The type of reaction represented by the equation is replacement reaction.
Definition of replacement reactionA replacement reaction also known as displacement reaction is a reaction in which the ions of the reactant exchange to produce a new product. For example
AB + CD —> AD + CB
In the above reaction, we can see that D replaces B in the product which shows that the reaction is a replacement reaction.
How to determine the type of reactionNaCl + AgNO₃ → NaNO₃ + AgCl
In the above reaction, we can see that Cl replaces NO₃ in the product. This simply indicates that the reaction is a replacement reaction.
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please help does anybody know how to calculate the molar mass of a compound?
What causes objects to speed up, slow down, and change directions?
Which model is based on Bohr's quantum model?
Model A
Model B
Model C
Model D
Answer:
Model D
Explanation:
Bohr's Model has a planetary look. Where the electrons are in an orbit.
Answer:
The answer is model D
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Explanation:
Aluminium and Chlorine.
Al and Cl2.
What classifies something as a chemical reaction?
Answer:
changes that change the matter of the object and made it into another object
Explanation:
2 Aluminum oxidizes according to the following equation: 4A1 + 302 → 2Al2O,
[a] Powdered Al (0.048 myl) is placed into a container containing 0.030 mol O.. What is the limiting reactant?
[b] How many moles of the excess reoctant remaine?
Answer:
Identify the limiting reactant (limiting reagent) in a given chemical reaction.
Calculate how much product will be produced from the limiting reactant.
Calculate how much reactant(s) remains when the reaction is complete.
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If 175.0g of nitrogen is reacted with 250.0g of hydrogen, what is the theoretical yield of the reaction? What is the excess reactant? What is the limiting reactant? Show your work.
Answer:
Nitrogen gas is the limiting reactant
Hydrogen gas is the excess reactant
The theoretical yield is 425 g of ammonia
Explanation:
Equation of reaction: 3H2 + N2 ---> 2NH3
From the equation of reaction, 3 moles of hydrogen gas reacts with 1 mole of nitrogen to produce 2 moles of ammonia gas.
Molar mass of hydrogen gas = 2.0 g
Molar mass of nitrogen gas = 14.0 g
Molar mass of ammonia gas = 17.0 g
Number of moles of hydrogen gas in 250 g = 250/2 = 125 moles
Number of moles of nitrogen gas in 175 g = 175/14 = 12.5 moles
Mole ratio of Hydrogen to Oxygen = 125/12.5 = 10 : 1
Therefore, nitrogen gas is the limiting reactant.
Hydrogen gas is the excess reactant
14 g of nitrogen gas produces 17 × 2 g of ammonia = 34 g of ammonia
175 g will produce (34 × 175)/14 = 425 g of ammonia
Therefore the theoretical yield is 425 g of ammonia
5. Which elements are examples of nonmetals?
a) Sodium, potassium, and calcium
b) Silicon, germanium, and astatine
c) Barium, iron, cobalt
d) Argon, sulfur, oxygen
Answer:
B
Explanation:
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What is the wavelength of a wave having a frequency of 3.23 x 1014 sl?
The wavelength=9.29 x 10⁵ m
Further explanationRadiation energy is absorbed by photons
The energy in one photon can be formulated as
[tex]\large{\boxed{\bold{E\:=\:h\:.\:f}}}[/tex]
Where
h = Planck's constant (6,626.10⁻³⁴ Js)
f = Frequency of electromagnetic waves
f = c / λ
c = speed of light
= 3.10⁸
λ = wavelength
a frequency of 3.23 x 10¹⁴/s
the wavelength :
[tex]\tt \lambda=\dfrac{c}{f}=\dfrac{3\times 10^8}{3.23\times 10^{14}}=9.29\times 10^5~m[/tex]
Identify three reasons why
plate tectonics can be described as the surface expression of the
cycling of matter due to the flow of energy via mantle convection.
The three reasons why plate tectonics can be described as the surface expression of mantle convection are;
1) It involves the outer shell which is the surface of the earth.
2) It involves movement of of rocks at the the surface which can be likened to mantle convection.
3) It involves transfer of heat as in mantle convection but at the surface.
Mantle convection is simply defined as transport of the solid bulk of the earths' interior known as mantle by the transfer of heat from the earth's white hot core which is its' deep interior to the surface known as lithosphere which causes the motion of Earth's mantle to solidly creep.Now, plate tectonics are defined as the theory that explains the past and present movements of the rocks situated at the surface of the earth which aids in understanding the geological history of the rocks. This means it is basically the outer shell of the earth that is being divided into large plates that move smoothly over the earths' mantle but above the earths' core.Read more at; https://brainly.com/question/19990159
What is a nonpolar covalent bond?
