Answers
Related Questions
how many moles are in 83 particles of sodium chloride?
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Answer:
there are 1.4201927800478769 moles in 83 particles of sodium chloride. or 1.42 for short.
Explanation:
What will happen if you heat aliquid to high temperatures?
Answers
Answer:
An increase in the temperature of a liquid causes an increase in the average speed of its molecules. As the temperature of a liquid increases, the molecules move faster thereby increasing the liquid's kinetic energy.
How can we find life on other planets?
Answers
Through satellites...
Please please help me
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Answer:
I agree with Omar because it depends on what the charge of the object and magnet is. If the magnet is negative and the object is positive, they will pull together. If the magnet is negative and the object is negative then they will pull apart.
Explanation:
what is elimination reaction
Answers
A gas has a volume of 590 mL at a temperature of –55.0°C. What The temperature be if the volume expands to 15L at constant pressure?
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Answer:
5542.37 K
Explanation:
Given that,
Initial volume, V₁ = 590 mL
Initial temperature, T₁ = -55°C = -55 + 273 = 218 K
Final volume, V₂ = 15 L
We need to find the final temperature of the gas. The relation between the volume and the temperature is given by :
[tex]\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}[/tex]
Where
T₂ is final volume of the gas
Put all the values in above relation,
[tex]T_2=\dfrac{V_2T_1}{V_1}\\\\T_2=\dfrac{15\ L\times 218\ K}{590\times 10^{-3}\ L}\\\\T_2=5542.37\ K[/tex]
So, the required temperature is equal to 5542.37 K.
How many moles of Ag can be obtained from 2.77 moles Cu using the following
balanced reaction?
2AgNO3
+ Cu
Cu(NO3)2
+ 2Ag
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Answer:
2.77×2= 5.4 mol Ag can be obtained
Which affects both deep water and surface currents in the ocean? the wind the temperature of the water the Coriolis effect None of the above
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Answer:
the wind and the temperature of water both drive ocean currents
Answer:
B. Write 'T' for true or 'F' for false statements :
1. Publisher works only with document in fixed shapes and sizes.
2. Viewing tools are only for editing purpose.
3. Text box icon is found in Styles group.
4. Publisher does not allow you to add images to your document.
5. Margin guides are blue lines that mark the edges.
Part A
Choose the paramagnetic species from below.
O He
O Te
O T14+
O All of the above are paramagnetic.
None of the above is paramagnetic.
Answers
Answer:
o He
Explanation:
basyshsiz0qnshshhsjzz
the exact position of the electrons of an atom cannot be determined because they are in constant ___
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i’m pretty sure-
Helpppp me pleaseeee now I’ve been struggling so bad w this
Answers
Answer:
I don't know what the passage says, but I feel like the most logical conclusion is D or the last one.
Explanation:
Answer:
D! Hope this helps! Figured id help with all of ur questions!
Explanation:
Im a wiz at science! ;)
What part of the food. chain is a pine?
a:primary consumer
b:secondary consumer
c:herbivore
d:producer
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Answer:
producer
Explanation:
What evidence can be used to explain the type of mutualistic relationship present between the water buffalo and frog?
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Please Answer Giving Brainleist
What gas in the air is used by plants to make their own food?
A) Nitrogen
B) Water vapor
C) Carbon dioxide
D) Oxygen
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Answer:
C) Carbon dioxide is the answer.
Answer:
C. Carbon Dioxide
Carbon is absorbed by plants and chemically converted to oxygen via photosynthsis.
Hope this helps!
Help please
Lunar eclipses happen when the _____.
moon passes between the Earth and the sun
Earth passes between the sun and the moon
sun passes between the Earth and the moon
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Answer:
mook passes between the earth and sun
For the reaction shown, drsw the major(s) expected product.
Answers
Answer:
2
Explanation:
how many moles are 20 grams of Helium ?
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Answer: The correct answer is 5.00 moles
Explanation:
water
air
multiple cells
a place to live
Answers
plants need to be watered in order to survive
Answer:
I guess it WATER
What is the percent yield of LiCl if I produced 30.85g LiCl and my theoretical yield was calculated to be 35.40g LiCl?
Answers
Answer:
87.15%
Explanation:
To find percent yield, we can use this simple equation
[tex]\frac{Actual}{Theoretical} *100[/tex]
Where "Actual" is the amount in grams actually collected from the reaction, and "Theoretical" is, well, the theoretical amount that should have been produced.
They give us these values, so to find the percent yield, just plug the numbers in.
[tex]\frac{30.85}{35.40} *100\\\\ =87.15[/tex]
So, the percent yield is 87.15%
An easy trick to remember how to do this is just to divide the smaller number by the bigger number and move the decimal back two places. If you have a percent yield greater than 100%, something is wrong in the reaction.
