance equation
2Ag + Br2 → 2AgBr
the image that the lens forms on the back of the eye is
upside down.
A. True
B. False
Answer:
the correct ansewr isA true
Help me anyone? Thanks!!!!
What is the mass of 3.92 mol of calcium chloride ?
Answer: Do a quick conversion: 1 moles Calcium Chloride = 110.984 gram using the molecular weight calculator and the molar mass of CaCl2.
Explanation:
Answer:
three mole of CaCI2 have a mass of 3•molx110.98•g•mol-1=333•g
One of the possible reactions for nuclear fusion involves the collision of 2 deuterium
nuclei. Complete the reaction by identifying the missing particle: 2/1H + 2/1H ——> 1/0n +?
Answer:
³₂He
Explanation:
From the question given above, the following equation was obtained
²₁H + ²₁H —> ¹₀n + __
Let ᵇₐX be the missing part of the equation. Thus, the equation becomes:
²₁H + ²₁H —> ¹₀n + ᵇₐX
Next, we shall determine b, a, and X. This can be obtained as follow:
2 + 2 = 1 + b
4 = 1 + b
Collect like terms
b = 4 – 1
b = 3
1 + 1 = 0 + a
2 = 0 + a
a = 2
ᵇₐX => ³₂X => ³₂He
Thus the equation is:
²₁H + ²₁H —> ¹₀n + ᵇₐX
²₁H + ²₁H —> ¹₀n + ³₂He
The missing part is ³₂He
Help pleaseeeeeee:)))))
Answer:
the answer is: 1'699.98 ok i hope i have helped maybe
Which formula represents a nonpolar molecule containing polar covalent bonds?
Answer:
Figure 2 represents a nonpolar molecule containing polar covalent bonds
Explanation:
The CO2 molecule is linear, formed by 3 atoms and the electronegativity variations are equal, so its dipolar moment will be null, and this molecule will be nonpolar, however, it has polar covalent bonds.
What is the final chemical equation from the following intermediate chemical equations?
2 equations. First: upper P subscript 4 upper O subscript 6 (s) right arrow upper P subscript 4 (s) plus 3 upper O subscript 2 (g). Second: upper P subscript 4 (s) plus 5 upper O subscript 2 (g) right arrow upper P subscript 4 upper O subscript 10 (s).
Upper P subscript 4 upper O subscript 6 (s) plus 2 upper O subscript 2 (g) right arrow upper P subscript 4 upper O subscript 10 (s).
Upper P subscript 4 upper O subscript 6 (s) plus 8 upper O subscript 2 (g) right arrow 2 upper P subscript 4 (s) plus upper P subscript 4 upper O subscript 10 (s).
Upper P subscript 4 upper O subscript 6 (s) plus 15 upper O subscript 2 (g) right arrow upper P subscript 4 (s) plus upper P subscript 4 upper O subscript 10 (s).
Upper P subscript 4 upper O subscript 6 (s) StartFraction 5 over 3 EndFraction upper O subscript 2 (g) right arrow upper P subscript 4 upper O subscript 10 (s).
pls hurry
Answer:
A
Explanation:
edge2021
Answer:
A.
Explanation:
Edge
What volume (in liters) of a 3.00M HCl solution must be dispensed to obtain 0.750 moles of HCI
Answer: 0.750
Explanation:
Condensation is the process by which water vapor in the air is changed. Into liquid water. Water molecules in the vapor form are arranged and randomly than in water.As condensation occurs liquid water forms from the vapor, the water molecules become more organized and heat is..
A)absorbed
B) created
C) radiated
D)realeased
Please help!!!
Answer:
the answer is B.
Explanation:
The heat is created
What is the molar mass of NH4?
Answer:
96.09 grams per mole
Explanation:
The chemical formula of ammonium carbonate is (NH4)2CO3, a chemical compound with a molar mass of 96.09 grams per mole.
Sorry if its wrong! ~Kira
What are the stages of the life cycle of the sun
Main sequence star - red giant - white dwarf
In Order
Balance the 2 chemical equation below: 1) _____H2 + _____02 ---> _____H20 2) _____CH4 + _____Cl2 ---> _____CCl4 + _____HCl Your answer:
Answer:
1.) 2H2 + O2 ---> 2H2O
2.) CH4 + 4Cl2 ---> CCl4 + 4HCl
Explanation:
In order to balance the equation, you have to make sure there are the same amount of each element on both sides.
Ex (#1). By adding the coefficients infront of H2 and H20, You now have 4 hydrogen's and 2 oxygens on the left side as well as 4 hydrogens and 2 oxygens on the right side.
Sorry if that's confusing, but hope this helps! :)
If a gas is cooled from 222 K to 125 K and the volume is kept constant, what would be the final
pressure if the original pressure was 760 mmHg?
= 25 X 5 = (use the correct number of sig figs)
Answer:
1.25 *10^2
Explanation:
25*5 = 125
= 1.25 *10^2
perspex and polythene are two examples of what?
