Answer: D. The compounds have different properties because they contain the same elements in different quantities.
Explanation:
Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass. It can be decomposed into simpler constituents using chemical reactions.
[tex]CO[/tex] contains carbon and oxygen in the ratio of 3: 4 by mass whereas [tex]CO_2[/tex] contains carbon and oxygen in the ratio of 3: 8 by mass.
The physical properties of two different compounds are different as they contain same elements but the elements are present in different ratios.
Which diagram shows a p orbital?
Answer:
Third Option
Explanation:
Different orbitals have different shapes. The shapes of the orbitals are given below;
s orbital - Spherical with the nucleus at the center. This matches the second option.
p orbital - It has an elongated like doughnut shape. This matches with the third option in the question.
d orbital - Four of the 5d orbitals are clover leaf shaped. This matches with the first option.
How many atoms are in 3C12H22O11
Air is a ________ mixture??
what is the formula name for Co3N2
Answer:
Cobaltous Nitride,I think so anyway.......
The formula name for [tex]Co_{3}N_{2}[/tex] is cobalt(II) nitride.
In the compound [tex]Co_{3}N_{2}[/tex], the Co represents the chemical symbol for cobalt, and the N represents the chemical symbol for nitrogen. The subscript numbers indicate the ratio of atoms present in the compound.
To name the compound, we determine the charge of the cobalt ion based on the ratio of cobalt and nitrogen atoms. In this case, since there are three cobalt atoms and two nitrogen atoms, each cobalt atom has a 2+ charge.
Therefore, the correct name for [tex]Co_{3}N_{2}[/tex] is cobalt(II) nitride. The Roman numeral II is used to indicate the cobalt ion's charge.
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GIVING THE BRAINLIEST
When hair sticks to your comb as it is being combed, this is a result of
a. charging by friction
b. charging by conduction
c. charging by induction
d. grounding
The correct answer is A. Charging by friction
Explanation
When someone rubs a comb with their hair when they are combing it and the hair sticks to the comb occurs a phenomenon called electrization, in which a neutral body becomes charged or loses an electrical charge (electrons). One way that electrization occurs is through the rubbing of two neutral bodies which causes one to be positively charged and the other negatively causing them to attract each other by magnetism. Therefore, the correct answer is A. Charging by friction
If the fuel had a mass of 2g,
how much heat energy does
each gram of fuel release?
Answer:
Explanation:
Worked example – calculating energy per gram of fuel
Energy given out = mass of water × 4.2 × temperature change.
Energy measured in joules, J.
4.2 is the specific heat capacity of water, J/g°C.
Temperature change = temperature of water after heating – temperature of water before heating.
BRAINLY PLZ
How does width affect capillary rise?
The narrower the tube, the water will rise to a greater height.
Explanation:
Capillary rise is the height to which the water rises within the tube, and decreases as the width of the tube increases.
Mike Trout of the Los Angeles Angels has a contract worth $426,500,000. If you earn $100,000 per year, how many years would it take for you to earn what Mike Trout will earn from his contract?
Answer:
The number of years it would take you to earn what Mike Trout will earn on his contract is 4,265
Explanation:
Mike Trout of the Los Angeles Angels has a contract worth $426,500,000
On the other side, you earn $100,000 per year.
To calculate the number of years it would take for you to earn what Mike Trout will earn from his contract, you must divide the amount Mike earned by the amount you earned during a year:
$426,500,000 ÷ $100,000 per year= 4,265
The number of years it would take you to earn what Mike Trout will earn on his contract is 4,265
What is the total number of electrons in all three
P
orbitals if
they are completely filled?
Answer:
C. Six
Explanation:
one filled p orbital holds 2 electrons, so if there are 3 p orbitals there are 6 electrons total.
What phrase is defined as distance over time for a given period?
O average speed
O average distance
O average displacement
O average velocity
Answer:
D. Average Velociry
Explanation:
I majored in Chemistry
Average velocity is the phrase which is is defined as distance over time for a given period.
