The reaction between strong acid and base which results in the formation of salt and water. This reaction is called Neutralization reaction.
Ex:- HCl + NaOH → NaCl + H2O.
10 points
6. Which of the following tables best describes the electrical charges of
atomic particles?
(LOOK AT THE PICTURE)
NO LINKS
Answer:
table C will be the correct answer
The decomposition of potassium chlorate, KClO3, is used as a source of oxygen in labs.
How many moles of potassium chlorate are needed to produce 6.83 moles of oxygen gas?
Reaction takes place is
2KClO3 --> 2KCl + 3O2
from above equation 2 moles of potassium chlorate is forming 3 moles of Oxygen gas.
now given 6.83 moles of oxygen and moles of potassium chlorate is missing,
consider x moles of potassium chlorate are needed to form 6.83 moles of oxygen
from above condition, .
3 》》》》2
x 》》》》6.83
3/x = 2/6.83
x = 3×6.83/2
x= 10.245
Answer- 10.245 moles of potassium chlorate are needed to produce 6.83 moles of oxygen gas.
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Answer:
ertyuioekgdctifrofy?
Explanation:
Research online to find out what the acidity of the rainfall is where you live. If you live in an area which is affected by acid rain, where do you think it is coming from and why?
Write 3-5 paragraphs describing the effects.
If you do not live an area effected by acid rain, choose another city that is effected by acid rain.
Answer & Explanation: Acid rain occurs when sulfur dioxide and nitrogen oxide are released into the air to create a chemical reaction. When the two mix in the air (oxygen), they will get into the water and mix with other pollutants in the air, making acid rain.
Answer:
What is acid rain? Acid rain occurs when sulfur dioxide and nitrogen oxide are released into the air to create a chemical reaction. When the two mix in the air (oxygen), they will get into the water and mix with other pollutants in the air, making acid rain.
What causes acid rain the most? It can be caused by useing nonrenewable resources. Which inclues coal, oil, ect.
What effects can acid rain have? It causes respiratory issues in animals and humans. When acid rain falls down and flows into the rivers and ponds it affects the aquatic ecosystem. It alters the chemical composition of the water, to a form which is actually harmful to the aquatic ecosystem to survive and causes water pollution which can harm our fresh water supply.
They have one electron in the outermost electron shell. These are very active metals and easily lose their single valence electron.
Answer: The statement they have one electron in the outermost electron shell. These are very active metals and easily lose their single valence electron, is true.
Explanation:
Metals are the species which tend to lose electron(s) to acquire stable noble gas configuration.
Elements which tend to lose a single electron in order to acquire stability are active in nature because losing one electron is more easy as compared to losing two or more electrons.
For example, atomic number of sodium is 11 and its electronic distribution is 2, 8, 1.
Since, it contains only one valence electron and by losing it sodium will acquire stability. Hence, sodium is a very reactive metal.
Thus, we can conclude that the statement they have one electron in the outermost electron shell. These are very active metals and easily lose their single valence electron, is true.
3. If a gas has a pressure of 32.1 psi at a temperature of 25°C, then what is the new pressure if the temperature is increased to 75°C?
Answer: 37.485 psi
Explanation: using the gas law and assuming that volume is constant due to nor being stated we use the formula
P1/T1=P2/T2
Note that the tempreture should be changed from °C to K by adding 273
Mrs. Borunda has a sample of oxygen gas that occupies a volume of 600 L at 400 atm pressure. What will the pressure be if she increases the volume to
800 L?
300 atm
450 atm
540 atm
250 atm
Answer:
P₂ = 300 atm
Explanation:
Given that,
Initial volume, V₁ = 600 L
Initial pressure, P₁ = 400 atm
We need to find the pressure if the volume is 800 L.
We know that the relation between pressure and volume is given by :
[tex]P\propto \dfrac{1}{V}\\\\\dfrac{P_1}{P_2}=\dfrac{V_2}{V_1}\\\\P_2=\dfrac{P_1V_1}{V_2}\\\\P_2=\dfrac{600\times 400}{800}\\\\P_2=300\ atm[/tex]
So, the new pressure is equal to 300 atm.
e) A plutonium atom splits apart to form two smaller atoms and free neutrons,
What type of reaction is this, where is it most likely to occur, and what else is
emitted during the reaction? (3 points)
Answer:
subject?
