Answer:
Water's unique density, high specific heat, cohesion, adhesion, and solvent abilities allow it to support life.
Explanation:
How many atoms are in 5.31 mol of Iron?
Answer:
3.77 moles of Fe contain 2.27 × 10, 24 as an exponent
Helpppp pleaseee for 15 points
Answer:
What is filteration:Filtration, the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles. ... In some processes used in the production of chemicals, both the fluid filtrate and the solid filter cake are recovered.
When do we use it:Filtration is used to separate particles and fluid in a suspension, where the fluid can be a liquid, a gas or a supercritical fluid. Depending on the application, either one or both of the components may be isolated.
In order to separate a salt-water mixture,should a student use filtration:The mixture can be separated by filtration, by dissolving the mixture in water. Salt will dissolve in the water, whereas sand will not.
Explanation:
hope it help's. pls mark as the brainliest.Rocket out.Please help asap!
Subject: science
I just need some easy answers :)
Answer:
help with what? Let me know in the comments! :)
Explanation:
Argon atom can exist freely in nature, why
Answer:
Argon can exist freely in nature because it has a full octet of electrons the way its found in the nature is the same way its found in periodic table of element in vast amouts of stabilization.
(e) Another student investigated the rate of a different reaction
Table 3 shows the results from the different reaction
Headings that you a
will appear here.
Table 3
Mass lost when the reaction was
complete
9.85 g
Time taken to complete the reaction
2 minutes 30
seconds
Calculate the mean rate of the reaction using Table 3 and the equation:
mass lost in g
mean rate of reaction time taken in s
Give your answer to two decimal places.
Answer:
0.07 g/s.
Explanation:
From the question given above, the following data were obtained:
Mass lost = 9.85 g
Time taken = 2 min 30 s
Mean rate =?
Next, we shall convert 2 min 30 s to seconds (s). This can be obtained as follow:
1 min = 60 s
Thus,
2 min = 2 × 60 = 120 s
Therefore,
2 min 30 s = 120 s + 30 s = 150 s
Finally, we shall determine the mean rate of the reaction. This can be obtained as illustrated below:
Mass lost = 9.85 g
Time taken = 150 s
Mean rate =?
Mean rate = mass lost / time taken
Mean rate = 9.85 / 150
Mean rate = 0.07 g/s
Therefore, the mean rate of the reaction is 0.07 g/s
Where glucose is broken down into smaller molecules to produce energy. The second part of the process takes place in the
Answer:
Mitochondria
Explanation:
Glucose in an energy molecule contained in carbohydrate food substances. The end product of the digestion of carbohydrate is glucose which is broken down to produce energy.
The sequence of breakdown of glucose is as follows; In the first step, 6-carbon glucose is broken down into two molecules of 3-carbon pyruvic acid. This occurs in the cytoplasm of the cell. It is an anaerobic process.
In the second step which occurs in the mitochondrion, each of the molecules of pyruvic acid is now oxidized to carbon dioxide and water and energy is produced in the process.
I need help, decreases or increases
Answer:
increase
Explanation:
2. How much heat is needed to convert 2.7 moles of ethanol at its boiling
point from liquid to vapor?
Answer:
así que busca, pero la respuesta está en por cierto Explanation:
The quantity of heat needed to convert 2.7 moles of ethanol at its boiling point from liquid to vapor is 104.49 kJ
From the question,
We are to calculate the heat needed to convert 2.7 moles of ethanol from liquid to vapor.
Using the formula
Q = n × ΔHvap
Where Q is the quantity of heat
n is the number of moles
and ΔHvap is the enthalpy of vaporization
From the given information,
n = 2.7 moles
and
ΔHvap of ethanol = 38.7 kJ/mol
Putting the parameters into the formula, we get
Q = 2.7 × 38.7
Q = 104.49 kJ
Hence, the quantity of heat needed to convert 2.7 moles of ethanol at its boiling point from liquid to vapor is 104.49 kJ
Learn more here: https://brainly.com/question/14309811
You need 2 pieces of bread, 1 tablespoon of peanut butter and 2 tablespoons of jelly to make a
sandwich. If you have 10 pieces of bread, 4 tablespoons of peanut butter and 20 tablespoons of jelly,
what is the limiting reactant?