What is Average velocity?Average velocity is a vector quantity and is defined as displacement which is divided by time. It is expressed in compound units that divide the length by time, such as km/h or mph. The difference between average velocity and average speed is that velocity considers displacement, which has a different concept from distance. Displacement is the difference between two positions in a given direction, so it can be negative to express a reverse direction.
There are different methods to compute average velocity depending on the data available, which include:
Total displacement
Constant acceleration
Two points in a position-time graph
Position function
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Balance HSO4 + ClO3 = HCl + SO3 + OH + O2
Answer:
why was my answer deleted, was it wrong?
Explanation:
Is MgS ionic or covalent
Answer:
Ionic
Explanation:
Mg has 2 electron in it's outermost orbit, by donating this two electron to Sulfur it get stable mg 2+ electronic configuration while sulfur has 6 electron in it's outermost shell ,so sulfur accept this 2 electron and complete it's octet and become s2–.
jack tries to place magnets on his refrigerator at home, but they wont stick. what could be the reason?
Answer: The body of the refrigerator isn't made of magnetic material. Earth's magnetic field is interfering.
Answer:
The refrigerator isnt a surface that is affected by magnets
Explanation:
magnets only stick to certain surfaces, mostly metals like iron and steel. if the surface is made of plastic for example it wont stick.
Which of these is not a characteristic of a renewable resource? Question 1 options: Used up faster than they are able to be replaced Clean for the environment Produces very little waste products Can be replaced in a short amount of time
Answer
Used up faster than they are able to be replaced
Explanation:
The word renewable itself mean non-depletable or naturally replenish able. They cause little to no environmental impact that it can be used for long term. They are available in plenty and cannot be used up in quick time. Hence option a is correct. Rest all are correct about characteristic of a renewable resource
what is the ratio of hydrogen(H) to oxygen(O) in hydrogen peroxide(H2O2)?
A 1:1
B 2:2
C 1:2
Answer: 2:2 but if simplified it’s 1:1
Explanation:
Sodium (Na) is a highly reactive element. Which characteristic of sodium is responsible for
its reactivity?
A. It has 11 protons.
B. Its atomic mass is 22.990.
C. It is a non metal.
D. It has one valance electrons.
Answer:
D. It has one valence electron is Answer.
Explanation:
I hope it's helpful!
Desmond wanted to paint his bedroom. He went to the hardware store and was shown a variety of different paint colors from which to pick Paint is an
example of which kind of product, which is made with chemicals by humans?
A natural
B. synthetic
Caccidental
D. natural resource
Answer:
synthetic
Explanation:
1. Any gentle wind is called a
It's called a breeze
This reaction supports the Law of Conservation of Mass (hint: is the equation balanced?):
2KOH ® K20 + H2O True or
False
Answer:
False
Explanation:
Left:
K = 2 atoms
O = 1 atoms
H = 1 atoms
Right:
K = 2 atoms
O = 1 atoms
H = 2 atoms
O = 1 atoms
As you can see both sides do not have the same amount of atoms, therefore it is not balanced.
Hope this Helps!!:)
Convert 5.00 moles of carbon to grams. Be sure to report your answer with the correct significant figures.
1 moles Carbon to grams = 12.0107 grams
2 moles Carbon to grams = 24.0214 grams
3 moles Carbon to grams = 36.0321 grams
4 moles Carbon to grams = 48.0428 grams
5 moles Carbon to grams = 60.0535 grams
6 moles Carbon to grams = 72.0642 grams
7 moles Carbon to grams = 84.0749 grams
8 moles Carbon to grams = 96.0856 grams
9 moles Carbon to grams = 108.0963 grams
10 moles Carbon to grams = 120.107 grams
Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 60g is the mass of 5.00 moles of carbon.
What is mole?The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.
Mathematically, the formula for mole can be given as
mole of carbon =given mass of carbon ÷ molar mass of carbon
number of mole of carbon= 5.00 moles
mass of carbon=?
molar mass of carbon= 12.0107 grams
Substituting the values in above formula we get
5.00 moles = mass of carbon ÷12.0107 grams
On calculations, we get
mass of carbon =60g
Therefore, 60g is the mass of 5.00 moles of carbon.
