I NEED HELP FAST PLEASE
*please answer correctly*
Will mark brainliest thank you!!
Answers
Answer:
Explanation:
Using Charles Law ,
[tex]\frac{V1}{T1}=\frac{V2}{T2}[/tex]
Using this formula we have ,
V1= 200cm^3
T1=40+273.15 = 313.15 K
T2 = 100+273.15 = 373.15 k
V2= ?
Hence using above formula simplify it we will get ,
V2 = 238.3 cm^3
Answer:
i dont know that plzzz help me tooooo
Related Questions
How do scientists think?
Answers
Answer:
hmmm
Explanation:
about cguro sa planethope nka tulong
Which statement is correct about the water cycle?
1)Precipitation is when water flows into the ground
2)Condensation is when liquid water becomes a vapor
3)The water that exists on planet Earth now is the same water that existed during the age of the dinosaurs
4)Transpiration is water running of the surface of the ground
Answers
Answer:
precipitation is when water flows into the ground
Explanation:
.................
The outside layer of cells on the top and bottom of a leaf
Answers
Answer:
I think it would be the Stomata and the Lower Epidermis
A field of science that studies atoms and molecules is called _______
Answers
A field of science that studies atoms and molecules is referred to as chemistry.
What is chemistry?Chemistry is the discipline of science that examines the attributes, composition, and framework of elements and compounds, as well as the energy released or absorbed once they change.
Food, apparel, shelter, health, power, and clean air, water, and soil are all dependent on chemistry.
Chemical technologies improve our quality of life in a variety of ways by fixing issues in health, equipment, and energy usage.
Respiration, digestion, photosynthesis, cooking food, burning fuel such as coal and petroleum, cleaning garments and utensils, and many more are examples of chemistry in everyday life.
All of these activities occur in our daily lives and are subjected to chemical reactions.
Thus, chemistry is the field of science that studies atoms and molecules.
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Hello can someone pls help me with this question! (Please explain why)
QUESTION: How is an increase in surface area achieved?
A. increasing the size of the reactant particles
B. decreasing the size of the reactant particles
Answers
Answer:
letter A.
Explanation:
the rate of a chemical reaction can be raised by increasing the surface area of a solid reactant. this is done by cutting the substance into small pieces, or by grinding it into a powder.if the surface area of a reactant is inceased: more particles are exposed to the other reactant.
HOPE IT HELPS(◍•ᴗ•◍)❤
Rocks created from the cooling of magma or lava are called
Group of answer choices
sedimentary
metamorphosis
igneous
metamorphic
Answers
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
How many moles in 58 grams of CO3 ?
Answers
Answer:
60.0089
Explanation:
True or False: Photosynthesis can happen anytime, regardless of the amount of reactants present or the presence of sunlight.
Answers
Answer:
This is false
Explanation:
Im in bio and we just learned this lol
Please help!! I'll name you brainliest!!
Answers
Answer:
Chlorine
Explanation:
Potassium needs to lose one electron Chlorine needs to gain 1 electron
Answer:
S (Sulfur)
Explanation:
hope this helps!
Why is wood harder to use as fuel than oil? It takes longer to grow wood that can produce large amount of energy. There is only limited number of energy available in wood. Energy from wood cannot be converted to usable energy. Energy from wood is harder to convert than oil.
Answers
Answer:
it takes longer to grow wood.
Explanation:
2. A book sits on a table. Which of the following is true?
a. The forces acting on the book are balanced.
b. The forces acting on the book are unbalanced.
C. Gravity is the only force acting on the book.
d. The net force acting on the book is 3N.
Answers
Answer:
hi
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
Answers
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.
I NEED HELP! :(
john runs 300 meters north towards school.He forgets his backpack and walks back 300 meters. He then walks 230 meters north and sees his buddy joh. He walks 250 meters east to say hi. He then walks to school which is another 200 meters north and 250 meters west. He does this in 60 seconds
Answers
Answer:
This is the answer if u are trying to figure out how far he walked
1530 meters
Explanation:
300+300+230+250+200+250=1530meter
GUYS QUICK HELP!
is a soda pop bottle a invention or an innovation?
Answers
Answer:
Invention
Explanation:
!Hope This Helps!
How many moles is 118 grams of Argon
Answers
Answer:
[tex]\boxed {\boxed {\sf About \ 2.96 \ moles \ of \ Argon}}[/tex]
Explanation:
To convert from grams to moles we must use the molar mass, which is found on the Periodic Table.
Argon: 39.9 g/molUse the molar mass as a ratio.
[tex]\frac{39.9 \ g \ Ar}{1 \ mol \ Ar}[/tex]
Multiply by the given number of grams: 118
[tex]118 \ g \ Ar *\frac{39.9 \ g \ Ar}{1 \ mol \ Ar}[/tex]
Flip the fraction so the grams of argon will cancel each other out.
[tex]118 \ g\ Ar * \frac{1 \ mol \ Ar}{39.9 \ g \ Ar}[/tex]
[tex]118 * \frac{ 1 \ mol \ Ar}{39.9 \ g \ Ar}[/tex]
[tex]\frac {118 \ mol \ Ar }{ 39.9 }[/tex]
[tex]2.95739348 \ mol \ Ar[/tex]
The original measurement of grams had 3 significant figures, so our answer must have 3 sig figs.
