The balanced equation
2ABC₃+D⇒D(BC₃)₂+2A
Further explanationGiven
ABC3+D-D(BC3)2+A
Required
Balanced equation
Solution
Give a coefficientaABC₃+bD⇒D(BC₃)₂+cA
Make an equationD, left=b, right=1⇒b=1
B, left=a, right=2⇒a=2
A, left=a, right=c⇒a=c⇒c=2
The equation becomes :
2ABC₃+D⇒D(BC₃)₂+2A
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
Α. Helium (He)
В. Beryllium (Be)
C. Phosphorus (P)
D. Sulfur (S)
Answer: d
Explanation:
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
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What is the acceleration at 5s?
Answer:
-10 divided by 5=-2m/s squared
Explanation:
Answer:
A body falls for 5s from rest. If the acceleration due to the gravity of earth ceases to act, The distance travels in the next 3s is.
Explanation:
hopeot help you
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:
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 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 saltWhat is the lowest energy level that contains d orbitals?
O A. 4
O B. 3
O C. 2
D. 1
Answer:
I believe it 3
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
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
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
which of these elements has the highest electronegativity
A) lithium
B) nitrogen
C) potassium
D) arsenic
E) beryllium
True or false: Oceans have no effect on the temperature on Earth’s land???
Answer:
false
Explanation:
If you need 2.5 moles of Rb2Cr7, how many grams do you need?
Answer:
0
Explanation:
LEVEL 2
Solve each problem and write
the matching letter on the
blank above the answer
S Iron (1) oxide
Lead (IV) oxide
I
Load (1) Oxide
U Iron (1) Oxide
H Iron (III) hydroxide
T
Iron (IV) oxide
R Iron (II) Oxide
G Lead (1) Oxide
O
Lead (II) hydroxide
N
Iron (1) hydroxide
A Lead (111) hydroxide
Pbo
Feo,
Fe(OH), Pb(OH), FOOH
Pb,
Fo,o
Pb(OH),
Foo
Pb(OH), Foo
FeOH
Pbо,
Answer:
PbO = lead oxide G
FeO2 Iron (iv) oxide T
Fe(OH)3 iron(iii) hydroxide H
Pb(OH)3 lead(iii) hydroxide A
FeOH iron(i) hydroxide N
Fe2O3 iron (iii) oxide S
Pb(OH)3 lead(iii) hydroxide A
FeO iron(ii) oxide R
Pb(OH)2 lead(ii) hydroxide O
Fe2O iron (i) oxide U
FeOH iron (i) hydroxide N
PbO2 lead(iv) oxide D
Explanation:
What two terms are used to describe the temperature at which solids and liquids of the same substance exist at the same time?
Answer:
The answer is melting and freezing point.
Explanation:
anybody know the answer to this ???
Answer:
Answer is C.
Explanation:
I hope it's helpful!
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
Which statement describes absolute and apparent brightness?
NOTES TO TAKE DOWN:
Apparent brightness is a human measurement, and it would change for each star if the measurement were taken from another location. The more precise counterpart of apparent brightness is called absolute brightness (or absolute magnitude) and is the measure of the luminosity of a star, but on a common scale.
ANSWER:
Absolute brightness is the actual amount of light produced by the star, whereas apparent brightness changes with distance from the observer.
PLs help mweee Ill mark brainliest
the 3rd one is the answer
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:
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.
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
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
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:
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:
Which of the following represents a neutralization reaction which hydrofluoric acid and sodium hydroxide(a base) react to produce sodium choride(a salt) and water? 
Explanation:
A neutralization reaction is a reaction that involves an acid and a base.
When an acid reacts with a base to produce salt and water only, the reaction is said to be a neutralization reaction.
Acid + Base → Salt + Water
Such reactions are classified as a double displacement reaction in which a non-ionizing product is formed
I need help with this one question
Answer:
colder
Explanation:
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:
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 :)