Answer: A covalent bond that has an equal sharing of electrons (part (a) of Figure 4.4. 1) is called a nonpolar covalent bond. Figure 4.4. 1 Polar versus Nonpolar Covalent Bonds. (a) The electrons in the covalent bond are equally shared by both hydrogen atoms.
Explanation:
what is the meaning of seasons ?
science lab questions:
When the enzyme lactase breaks down lactose, the sugar ______________ is produced.
The _______________________ of an enzyme has a big impact on how fast or slow the enzyme reaction occurs.
Two environmental conditions that affect enzyme reaction rates are ____________________ and ____________.
The faster lactase works, the more ____________________ will be produced as lactose is broken down.
Answer:
glucose and galactose
concentration of the enzyme
temperature and pH
glucose and galactose
Explanation:
Enzymes are biological catalysts. They catalyze various biochemical reactions in the body. Enzymes are proteins.
The enzyme responsible for the breakdown of lactose is lactase. This enzyme catalyzes the breakdown of lactose to glucose and galactose. Galactose is about 65% as sweet as sucrose.
The rate of enzyme reaction is influenced by the concentration of the enzyme. As the concentration of the enzyme is increased, the velocity of the reaction proportionately increases.
Temperature and pH are important environmental factors that affect the rate of enzyme catalyzed reaction because they influence the activity of the enzyme and may even denature the enzyme.
What are gases that are molecules
Answer:
there are elemental molecules, made from one type of atom (pure), example: oxygen and there are compound molecules, made from more then one type of atom, for example carbon dioxide
When an oxygen-19 nucleus undergoes beta decay, the nucleus formed is
that of
oxygen-18.
O nitrogen-18.
fluorine-19.
O carbon-14.
An inherited characteristic of an organism is called a ___________________.
Answer:
fitness. the ability of an organism to survive and reproduce in its environment. adaptation. the inherited characteristic that increases an organism's chance of survival.
An inherited characteristic of an organism is called a heredity.
What do you mean by heredity ?The term heredity refers to the genetic heritage passed down by our biological parents. It is the transmission of traits from one generation to another generation. These traits can be physical, such as eye colour, blood type or a disease, or behavioral.
Heredity is also called biological inheritance, is the exiting of of traits from parents to their offspring either through asexual reproduction or sexual reproduction.
Heredity is a process in which organisms develop characteristics from their parents. These characteristics are called traits. Inheritance is the transmission of information from one generation of individuals to the next.
Thus, An inherited characteristic of an organism is called a heredity.
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The volume of water in a graduated cylinder was increased from 52.0 mL to 75.5 mL when a piece of irregular metal was placed in the water. If the piece of metal has a mass of 265.6 g, what is the density of the metal?
Answer:
11.30 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
volume = final volume of water - initial volume of water
volume = 75.5 - 52 = 23.5
From the question we have
[tex]density = \frac{265.6}{23.5} \\ = 11.302127...[/tex]
We have the final answer as
11.30 g/mLHope this helps you
Answer:
Approximately 11.3 g/mL
Explanation:
The formula for density is mass divided by density. In this problem, the mass is already given: 265.6 grams. The density is the part with the milliliters. 75.5 mL - 52.0 mL is 23.5 mL.
After plugging these numbers into the formula, you get 265.6 g/23.5 mL. After divided those numbers, you get 11.30212..... g/mL, which rounds to 11.30 g/mL.
I hope this helps!
what would be the theoretical yield of 2SO2 + O2 + 2H2O --> 2H2SO4
Answer:
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Explanation:
a speed-time graph which the displayed data forms a straight line is a example of?
Answer:
constant speed or a horizontal line is an rest
Explanation:
Genesis lays an object on the table in a well-lighted room the object absorbs all visible light waves what color object does genesis see?
Answer:
The object Genesis sees is black.
Explanation:
The color an object reflects represents what the object's color is. For example, if a block reflects blue light, then only blue light is sent to our eyes, and hence we see the block as blue.
If an object absorbs all visible light waves, then, that means there's no visible light reflected, and we cannot see any color the object has. Hence, it is black in our eyes.
Hope this helped!
(a) A mixture of milk and water can be separated by filtration.
and by which method
Answer:
Distillation
Explanation:
Distillation is the process of separating the components of a liquid by using the method of selective boiling and condensation.
Since the components of the liquid have different boiling points, they would evaporate at different temperatures, thus causing the separation to occur.
So, distillation can be used to separate a mixture of milk and water.
How are crystals made?