Explanation:
Please help!!
All fake answers get reported immediately. Yes, I am a girl -_-
Answer:
1.)C₃H₈O
2)OH
3.)1-propanol
1.) C4H8O
2.) C2H6O or CH3CH2OH
3.)Ethanol
Explanation:
Hope this help
Which results in a chemical change?
A. A teacher feels a rough cloth
B. A student colors a blue paper
C. A student smells a flower
D. A teacher lights a candle
Answer:
D. I am pretty sure
Explanation:
:))))))
Answer:
D. A teacher lights a candle
Explanation:
What is the correct unit for M1 and M2?
Answer:
M1 and M2 are the masses of two. objects exerting the force on each other, and R is the distance. between their centers.
Explanation:
M1 and M2 are the masses of two. objects exerting the force on each other, and R is the distance. between their centers.
The table below shows the height of a ball x seconds after being kicked.
A 2-column table with 5 rows. The first column is labeled time (seconds) with entries 0, 0.5, 1, 1.5, 2, 2.5, 3. The second column is labeled height (feet) with entries 0, 35, 65, 85, 95, 100, 95.
What values, rounded to the nearest whole number, complete the quadratic regression equation that models the data?
f(x) =
x2 +
x + 0
Based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?
feet
Answer:
-16
81
19
Explanation:
The quadratic regression equation is [tex]y = -16x^2 +81x[/tex], and the estimated height in 0.25 seconds is 19 feet
What are regression equations?Regression equations are used to determine the relationship between sets of data
The dataset is given as:
Time (seconds) Height (feet)
0 0
0.5 35
1 65
1.5 85
2 95
2.5 100
3 95
To determine the quadratic regression equation, we make use of a graphing calculator.
From the graphing calculator, we have the following calculation summary:
a = -16.429
b = 81.071
c = -0.357
A quadratic regression equation, is represented as:
[tex]y = ax^2 + bx + c[/tex]
So, we have:
[tex]y = -16.429x^2 +81.071x -0.357[/tex]
Approximate
[tex]y = -16x^2 +81x[/tex]
The estimated height in 0.25 seconds is:
[tex]y = -16* 0.25^2 +81 * 0.25[/tex]
[tex]y = 19.25\\[/tex]
Approximate
[tex]y = 19[/tex]
Hence, the estimated height in 0.25 seconds is 19 feet
Read more about quadratic regression at:
https://brainly.com/question/25794160
How many moles of Ca(OH)2 are needed to make 200.0 mL of 0.250 M solution? Ca(OH)2
Answer:
0.05 moles of Ca(OH)2
Explanation:
The formula for molarity is: mol/L = M
First, convert 200.0 mL to L.
200 mL/1000 = 0.2 L
Next, plug in the values given.
mol/0.2 = 0.250
Rearrange the equation.
mol = 0.2*0.250
mol = 0.05
If you'd like to check it, simply plug in 0.05 to mol and divide it by 0.2. In theory, you should get 0.250.
Reaction B: 2 H2O2 (aq) + 2 H20 (L) + O2 (g)
10. Identify the reactants in Reaction B.
11. Identify the products in Reaction B.
12. How many molecules are present on the reactant side of the equation?
13. How many molecules are present on the product side of the equation?
Answer: 10. The reactant in Reaction B is [tex]H_{2}O_{2}[/tex].
11. The products in Reaction B are [tex]H_{2}O[/tex] and [tex]O_{2}[/tex].
12. There are 2 molecules present on the reactant side of the equation.
13. There are 3 molecules present on the product side of the equation.
Explanation:
The given reaction equation is as follows.
[tex]Reaction B: 2H_{2}O_{2}(aq) \rightarrow 2H_{2}O(l) + O_{2}(g)[/tex]
Reactants are the species present on the left side of a chemical equation.
Products are the species present on the right side of a chemical equation.
Therefore, the reactant in Reaction B is [tex]H_{2}O_{2}[/tex]. As 2 is coefficient of [tex]H_{2}O_{2}[/tex] so, 2 molecules are present on the reactant side of the equation.