For the number we calculated, that is the hundredth place. The 7 in the thousandth place tells us to round the 5 to a 6.
[tex]2.96 \ mol \ Ar[/tex]
There are about 2.96 moles of Argon in 118 grams.
What does c represent in the carbon cycle diagram?
Answers
Answer:
carbon
Explanation:
I'm pretty sure if not
Answer:
The adjacent diagram shows the carbon cycle with the mass of carbon, in gigatons of carbon (Gt C), in each sink and for each process, if known. The amount of carbon being exchanged in each process determines whether the specific sink is growing or shrinking.
What is the electron configuration for Cl? orbital notation for Cl?
Answers
Answer:
Explanation:
Electron Configuration - [Ne] 3s² 3p⁵
Orbital Notation - Can't type that out, please see the image.
What mass of Na2CO3 is required to create 750 mL of an aqueous solution where the concentration of the carbonate (CO3-2) ions is 1.75 M? (assume complete dissociation)
Answers
Answer:
139.11 grams
Explanation:
The molarity (M) is equal to m (moles) /L (liters).
Notice how it is in mL so converting it would be 0.75 L (750*10-3)
Now plug in the information
1.75=m/0.75
m=1.3125
Now m is in moles so convert to grams to get the mass
1.3125 mol Na2CO3 * 105.9888 g Na2CO3 = 139.1103
The Earth's surface is warmed because _____.
the ionosphere traps the sun's heat
it absorbs all of the sun's radiation
the atmosphere absorbs more short-wave radiation than the land
land and water absorb more short-wave radiation than the atmosphere
Answers
Answer:
b it absorbs all of the suns radiation
Answer:
land and water absorb more short-wave radiation than the atmosphere
Explanation:
Whats the correct answer ?
Answers
Whats the correct answer ???
Answers
The lower the pH level, the more acidic the solution
True or False?
Answers
Answer:True
Explanation:
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
Answers
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
Which type of fertilization is common with animals that live in the water?
1. external fertilization
2. sexual
3. internal fertilization
4. asexual
Answers
External fertilization in animals usually occurs in water or in damp areas in a process called spawning.
Lithium hydroxide reacts with hydrobromic acid(HBr) to produce lithium bromide and water. If you
start with 3.00 moles of lithium hydroxide, how many moles of lithium bromide will be produced?
Answers
Answer:
3.00 moles of Lithium bromide will be produced
Explanation:
The reaction that takes place is:
LiOH + HBr → LiBr + H₂OBy looking at the reaction equation, we can see that the reaction of 1 mol of lithium hydroxide (LiOH) produces 1 mol of lithium bromide (LiBr). Thus, 3.00 moles of LiOH would conversely produce 3.00 moles of LiBr.
Which is not an example of a code?
Choose the correct answer.
A. a secret
B. a memory from the past
C. the sign language alphabet
D. the information on a credit card
Answers
PLEASE HELPPPP!!! IM BEING TIMED
Based on Map 1, which statement describes the main cause of the
weather pattern known as the Arizona monsoon?
A)Much of the southwestern United States is desert.
B)Ocean water to the south of Arizona is warm.
C)Winds at this latitude tend to blow from west to east.
D)Land masses heat up more quickly than oceans.
Answers
Answer:
B)
Explanation:
This should be the correct answer, lmk if it's not
As in the given image, the weather pattern known as Arizona monsoon is caused by the winds at this latitude tend to blow from west to east. Thus, option C is correct.
What is Arizona monsoon?The Arizona Monsoon is a well-defined meteorological phenomenon that affects the southwest region of North America during the summer. It is scientifically referred to as a meteorological "singularity."
Arizona experiences its strongest wind flow during the winter months from the west or northwest, coming from California and Nevada. The winds change to a southerly or southeasterly direction as the summer months approach.
From the Pacific Ocean and the Gulf of Mexico, moisture moves northward. Statewide moisture conditions are drastically altered as a result of this alteration.
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does sugar have ionization of ions in water
Answers
DONT HAVE MUCH TIME 4 MIN
21. The number of protons in an element is called the _______________ number.
22. Irene Curie used ___________________ as the source of alpha particles for her research.
23. Uranium goes through _____________ decay ____________ (a number) times to produce
Plutonium.
24. ________________ is a raw Uranium ore which was central to the discovery of radioactivity.
25. The ____________________ was cited in the letter signed by Einstein as having ore with
high concentrations of U-235.
Answers
Answer:
21. A to m i c number
22. P o l o n i u m
23. N e p t u n i u m -239, I don't know the second one
24. U r a n i n i t e
25. M a n h a t t a n Project
Explanation:
These are just my guesses, So some of them might not be correct.
is soil a producer, decomposer, or consumer
Answers
Plants are the producers — they use the sun's energy to convert water and carbon dioxide into plant material via photosynthesis. ... A producer is a living thing that makes its own food from sunlight, air, and soil. Green plants are producers who make food in their leaves.