Explanation:
Crystals often form in nature when liquids cool and start to harden. Certain molecules in the liquid gather together as they attempt to become stable. They do this in a uniform and repeating pattern that forms the crystal. In nature, crystals can form when liquid rock, called magma, cools.
Answer: Crystals often form in nature when liquids cool and start to harden. Certain molecules in the liquid gather together as they attempt to become stable. They do this in a uniform and repeating pattern that forms the crystal. In nature, crystals can form when liquid rock, called magma, cools.
Explanation: Can i have BrainLiest
23) Assuming STP, how many moles are in 30 L SO2?
Answer:
1.34 moles SO₂(g)
Explanation:
At STP 1 mole of any gas occupies 22.4 Liters. So, for 30 Liters ...
moles SO₂(g) = 30L/22.4L·mol⁻¹ = 1.34 moles SO₂(g)
2. After class, Claudia had a snack. Then, she drove home and settled down to relax, surrounded by candlelight. What types of combustion do Claudia’s various activities represent?
Answer:
The types of combustion are;
1) Claudia eating snack is slow combustion
2) Claudia driving home involves explosive combustion
3) The lit candle is a form of rapid combustion
Explanation:
Combustion is the rapid exothermic chemical reaction between a fuel and an oxygen source to produce oxidized compounds formed from the elements in the compounds present in the fuel, which when combined together in a mixture are known as smoke
The types of combustion are;
1) Digestion of the snack is the slow combustion of glucose
2) Combustion in the engine of the car is a form of explosive combustion
3) The burning of the candle is a form of rapid combustion
Which of the following is true for a cell that has DNA present inside a nucleus? (5 points)
It must be a part of the oldest known fossils.
It must be a part of a eukaryote.
It must be a part of a bacterium.
It has a nucleoid.
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Answer:
It must be a part of a eukaryote
Explanation:
Eukaryotic cells are larger than prokaryotic cells and have a “true” nucleus, membrane-bound organelles, and rod-shaped chromosomes. The nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes.
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Samantha and Claire determined the mass and volume of a piece of metal to be 24.16 g and 3.22 mL respectively. Determine the density of the metal.
Answer:
7.5031055900621
Explanation:
D= M/V
Which is demonstrated by the steps shown in the flow chart?
How many molecules are in 45.0 grams of NaCl
Answer:
3.5*10^23
Explanation:
divide 45/molar mass
then multiple the answer to Avogadro's number
Answer:
10/13 × 6.022×10²³
Explanation:
ans: given mass / molar mass = number of moles
(M ).
number of moles(M) = number of molecules / avagadro number ...
=molar mass of NaCl = 58.5 gram
45/58.5 × 6.022 ×10²³
= 10/13 × 6.022 × 10²³ is the required number
A student has 0.75 L of a 5.0 M solution and dilutes it to make 3.5 liters. What’s the molarity of the diluted solution?
1.1 M
2.0 M
1.6 M
.93 M
The molarity of the diluted solution : 1.1 M
Further explanationDilution is the process of adding solvent to get a more dilute solution.
The moles(n) before and after dilution are the same.
Can be formulated :
[tex]\tt n_1=n_2\\\\M_1.V_1=M_2.V_2[/tex]
M₁ = Molarity of the solution before dilution
V₁ = volume of the solution before dilution
M₂ = Molarity of the solution after dilution
V₂ = Molarity volume of the solution after dilution
M₁=5
V₁=0.75
V₂=3.5
[tex]\tt M_2=\dfrac{M_1.V_1}{V_2}\\\\M_2=\dfrac{5\times 0.75}{3.5}\\\\M_2=1.07\approx 1.1[/tex]
When 33 g of CaO and 10 g of H2O react, how many grams of calcium hydroxide would you expect to be produced* Explain your answer.
Answer:
Calculate the number of moles of oxygen required to react exactly with 4.30 ... How many moles of NH3 can be made from 2.00 moles of Nz if you have excess Hz? ... 10. How many grams of water are made when 3.00 moles of butanol is combusted? ... If 50.0 g of calcium oxide were produced, how many grams of calcium ...
Answer:
41.44 g
Explanation:
First of all, we must put down the equation of the reaction;
[tex]CaO + H2O ----->Ca(OH)2[/tex]
Number of moles of CaO = 33g/56 g/mol = 0.59 moles
Number of moles of H20 = 10g/18 g/mol = 0.56 moles
Since the reaction is in 1:1 mole ration, H2O is the limiting reactant
Hence;
mass of Ca(OH)2 produced = 0.56 moles * 74 g/mol = 41.44 g