The the products in Reaction B are [tex]H_{2}O[/tex] and [tex]O_{2}[/tex]. The coefficient of [tex]H_{2}O[/tex] is 2 and coefficient of [tex]O_{2}[/tex] is 1. Hence, there are total (2 + 1) equals to 3 molecules present on the product side of the equation.
Thus, we can conclude that:
The reactant in Reaction B is [tex]H_{2}O_{2}[/tex].
The products in Reaction B are [tex]H_{2}O[/tex] and [tex]O_{2}[/tex].
There are 2 molecules present on the reactant side of the equation.
There are 3 molecules present on the product side of the equation.
Balance :FeCl3 + __Ca(OH)2 → ___ Fe(OH)3 + __ CaCl2
What molar concentration (molarity) results when 1.28 L of 14.38 M HCl is diluted to 9.45 L of water?
Answer:
1.95 M
Explanation:
Molarity is a measure of the molar concentration of a substance (solution). In relation to the volume, it is calculated using the formula as follows;
C1V1 = C2V2
Where;
C1 = initial concentration (M)
C2 = final concentration (M)
V1 = initial volume (L)
V2 = final volume (L)
According to the provided information in this question;
C1 = 14.38 M
C2 = ?
V1 = 1.28 L
V2 = 9.45 L
Using C1V1 = C2V2
14.38 × 1.28 = C2 × 9.45
18.4064 = 9.45 C2
C2 = 18.4064 ÷ 9.45
C2= 1.95 M
3. How much heat (in joules) is needed to raise the temperature of 355 g of ethanol I
(c = 2.4 J/gºC) by 63°C?
q=mcAT
Answer:
53676 J
Explanation:
m = 355 g
c = 2.4 J/gºC
ΔT = 63°C
q = mcΔT
= (355)(2.4)(63)
= 53676 J
The amount of heat is 53676J to raise the temperature of 355 g of ethanol.
What is temperature?Temperature is a measurement of the amount of energy of the atoms in a system or a physical quantity that expresses hot and cold.
What is heat?Heat is energy that is transmitted through one body to some other due to a temperature differential. When two bodies of different temperatures come together, energy can be transferred (heat flows) from the hotter to the colder.
It can be determined by the formula:
q =mCΔT.
where, q is heat, m is mass , C is and T is temperature.
Calculation of heat is shown below:
It is given that, mass of ethanol = 355 g, c = [tex]2.4 J/g^{0}[/tex] C, ΔT. = [tex]63^{0} C[/tex]
Now, put the values of given data in heat formula:
q =mCΔT
= 355×2.4×63
=53676J.
Therefore, the amount of heat will be 53676J to raise the temperature of 355 g of ethanol
To know more about heat and temperature click here.
https://brainly.com/question/1429452.
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DIRECTIONS: Classify the following unbalanced chemical equations according to the six types
of chemical reactions. Write your answer on the space provided for each number.
1. NaOH + KNO3 NaNO3 + KOH
2. CH4 + O2 CO2 + 2H2O
3. Fe + NaBr FeBr3 + Na
4. CaSO4 + Mg(OH)2 Ca(OH)2 + MgSO4
5. NH4OH + HBr H2O + NH4Br
6. P4 + O2 P2O4
7. NaNO3 NaNO2 + O2
8. C18H18 + O2 CO2 + H2O
9. H2SO4 + NaOH NaSO4 +H2O
10.NiSO4 + Li3PO4 Ni3(PO4)2 + Li2SO4
All of the following are empirical formulas except:
C2H3O2
C6H6
CHO2
CH2O
What does temperature surround when the kinetic energy is moving fast ?
When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases.
In chemistry, we define the temperature of a substance as the average kinetic energy of all the atoms or molecules of that substance. Not all of the particles of a substance have the same kinetic energy. At any given time, the kinetic energy of the particles can be represented by a distribution.
In physics, temperature is defined as the average kinetic energy of the particles in an object. ... When particles move more quickly, temperature is higher and an object feels warmer. When particles move more slowly, temperature is lower and an object feels cooler.
乁(ᵔヮᵔ)ㄏ
Many electrical power plants use fossil fuels, a non-renewable resource to produce electricity?