Photosynthesis in a plant is an example of which characteristic of living things?
1. Reproduction
2. Response to the environment
3. Growth and development
4. Ability to obtain and use energy
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Answer:
4. Ability to obtain and use energyhelp me please i beg u
Answers
Answer:
none of the above
Explanation:
Hydrazine (N2H4) and dinitrogen tetroxide (N2O4) form a self-igniting mixture that has been used as a rocket propellant. The reaction products are N2 and H2O. Part A Write a balanced chemical equation for this reaction. Express your answer as a chemical equation. nothing A chemical reaction does not occur for this question. Request Answer Part B What is being oxidized, and what is being reduced
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Answer:
2N₂H₄+N₂O₄→3N₂+4H₂O; N₂H₄ gets oxidized, N₂O₄ gets reduced.
Explanation:
Part AThey tell us what substances react to form what products, so we can write an unbalanced chemical equation from those substances.
N₂H₄+N₂O₄→N₂+H₂O
To balance this equation, we need to make it so there is an even amount of each element on both sides of the reaction. We can do this by multiplying the amount of each substance by adding a coefficient in front of it.
2N₂H₄+N₂O₄→3N₂+4H₂O
Part BTo identify what is being oxidized and what is being reduced, look at the oxidation charges of each element.
N₂H₄ gets oxidized, N₂O₄ gets reduced.
Please help on question 7 and 8, i really need help and this is for marks! I only have 9 min left i will mark brainliest to whoever gives the best answer!
Answers
Answer:
I'm going to go with conduction
Explanation:
At first I thought it was combustion but I read the problem incorrectly. It seems like the liquid boils after you put them on the hot plate.
It's most likely conduction because heat and energy is being transferred into the liquid from the hot plate
Ecosystems are self-sustaining. They naturally recycle resources without human intervention. Do you think this is true for a pop- bottle biome?
Answers
Answer:
yes. For a pop bottle biome to be self sustaining it needs a water cycle, mineral cycle, solar energy flow, and a balance.
Explanation:
hope this helps
Answer:
I would say no because you have to add water and other recourses for it to grow and work
Explanation:
Choose the larger atom from each of the following pairs.
a. Between Se and Te, the larger atom is __________
b. Between I and Kr, the larger atom is ________
c. Between P and Pb, the larger atom is _______
d. Between Ge and Br, the larger atom is___________
e. Between G e and B r, the larger atom is _________
1. Se
2. Kr
3. S
4. C
Answers
Answer:
C, between P and Pb, largest atom is Pb
The larger atom from each of the following pairs is as,
a. Between Se and Te, the larger atom is Te .
b. Between I and Kr, the larger atom is I .
c. Between P and Pb, the larger atom is Pb .
d. Between Ge and Br, the larger atom is Ge .
e. Between G e and B r, the larger atom is Ge .
How atomic size of elements vary in periodic table?In periodic table, on moving from top to bottom in a group the atomic size of elements increases while on moving left to right in a period the atomic size of elements decreases.
To learn more about periodic table here.
https://brainly.com/question/11155928
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plz someone help me i dont get this and i need to finish this
Answers
Answer:
The height of A is 900
Explanation: Beside A, there is a number which explains what the height is so the answer is A.
Help me I’m struggling with this one
Answers
Answer:
Eukarya
Explanation:
It's larger than a prokaryotic cell and it has a nucleus.
What is the molarity of ZnCl, that forms when 20.0 g of zinc completely reacts with CuCl2, according to the following reaction? Assume a final
volume of 285 mL
Zn(s) + CuCl2(aq) → ZnCl2(aq) + Cu(s)
Answers
Hard water contains relatively large concentrations of
A. Magnesium ions
B. Calcium ions
C. Iron ions
D. All of these ions
Answers
Answer:
I think the answer is All of these ions
Aqueous hydrochloric acid HCl will react with solid sodium hydroxide NaOH to produce aqueous sodium chloride NaCl and liquid water H2O. Suppose 15.7 g of hydrochloric acid is mixed with 27. g of sodium hydroxide. Calculate the maximum mass of sodium chloride that could be produced by the chemical reaction.
Answers
Answer:
25.155 gram
Explanation:
HCl(aq.) + NaOH(aq.) ⇒ NaCl + H2O
According the above equation equal number of moles of reactant are producing same number of moles of products.
Now, no. mole of HCl = 15.7/(1+35.5) = 0.43 moles
no. of moles of NaOH = 27/(23+16+1) = 0.675 moles
Since the amount of sodium hydroxide exceeds the amount of hydrochloric acid, the maximum amount of each substance participating in the reaction is HClν ν 0.43 moles .Therefore, the maximum amount of NaCl that can be produced is as follow
= (23+35.5)×0.43 = 25.155 gram