Most objects are not able to float in midair. What must be occurring for these rings to float instead of fall
Answer:
magnetic force
Explanation:
A magnet is defined as an object that can attract other objects that are made of iron. Magnets also repels or push away other magnets. Every piece of magnets have two poles namely, a south pole and a north pole. When one magnet comes near another magnet, it exerts a magnetic force on the other magnet. This force can be attractive force or repelling force depending upon the poles surface of the magnet that are close to each other.
Like pole repel each other while opposite poles attract each other.
In the context, the rings of magnet are floating in the air because there is a magnetic force that is repelling the like surfaces or the like poles of these magnetic rings.
in his studies of a different types of cells under q microscope,Rudolf Virchow saw many of the cells dividing into cells how did virchows observations contribute to the cell theory?
Answer:
Virchow used the theory that all cells arise from pre-existing cells to lay the groundwork for cellular pathology, or the study of disease at the cellular level. His work made it more clear that diseases occur at the cellular level. His work led to scientists being able to diagnose diseases more accurately.
Explanation:
Hope this helps
ionization refers to the process of what
Answer:
Any process that leads to the dissociation of a neutral atom or molecule into charged particles ions; the state of being ionized.
Explanation:
_ Na3PO4 + _ HCl NaCl + _ H3PO4
Answer:
Na₃PO₄ + 3HCl —> 3NaCl + H₃PO₄
The coefficients are: 1, 3, 3, 1
Explanation:
_Na₃PO₄ + __HCl —> __NaCl + _H₃PO₄
The above equation can be balance as follow:
Na₃PO₄ + HCl —> NaCl + H₃PO₄
There are 3 atoms of Na on the left side and 1 atom on the right side. It can be balance by writing 3 before NaCl as shown below:
Na₃PO₄ + HCl —> 3NaCl + H₃PO₄
There are 3 atoms of Cl on the right side and 1 atom on the left side. It can be balance by writing 3 before HCl as shown below:
Na₃PO₄ + 3HCl —> 3NaCl + H₃PO₄
Now, the equation is balanced.
The coefficients are: 1, 3, 3, 1
what happens when water changes from a solid to a liquid to a vapor
Answer:
It forms a water cycle!
Hope it helps!!!
What is the pH of a 0.0075 molar solution of ammonia (NH3)? given:publish =4.75.
Answer:
10.57
Explanation:
Step 1: Given and required data
Concentration of NH₃ (Cb): 0.0075 MBasic dissociation constant for NH₃ (Kb): 1.8 × 10⁻⁵Step 2: Write the basic dissociation reaction for NH₃
NH₃(aq) + H₂O(aq) ⇄ NH₄⁺(aq) + OH⁻(aq)
Step 3: Calculate the concentration of OH⁻
We will use the following expression.
[OH⁻] = √(Kb × Cb)
[OH⁻] = √(1.8 × 10⁻⁵ × 0.0075 M) = 3.7 × 10⁻⁴ M
Step 4: Calculate the concentration of H⁺
We will use the water ion product.
Kw = 1.0 × 10⁻¹⁴ = [H⁺] × [OH⁻]
[H⁺] = 1.0 × 10⁻¹⁴/3.7 × 10⁻⁴ = 2.7 × 10⁻¹¹ M
Step 5: Calculate the pH of the solution
We will use the definition of pH.
pH = -log [H⁺] = -log 2.7 × 10⁻¹¹ = 10.57
What is the difference between a transition metal and an f-element?
Answer: The transition elements are in the d-block, and in the d-orbital have valence electrons. They can form several states of oxidation and contain different ions. Inner transition elements are in the f-block, and in the f-orbital have valence electrons.
Explanation:
Transition metals are elements that have partially filled the d-orbital while in f-block elements the electron is filled in the f-orbital.
What are transition metals and f- block elements?Transition elements or transition metals are elements that have partially filled d-orbitals. An element that has the ability to produce cations with an incompletely filled d-orbital or an element having a d-subshell that is incompletely filled with electrons.
Any element which belongs to the d-block of the modern periodic table or is present in group 3 to 12 is considered to be a transition metal.
The f-block elements are those in which the f-orbital gets filled up by electrons. The f-block elements have electrons 1 to 14 in their f-orbital, and 0 to 1 in their d-orbital.
The f-block element is classified into two series one lanthanides and other actinides corresponding to the filling of electrons in 4f and 5f orbitals respectively. The f- block elements are placed at the bottom of the modern periodic table.
Learn more about transition metals and f- block elements, here:
https://brainly.com/question/2879928
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What is the concentration of silver ions where silver iodide, Agl, is in a solution of hydroiodic
acid, HI, that has a pH of 3.55? Ksp = 8.51x10-17
Answer:
[tex][Ag^+]=2.82x10^{-4}M[/tex]
Explanation:
Hello there!
