Type of reaction : The decomposition reaction
Further explanationGiven
Reaction
Al₂(CO₃)₃ → Al₂O₃ + 3CO₂
Required
Type of reaction
Solution
The decomposition reaction in a chemical reaction shows the decomposition reaction of a compound into its constituent elements or compounds
So 1 compound breaks down into 2 or more compounds
The general formula :
AB ⇒ A + B
In your own words, define the word "potential"
Answer:
1 : the chance or possibility that something will develop and become real There is a potential for injury. 2 : an ability or quality that can lead to success or excellence : promise She has great potential as a musician.
Explanation:
Answer:
potential: possessing or demonstrating the ability to evolve into or become something in the future.
OAmalOHopeO
Which best explains why fungi are often called natural recyclers?
They provide a continuous food resource for many other organisms.
They break down rotting materials and return nutrients to the soil.
They take in large amounts of carbon dioxide, helping to clean the air.
O They are found in nature and have many different practical uses,
They break down rotting materials and return nutrients to the soil.
( They don't do photosynthesis since they are much different from plants)
Answer:
B
Explanation:
How many moles is 0.025 g of NaCO3? (Show Your Work)
mol of Na2CO3 = 2.36 x 10⁻⁴
Further explanationGiven
Mass : 0.025 g of Na2CO3
Required
moles
Solution
The mole is the number of particles contained in a substance
1 mol = 6.02.10²³
Moles can also be determined from the amount of substance mass and its molar mass :
mol = mass : molar mass
mass = mol x molar mass
Input the value :
mol = mass : MW Na2CO3
mol = 0.025 g : 106 g/mol
mol = 2.36 x 10⁻⁴
I need help with this one question
Answer:
colder
Explanation:
what would a bond between potassium and chlorine be
Answer:Potassium react with elemental chlorine, an electron transfers from a potassium atom to a chlorine atom, forming potassium ion and chloride ion. ... As the bond formation between ions, the bond will be ionic. This is because, this process of transfer of electrons from one atom (K) to another atom (Cl).
Explanation:
How many molecules are there in 5.9 moles of NaCl?
The number of molecules= 3.55 x 10²⁴
Further explanationGiven
5.9 moles of NaCl
Required
The number of molecules
Solution
The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
So for 5.9 moles :
= 5.9 x 6.02 x 10²³
= 3.55 x 10²⁴
If you have 40.0 g HCl and 40.0 g NaHCO3, do you have the same number of moles of each?
They both have a different number of moles
Further explanationGiven
40 g HCl
40 g NaHCO3
Required
moles
Solution
The mole is the number of particles contained in a substance
1 mol = 6.02.10²³
Moles can also be determined from the amount of substance mass and its molar mass
n = mass : molar mass
So the moles of a compound are affected by its molar mass (inversely proportional)
The larger the molar mass (of the same mass), the smaller the moles
molar mass HCl = 58.5 g/mol
molar mass NaHCO3 = 84 g/mol
mol HCl :
= 40 : 58.5
= 0.684
mol NaHCO# :
= 40 : 84
= 0.476
True or false: Oceans have no effect on the temperature on Earth’s land???
Answer:
false
Explanation:
In the following chemical equation, which are the reactants?
2HF + Mgo MgF2 + 2H20
>
A. 2HF + MgF2
B. 2H+ + Mgo
C. MgF2 + H20
D. MgO + H20
A
B
D
If you need 2.5 moles of Rb2Cr7, how many grams do you need?
Answer:
0
Explanation:
There are 122.6L of argon gas in a tank. How many moles is this?
A)
2.76mols
B)
3.25mols
09
1.56mols
D)
5.5mols
There are 5.5 moles of Argon gas in tank
Further explanationGiven
122.6 liters of Argon gas
Required
The number of moles
Solution
Assume at STP
Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters / mol.
So for 122.6 L :
= 122.6 L : 22.4 L
= 5.47 moles ≈ 5.5 moles
how much energy was added to the ice between point a and point d?
Answer: 26kj
Explanation:
Just took the test and got it right :D
how many vitamin c tablets is 250mg? (i’ll give brainliest)
Which use of biotechnology most benefits North Carolina agriculture? *
O Producing human vaccines
Producing disease resistant crops
O Producing new medicines from bacteria
O Producing enzymes to eliminate pollutants
Residents of North Carolina presently bum 5 billion gallons of imported
Answer:
Producing disease-resistant crops
Explanation:
B. is the Right Answer Hope this helps!
Among all the given options, the correct option is option B. Producing new medicines from bacteria is the most benefits for North Carolina agriculture.
What is biotechnology ?The human genome's sequencing has sparked a biotechnology revolution that will have an impact on every area of our lives, including our environment, diet, and methods of sickness detection and treatment.
Already, biotechnology has raised the standard of living for us. The scope as well as volume of biotechnology's effects will increase in the coming decade as the rate of technological advancements increases.
The use of molecular biology innovations for applications in animal and human health, agriculture, the environment, and speciality biochemical manufacture is the widest definition of biotechnology. Producing new medicines from bacteria is the most benefits for North Carolina agriculture.
Therefore, the correct option is option B.
To learn more about biotechnology , here:
https://brainly.com/question/16536830
#SPJ6
What are 3 similarities between physical changes and chemical changes
Answer:
Heat change is involved in both process.