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Different substances are made from different ____________ which interact with water in different ways.
Answer: atoms/molecules
Explanation:
What is the empirical formula of a compound if a sample contains 8.52 grams of carbon and 1.42 grams of hydrogen
Answer:
CH2
Explanation:
What type of thermal transfer is a fan cooling you down?
Answer: A
Explanation:
Convection is a heat transfer mechanism where heat moves from one place to another through fluid currents. Forced convection is simply using this mechanism in a useful way to heat or cool a home efficiently, such as using a fan.
hope it help pls mark me brainliest
Answer:
Convection is a heat transfer mechanism where heat moves from one place to another through fluid currents. Forced convection is simply using this mechanism in a useful way to heat or cool a home efficiently, such as using a fan.
a glass of ice water is shown down below before and after it reaches room temperature. which of the following correctly explains something that occurred during that time between these two images
Answer:
the solid melted and gained energy
it also looks like some of the water evaporated
Explanation:
p.s. also the molecules expanded
The picture shows that a physical change has taken place which converted ice to water.
What are physical changes?
Physical changes are defined as changes which affect only the form of a substance but not it's chemical composition. They are used to separate mixtures in to chemical components but cannot be used to separate compounds to simpler compounds.
Physical changes are always reversible using physical means and involve a change in the physical properties.Examples of physical changes include melting,boiling , change in texture, size,color,volume and density.Magnetism, crystallization, formation of alloys are all reversible and hence physical changes.
They involve only rearrangement of atoms and are often characterized to be changes which are reversible.
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plz answer asap !!!!
Answer:it's c
Explanation:
..
Give examples of:
chemical reactions in the kitchen.
• chemical reactions in living things.
chemical reactions in the kitchen
Baking soda and vinegar create carbon dioxide. In both of these cases, a chemical reaction between a solid and liquid creates a new substance, a gas. Both yeast and baking soda can be used to create a gas.
chemical reactions in living things
when you hard boil an egg, the hydrogen sulfide produced by heating the egg white can react with iron from the egg yolk to form a grayish-green ring around the yolk.
Which statements describe band theory? Check
all that apply.
Electrons all have approximately the same
energy.
Electrons move among orbitals of different
energies.
Electrons move freely among atoms
(delocalized)
Answer:
B and C is corrent i got it right on edge
Explanation:
Answer:
Electrons move among orbitals of different energies.
Electrons move freely among atoms (delocalized).
Explanation:
A person running at 5 mph puts on a burst of speed to finish a race at 7 mph. What is the delta velocity?
A. -2
B. 7
C. 5
D.2
State the change in energy that occurs in order to break the bonds in the hydrogen molecules, H2(g) so it can react with O2(g) to form H2O(g).
Answer:
Explanation:
Energy is absorbed to break bonds. Bond-breaking is an endothermic process. Energy is released when new bonds form. Bond-making is an exothermic process.
BRAINLY PLZ
Endothermic process occurs in order to break the bonds in the hydrogen molecules, so it can react with O₂ to form H₂O.
What is Exothermic Reaction ?Exothermic reaction is a reaction that is chemical in nature and in which the energy is released in form of heat, electricity or light. Energy is released when the new bonds are formed and this bond making process is an exothermic process.
What is Exothermic Reaction ?Endothermic reaction is a chemical reaction that absorbs heat from the surroundings. Energy is absorbed when the bonds breaks and this bond breaking process is endothermic process.
According to question in order to break the bonds in the hydrogen molecule is endothermic process. Energy is absorbed when bonds breaks.
Thus, from the above conclusion we can say that Endothermic process occurs in order to break the bonds in the hydrogen molecules, so it can react with O₂ to form H₂O.
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How many plates is Earth made up of?
also this is science not chemistry I just couldn't find a science
Answer:
seven
Explanation:
There are major, minor and micro tectonic plates. There are seven major plates: African, Antarctic, Eurasian, Indo-Australian, North American, Pacific and South American. The Hawaiian Islands were created by the Pacific Plate, which is the world's largest plate at 39,768,522 square miles.