In this case, for the ionization of silver iodide we have:
[tex]AgI(s)\rightleftharpoons Ag^+(aq)+I^-(aq)\\\\Ksp=[Ag^+][I^-][/tex]
Now, since we have the effect of iodide ions from the HI, it is possible to compute that concentration as that of the hydrogen ions equals that of the iodide ones:
[tex][I^-]=[H^+]=10^{-3.55}=2.82x10^{-4}M[/tex]
Now, we can set up the equilibrium expression as shown below:
[tex]Ksp=8.51x10^{-17}=(x)(x+2.82x10^{-4})[/tex]
Thus, by solving for x which stands for the concentration of both silver and iodide ions at equilibrium, we have:
[tex]x=[Ag^+]=2.82x10^{-4}M[/tex]
Best regards!
What the resalut H2SO4 +CO3-=?
Answer:
H2SO4 + CO3 = H2CO3 + SO4
Explanation:
H2SO4 + CO3
This is the reaction of sulphuric acid and carbon trioxide.
Balanced reaction is;
H2SO4 + CO3 = H2CO3 + SO4
So they react to produce carbonic acid and sulfate.
An arctic weather balloon is filled with 34.1L of helium gas inside a prep shed. The temperature inside the shed is 5.°C. The balloon is then taken outside, where the temperature is â5.°C. Calculate the new volume of the balloon. You may assume the pressure on the balloon stays constant at exactly 1atm. Be sure your answer has the correct number of significant digits.
Answer:
When the balloon is taken outside if the outside temperature is lower than the temperature inside the shed, the volume of the helium gas will decrease according to Charles' law. However, if the temperatureoutside is higher than inside the shed, the volume of the helium gas in the weather balloons will increase.
Note: The question is not complete. Assumptionshas been made about the temperature.
Explanation:
According to Charles' law of gases, the volume of a given mass of gas is directly proportional to its temperature in Kelvin provided its pressure remains constant.
Mathematically, V1T1 = V2T2
Given that the volume of the helium gas inside the weather balloon is 34.1 L at a temperature of 5 °C;
When the balloon is taken outside if the outside temperature is lower than the temperature inside the shed, the volume of the helium gas will decrease according to Charles' law. However, if the temperatureoutside is higher than inside the shed, the volume of the helium gas in the weather balloons will increase.
Assuming, the temperature outside the shed was 6.5 °C:
V1 = 34.1 L, T1 = 5.°C or 5.0 × 10^-10 °C = 273.1500000005
V2 = ?, T2 = 6.5 °C 6.5 × 10^-10 °C = 273.15000000065
V2 = V1T1/T2
V2 = (34.1 × 273.1500000005) / 273.15000000065
V2 = 34.1 L
Due the very small increase in temperature, the volume of the balloon increases only very slightly that is increase that it is negligible.
What volume of concentrated 15M H2SO4 is required to prepare 0.75 liters of a 6.0M solution?
Answer:
30 ml
Explanation:
The equilibrium-constant expression is used to describe the concentration of reactants and products for a reaction in dynamic equilibrium. For ideal gases and ideal solutions in homogeneous equilibria, where all reactants and products are in the same phase, the extent to which a particular chemical reaction proceeds to products is given by the equilibrium equation.
aA+bB⇌cC+dD , K=[C]c[D]d[A]a[B]b
where K is the equilibrium constant and the right-hand side of the equation is known as the equilibrium-constant expression.
The concentration of each product raised to its coefficient is divided by the concentration of each reagent raised to its coefficient according the the balanced chemical equation. Therefore, the higher the concentration of products, the larger the value of K will be.
Required:
Identify the proper form of the equilibrium-constant expression for the equation.
N2(g)+O2(g)⇌2NO(g)
Answer: [tex]K=\frac{[NO]^2}{[N_2]^1[O_2]^1}[/tex]
Explanation:
Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as [tex]K[/tex]
For the given chemical reaction:
[tex]N_2(g)+O_2(g)\rightleftharpoons 2NO(g)[/tex]
The expression for [tex]K[/tex] is written as:
[tex]K=\frac{[NO]^2}{[N_2]^1[O_2]^1}[/tex]
Erythrogenic acid, C18H26O2, is an acetylenic fatty acid that turns avivid red on exposure to light. On catalytic hydrogenation over a palladium catalyst, 5 equivalents of H2 are absorbed, and stearic acid,CH3(CH2)16CO2H, is produced. Ozonolysis of erythrogenic acid givesfour products: formaldehyde, CH2O; oxalic acid, HO2CCO2H; azelaicacid, HO2C(CH2)7CO2H; and the aldehyde acid OHC(CH2)4CO2H. Drawtwo possible structures for erythrogenic acid, and suggest a way to tellthem apart by carrying out some simple reactions.
Answer:
use research
Explanation:
what are clean sources of energy
solar energy
wind energy
hydro energy
tidal energy
geothermal energy
5.
__________currents can form when liquids and gases are heated. The cold air________and the hot
air
6. Energy can travel through empty space by________Dull black surfaces are_________radiators and_______absorbers. Shiny surface are_________radiators and
absorbers of radiation.
Answer:
Explanation:
Convection
Cold air sinks
Hot air rises
Radiation
faster
better
poor
I think