II. Both result in change of state of matter
Explanation:
Physical change substance involves the alteration of physical state of a substance. Chemical change substance involves the alteration of the chemical composition of the substance
Which graph above shows an object’s acceleration?
a or b
Why did you choose that graph in question above (explain why)
Answer:
A i just did it. And yes i do go to k12
Explanation:
A chip is burned beneath an aluminum container holding 28.7 g of water causing the temperature of the water to increase from 11.3 °C to 33.2 °C. How many joules of heat were absorbed by the water? Water’s specific heat is 4.18 J/gºC
Answer:
Q = 2627.25 J
Explanation:
Given that,
The mass of water, m = 28.7 g
The temperature of the water to increase from 11.3 °C to 33.2 °C
The specific heat of water is 4.18 J/gºC
The heat absorbed by the water is given by :
[tex]Q=mc\Delta T\\\\Q=28.7 \times 4.18 \times (33.2-11.3)\\\\Q=2627.25\ J[/tex]
So, 2627.25 J of heat is absorbed by the water.
How many moles of Fe2O3 were used to produce with 11.5 moles of CO2 ?
Moles of Fe2O3 used : 3.83
Further explanationGiven
11.5 moles of CO2
Required
moles of Fe2O3
Solution
Reaction
Fe2O3 + 3CO ⇒2Fe + 3CO2
The reaction coefficient shows the mole ratio of the reacting compound (reactants or products)
From the equation, mol ratio of Fe2O3 : CO2 = 1 : 3, so mol Fe2O3 :
= 1/3 x moles CO2
= 1/3 x 11.5
= 3.83 moles
Chemical properties describe matter based on its ability to change into___
A. A new substance
B. The same thing
C. Water
D. A powder
Answer:
A. A new substance
Explanation:
sorry if its wrong if its right your welcome <3
i’ll give Brainliest please answer also i know this isn’t chemistry but brainly doesn’t have science
the answer would be iron. divide mass by volume to get density.
Answer:
B. Iron
Explanation:
Correct
If ice is added to a large fish tank and a small fish bowl, both at the same termperature, the large fish tank's water will cool faster because there is more water.
TRUE OR FALSE
Answer: False
Explanation:
When a object is touching a surface, it mostly likely will change the temperature it's on, depending on how it is. Since they both have different temperatures and cooling down at the same particularity rates, it is highly false that this would happen. What WOULD would the bowl cool faster THAN the water, then the ice will transform into water.
Hope this helps and make sure to thank me!
Which is an example of kinetic friction?
friction between a car’s windshield and the air as you drive into the wind
friction between a sticky note and the page of a book as it marks your place
friction between your shoes and the ground when you stand still
friction between your skin and a pencil as it rests in your palm
Answer: friction between a car's windshield and the air as you drive into the wind.
Explanation: Hope this helps :)
how much salt will be obtained, neutralizing 11.2 grams. potassium hydroxide and hydrochloric acid? In the meantime, there is no need to worry about it. ”
Answer:
9.0217g
Explanation:
the chemical formula must be after balancingknown as 92.55 (mass) of KOH+HCL will produce 74.55 (mass) of salt, KCLhence, 11.2g of KOH and HCL will produce (x)g of saltAn element whose particles are atoms
Answer:
a chemical element
Explanation:
A chemical element is a substance that contains only one type of atom
Given 5 Moles of H20. how many moles of O, are produced. Use the following Equation
2H2+O2->2H2O
Moles O2 required : 2.5
Further explanationGiven
Reaction
2H2+O2->2H2O
Required
Moles of O2
Solution
The reaction coefficient in a chemical equation shows the mole ratio of the reacting compounds (reactants or products)
From the equation, mol ratio of H2O : O2 = 2 : 1, so moles O2 :
= 1/2 x mol H2O
= 1/2 x 5 moles
= 2.5 moles
What is salinity? (giving you 30 points if you answer it and I give brainlist)
Question 1 options:
a liquid mixture in which the smaller component (solute) is distributed evenly through the major component (solvent)
The concentration of dissolved salt in a liquid
to become incorporated with a liquid in forming a solution
the total amount of salt dissolved in the sea
Answer:
D
Explanation:
Salinity is the saltiness or amount of salt dissolved in a body of water
Answer:
its b trust me i got it right
Explanation:
PLZ help, I'm really behind in school! I will mark brainliest for correct answers!
If the distance between two objects is reduced by a factor of 5, how will Fg be affected?
A. F g decreases to 1/25
B. F g increases by 5 times
C. F g decreases to 1/5
D. F g increases by 25 times
Answer:
Gravitational force is given by:
F=G×
d
2
m×M
Distance between two masses is increased s.t. new distance is D= 5 d
New gravitational force F
1
=F
Let on of the mass is changed to m
1
so as to maintain the same gravitational force.
Answer:
D
Explanation:
F g increases by 25 times
For the balanced equation shown below, if the reaction theoretically
should produce 7.99g CaO but experimentally produces 6.81 grams of
CaO, what is the percent yield?
CaCO3---->CaO+CO2
85.23%
0 14.77%
54.41%
O 117.33%
Answer:
Percent yield = 85.23%
Explanation:
Given data:
Theoretical yield = 7.99 g
Actual yield = 6.81 g
Percent yield of CaO = ?
Solution:
Formula:
Percent yield = ( actual yield / theoretical yield ) × 100
by putting values,
Percent yield = (6.81 g/ 7.99 g) × 100
Percent yield = 0.8523× 100
Percent yield = 85.23%
Which statements accurately describe volume? Check all that apply. Volume is a physical property of an object. Volume is measured using a balance. The volume of a solid changes with the shape of the container. One unit of volume is the milliliter. Liquids and solids have constant volumes
Answer:
Liquids and solids have constant volumes
Explanation:
I believe this is the most correct statement
Answer:
Volume is a physical property of an object.
One unit of volume is the milliliter.
Liquids and solids have constant volumes.
Hope this helps <3
Explanation:
PLs help mweee Ill mark brainliest
the 3rd one is the answer