A:Solar energy can be used to push energy along power lines
B:Wind energy can be used to cool overheated electrical lines
C:Moving water can be used to carry electricity to homes and businesses
D:Biomass can be used to generate heat that can be converted into electricity
Answer:
Explanation:
Thermal Power Plants generate electricity by converting heat into electricity, essentially by burning a fuel. ... A coal power plant works in much the same way, but instead of a nuclear reactor heating water to make steam, the heat from the burning coal powers a steam turbine
Answer:
Solar energy can be used to push energy along power lines.
Explanation:
Im Might be wrong, might have to fact check it but im taking the test now so :)
Which intermolecular attractive force results in the highest vapor pressure?
es )
A)
hydrogen bonding
B)
interionic force
dipole-dipole atraction
D)
London dispersion force
Answer:
D)
London dispersion force
Explanation:
The relatively weak dipole-dipole forces and London dispersion forces between molecules results in a much higher vapor pressure compared to ethyl alcohol.
How many grams of sodium chloride could be produced from 41.3 L of chlorine gas?
Answer:
The grams of sodium chloride that will be made is 292.5 g. calculation. 2Na + Cl₂ → 2NaCl. step 1: calculate the moles of Na. moles = mass/molar mass. From periodic table the molar mass of Na = 23 g/mol. moles = 115 g/23 g / mol = 5 moles. Step 2 : use the mole ratio to determine the moles of NaCl. Na:NaCl is 2:2 = 1:1 therefore the moles of NaCl is also = 5 moles.
Explanation:
We know sodium is a very active metal and chlorine is also a very reactive non-metal. Usually, metals like to eliminate electrons and non-metals such as halogens like to accept electrons. Sodium readily eliminate its last shell electrons become Na+ cation and chlorine accepts that electron to form Cl-anion.
Helpppp ASAP DON’T GUESS
Which of the following best describe an atomic number? An element identity is defined by its atomic number this means it represents the number of
A) electrons in the element
B) protons plus neutrons in its nucleus
C)neutrons in its nucleus
D)protons in its nucleus
Answer:
d) protons in its nucleus
Explanation:
-
Which best describes a chain reaction associated with a nuclear reaction A Neutrons released during a fusion reaction cause other to fuse B Neutrons released during a fission reaction cause other nucles to split C Helium nuclei released during a fission reaction cause other nuclei to split D Helium nuclei released during a fusion reaction cause other nuclei to fuse
Answer:
Neutrons released during a fission reaction cause other nuclei to split
Answer:
B: Neutrons released during a fission reaction cause other nuclei to split
Explanation:
If you wanted to prepare a 15.58 L of a 6.25 M solution, what volume of a 14.73 M solution must you start with?
Answer:
6.61 L
Explanation:
M1 = 6.25
V1 = 15.58
M2 = 14.73
M1V1 = M2V2
(6.25)(15.58) = (14.73)V2
V2 = 6.61 L
In a closed chamber, 58 grams of propane gas and 220 grams of oxygen gas are sparked to initiate the combustion reaction shown below. C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(l) What is the limiting reagent in this reaction?
propane
oxygen
water
carbon dioxide
Answer:
C) Propane
Explanation:
It's literally all I know
is sodium potassium nitrate exo or endo?
endothermic
Explanation:
I believe it's an endothermic but I'm not all too sure
Answer:
Pottasium nitrate is highly exothermic!However the dissolution of sodium nitrate in water is endothermic. Heat is absorbed during process.
Proponer una propuesta de acción contra la degradación del suelo basándose en tres tipos de argumentos de fuentes confiables
Answer:
Cobertura vegetal, mantillo y piedra triturada.
Explicación:
Para evitar la degradación del suelo, debemos plantar una cubierta vegetal perenne que proteja el suelo de la erosión del viento y el agua sujetándolo firmemente con sus raíces. El mantillo también se usa para prevenir la erosión del suelo. En aquellas zonas donde la cobertura vegetal no es posible, tenemos que utilizar piedras trituradas para cubrir el suelo con el fin de evitar el contacto directo con el viento. Entonces, estas acciones pueden prevenir la degradación del suelo y mantener el suelo en su estado original.
CH3OH is an example of a ____ hydrocarbon.
a.
complete
b.
substituted
c.
functional
d.
synthetic
Answer:
functional
Explanation:
c is correct