Answer:
visible light spectrum
Explanation:
What is the formula for potassium nitrate? (3 points) a KN b K3N c KNO2 d KNO3
Answer:
KNO3 (Potassium Nitrate)
Explanation:
I just know.
How many silver atoms are in 1 mole of silver?
Answer:
Explanation:
Silver has a molar mass of 107.87 g⋅mol−1 . What does this mean? It means that if I have such a mass of silver, there are Avogadro's number, NA=6.022×1023 , individual silver atoms
The number of silver atoms in 1 mole of silver. Avogadro's constant is
defined as the number of units in one mole of a substance.
Avogadro's constant is denoted by the following below:
NA = 6.022×10²³ mol⁻¹.
In the question, we were asked for the number of silver atoms in 1 mole of a
substance which is equivalent to the Avogadro's constant.
This means the number of atoms in 1 mole of silver = 6.022×10²³ mol⁻¹.
Read more on https://brainly.com/question/15989275
GUYS QUICK HELP!
is a soda pop bottle a invention or an innovation?
Answer:
Invention
Explanation:
!Hope This Helps!
was the molar mass of ch202
Answer:
48.018 g/mol
Explanation:
Answer:
The molar mass and molecular weight of CH2O2 is 46.025.
Explanation:
PLEASE HELP ITS PAST DUE IM GIVING BRAINLIEST
Answer:
it will option A . hope it helps
Answer:
options A
Explanation:
the balloon filled up because of the formation of gas bubbles
How many moles in 58 grams of CO3 ?
Answer:
60.0089
Explanation:
What's the fifth planet from the sun?
Answer:
jupiter
Explanation:
mercury, venus, earth, mars, jupiter, saturn, uranus, neptune,
2 X(9) + Y (9) = 2XY (9)
A reversible reaction is represented by the equation above. The amounts of reactants and products at time 1 are shown in the particle diagram on the left. The particle diagram on the right shows the
amounts of reactants and products at time 2. Based on the diagrams, what can be inferred about the relative rates of the forward and reverse reactions between time 1 and time 2?
a. nothing can be inferred because the total number of X and Y atoms is the same
each diagram
b. Nothing can be inferred because the temperature of the system may have been changed
c. The rate of the reverse reaction is greater than the rate of the forward reaction
d. The rate of the forward reaction is greater than the rate of the reverse reaction.
Answer:
The answer is D. The rate of the forward reaction is greater than the rate of the reverse reaction.
Explanation:
The forward reaction rate was greater than the reverse reaction rate because more product is present at time 2. This is the answer from ap classroom.
The given reaction has been inferred the increased rate of forward reaction than reverse reaction. Thus, option D is correct.
The chemical reaction has been given by the combination of reactants for the formation of product. The reactants combine in the fixed proportion to form the product.
The rate of reaction has been defined as the rate of formation of product or the disappearance of reactants.
Rate of reactionThe forward reaction has been given as the rate of formation of product. The reverse reaction has been given as the rate of dissociation of product.
In the given condition, the number of reactant at time 1 are more than the reactant at time 2. This states that there has been increased formation of the product at time 2.
Thus, the given reaction has been inferred the increased rate of forward reaction than reverse reaction. Thus, option D is correct.
Learn more about reverse reaction, here:
https://brainly.com/question/8592296
is CuO a covalent or ionic bond?
The electronegativity is less than 1.7, which would make it a covalent bond. But I am still not sure..
Answer:
it would be ionic
copper forms a cation and oxygen forms an anion
those charges represent the e-s that are transferred during bonding
oxygen is -2 so will accept 2 e-s to achieve noble gas configuration
Explanation:
how many grams of NH3 are in 45.9
Can someone please help me with this, ill give you a heart, a five star rating, and the brainliest answer!
Answer:
A not
B yes
C yes
D yes
Explanation:
A 2C 6H but 10O and 7O so no
B 3C 6O 2Fe on each side so yes
C 4H 1S 6O 2Na so yes
D 2Ag 2Cl 1Ca 2N 6O so yes
If you are given 4.38g of a metal and this is reacted with air to produce a metal oxide weighing 5.18g. What is the Metal?
Answer:
Magnesium
Explanation:
Magnesium reacts with air (oxygen) to form metal oxide.
Urgent please help!!!!
Identify and comment on a minimum of five of Canada's most important
natural resources.
Answer:
Uranium, Zinc, titanium, Gold, Copper , silver and more
Explanation:
Identify the type of reaction that will occur with these reactants:
Fe(NO3)3(aq)+CaSO4(aq)
- synthesis
- decomposition
- single replacement
- double replacement
Answer:
double replacement (Mutual exchange of ions)
Explanation:
GOOD LUCK FOR THE FUTURE! :)
Please help with this!!
Answer:
Limiting: Lab covers. Books produced: 75. Excess amounts: In explanation
Explanation:
Amount that can be produced with just lab covers: 75 books (150/2)
Amount that can be produced with just lined paper: 150 books (7500/50)
Amount that can be produced with graph paper: 120 (3000/25)
Amount that can be produced with staples: Approximately 83 (250/3)
As we can see, the lab covers are limiting as they can only produce 75 books. So, we can only make 75 books.
You will have 3,750 lined paper left over (or 75 books)
(150-75=75 , 75*50=3,750)
You will have 1,125 graph paper left over (or 45 books)
(120-75=45 , 75*25=1,875 , 3000-1875=1125)
And then you will have approximately 25 staples left over (or 8 books)
(83-75=8 , 8*3=225, 250-225=25)
(Hopefully this is correct, I apologize if I messed up)
what is mean by constituent assembly
Answer:
its a body or assembly of popular elected represenatives
Explanation:
which the purpose of this is to form a representative democracy
hope this helps
Ammonium chloride, ammonium sulfate and ammonium nitrate are used in fertilisers.
Ammonia reacts with nitric acid to make ammonium nitrate.
NH3 + HNO3 → NH4NO3
Calculate the mass of ammonia required to make 5.0 g of ammonium nitrate.
relative formula mass of NH3 = 17
relative formula mass of NH4NO3 = 80
Answer:
1.0625 g
Explanation:
Number of moles in 5g of NH4NO3 = 5.0g/80g/mol = 0.0625 moles
Again the balanced reaction equation is;
NH3 + HNO3 → NH4NO3
So,
1 mole of NH3 yields 1 mole of NH4NO3
x moles of NH3 yields 0.0625 moles of NH4NO3
x = 0.0625 moles of NH3
Mass of NH3 = number of moles * molar mass
Mass of NH3 = 0.0625 moles * 17g/mol
Mass of NH3 = 1.0625 g
9. Scientists are studying cellular respiration in a jungle ecosystem that has plants,
animals, and decomposers (which consume dead things). Which group or groups of
organisms in the jungle carry out cellular respiration?
plants
animals and decomposers
all organisms in the jungle
animals.
Answer:
all organisms in the jungle
Explanation:
Scientists are studying cellular respiration in a jungle ecosystem that has plants, animals and decomposers, so all organisms in the jungle carry out cellular respiration.
What is cellular respiration?Cellular respiration is a process in which organism use the oxygen molecule for the conversion of their food materials to get the chemical energy by the product of water and carbon dioxide.
This respiration process is done by all living organism like plants, animals, insects, bacteria, etc. to get energy for the other cellular functions. So, in the ecosystem of jungle plants, animals and decomposers all will perform cellular respiration.
Hence, option (c) is correct i.e. all organisms in the jungle.
To know more about cellular respiration, visit the below link:
https://brainly.com/question/25921566
1. What organisms keeps the ecosystem going but you can't see them with the naked eye?
Answer:
The answer is bacteria (microorganisms)
Explanation:
Bacteria can't be seen with the naked eye but it's part of a species that make up the biodiversity.
Whats the correct answer ?
Don’t mind my cats fur :)
Answer:
Potassium is an element, with the symbol K
Explanation:
An element is something that cannot be broken down any further, for example, calcium, its Ca.
A compound is when you bond two or more elements. Compounds can be broken down into its original elements, for example, H₂O, it contains two atoms of hydrogen and one atom of oxygen (both hydrogen and oxygen are elements).
Rocks created from the cooling of magma or lava are called
Group of answer choices
sedimentary
metamorphosis
igneous
metamorphic
Answer:
igneous rock
Explanation:
when magma or lava is erupted from earth crust (volcanic eruption) extrusive igneous rock is formed when the magma or lava cools down
True or False: Photosynthesis can happen anytime, regardless of the amount of reactants present or the presence of sunlight.
Answer:
This is false
Explanation:
Im in bio and we just learned this lol
How do scientists think?
Answer:
hmmm
Explanation:
about cguro sa planethope nka tulong
PLZ HELP ILL GIVE BRAINLIEST!!!!
Answer:
1. electrical conductor
2. orbit
3. potential energy
4. magnetic field
5. net force
6. B; repulsion
7. A; copper
8. B; there is no gravitational attraction between you and the cup, but Earth's gravity is stronger, so Earth's gravity pulls the cup down
9. A; the net force is acting in an upward direction
10. A; position 1
11. A; the gravitational force between two objects depends on their masses
12. C; the chemical potential energy of the spring is greatest at position 4
13. C; hand-held compass
14. C; a person skiing down a hill
15. A; the ions will repel each other
16. A; position A
17. three properties of magnets are attraction because they attract certain materials, repulsion because magnetic poles repel, and directive because a magnet that is freely suspended will always point in a north-south direction.
18. to increase the strength of an electromagnet you can either increase the strength current or increase the number of windings.
i hope this helps :)
Differentiate between molecule and mole.
Answer:
Explanation:
A molecule, for example of water, contains 2 hydrogen atoms and 1 oxygen atom chemically bonded together and is the smallest building block of the chemical water. ... A mole is a certain quantity of molecules, specifically 6.02 x 10^23.
Hope this helps!
……….CO + ………H2 --> C8H18 + ……… H2O
Answer:
8CO + 17H2 = C8H18 + 8H2O
8, 17, 1, 8
How many atoms are in 15.9 g of Ag?
Answer:
Number of silver atoms
=
0.0134
⋅
m
o
l
×
N
A
.
N
A
=
Avogadro's number
Explanation:
Silver has a molar mass of
107.87
g
⋅
m
o
l
−
1
.
What does this mean? It means that if I have such a mass of silver, there are Avogadro's number,
N
A
=
6.022
×
10
23
,
individual silver atoms.
So all I have to do is divide the mass by the molar mass, and multiply this number (a molar quantity!) by Avogadro's number.
So, moles of silver
=
1.45
⋅
g
107.87
⋅
g
⋅
m
o
l
−
1
=
0.0134
⋅
m
o
l
And
number of silver atoms
=
0.0134
⋅
m
o
l
×
6.022
×
10
23
⋅
silver atoms
m
o
l
−
1
=
?
?
silver atoms
Explanation:
You do an experiment in which you need 0.25 mole of tyrosine (C,H11 NO3).
How many grams must you weigh out?
A). 45.3 g
B). 90.5 g
C). 181 g
D). 272 g
Answer:
B.90.5 g
Explanation:
not 100%sure hehe
Answer:
45.3
Explanation:
I got it wrong on my test and this was the only correct option for me.
march 10
march 3
february 16
february 22
your answer will be March 3