Answer:
peanut butter
Explanation:
because you have 10 pieces of bread, 4 tbs of peanut butter, and 20 tbs of jelly, meaning you can make 5 sandwwitches with the bread, 4 sandwitches with the peanut butter, and 10 sandwitches with the jelly. so you dont have enough peanut butter to make all the sandwitches
According to the given scenario, If one have 10 pieces of bread, 4 tablespoons of peanut butter, and 20 tablespoons of jelly, the limiting reactant will be peanut butter.
What is a limiting reactant?
The reactant that gets consumed first in a chemical reaction and result in limiting the formation of product is referred to as a limiting reactant.
According to the given scenario, the quantity of peanut butter will get consumed first so it will act as a limiting reactant.
Thus, If one have 10 pieces of bread, 4 tablespoons of peanut butter, and 20 tablespoons of jelly, the limiting reactant will be peanut butter.
For more details regarding limiting reactant, visit:
https://brainly.com/question/14225536
#SPJ2
How many moles of O2 are produced in the decomposition of 24 g of water in the
following reaction?
2H20 - 2H2 + O2
which location will experience the greatest amount of weathering
Answer:
Explanation:
Weathering occurs fastest in hot, wet climates. It occurs very slowly in hot and dry climates.
find the area given rectangle.
The length and and breadth of a rectangle are 3abc³ and 4abc units. The area of rectangle is __ sq.unit .
Answer:
The perimeter of a Rectangle P= 2(l + b)
Area of a Rectangle A = l × b
Why wasn't the water pasteurized? I chose Claim 1: If you follow the instructions, the POW kits will always heat the water above the correct temperature for pasteurization (65°C), but some people didn't follow the instructions Can someone help me support it?
Answer:
Claim 1- The evidence that supports my claim because Evidence Card b says “One man got sick, but his two children did not. He used water from Whip River. He used the cube to heat the first pitcher of water, which he gave to his kids, and then reused the cube without reheating for the second pitcher, which he drank himself.” My first piece of evidence is that if you don't follow thee directions then something bad would happen
Explanation:
Hey will anyone help sign or buy from my fundraiser or petition? I just posted it and someone just answer no, which isnt helping.
here is the petition: https://www.change.org/p/eric-j-holcomb-change-healthcare-in-indiana
here is the fundraiser: https://www.customink.com/fundraising/change-healthcare-in-indiana
Answer:
signed!!
Explanation:
mark me brainliest pls
Answer:
if it means i could help ppl across the world, then yes! sighned! i dont
have money so i cant do the fundraiser aYvY SORRY
Explanation:
Any skilled chemists want to give me some backup?
Answer:
SO2, HCI and NH3
Explanation:
these three compounds vary inversely with the temperature
How do you write 0.00001 in scientific notation?
Answer:
1×10^-5
hope it helps you
Answer:
According to the text
"Move the decimal 5 times to right in the number so that the resulting number, m = 1, is greater than or equal to 1 but less than 10.
Since we moved the decimal to the right the exponent n is negative. n = -5.
Write in the scientific notation form, m × 10n = 1 × 10-5""
Explanation:
Which equation represents a neutralization reaction?
Answer: The equation represents a neutralization reaction is HNO3(aq) + KOH(aq) → KNO3(aq) + H2O(). The answer is letter C.
Answer:
The answer is C.
Explanation:
Edge2021
Arrange the following formulas in increasing percentage of nitrogen. Show a NEAT solution.
a) NH4NO3
b) CO(NH2)2
c) NH3
Answer:
c) NH3Explanation:
I HOPE IT HELPS :) VERY MUCH
Iron is extracted from its ore (hematite) in the blast furnace. Which gas is produced as a waste product?
Answer:
CO2
Explanation:
CO2 or carbon dioxide is produced when iron is extracted from its ore. Carbon monoxide Co is used as reducing agent in iron extraction. In this reaction iron ore is reduced to iron and CO is oxidized to CO2 or carbon dioxide which is released in the process. There extraction of iron is redox reaction.
Guys I need ur help I might as well just ask ur smarties for help ahah n yup I’ll be brainlisting;)
1) What have been the wider effect on the community of nuclear accidents? (Chernobyl)
Answer:
Hey sis
will you be my sis??
please give reply
I will be waiting
and fol.low.me
why is nuclear a good energy source?
Answer
well it gets used
Explanation:
because it generates power through fission
How many L of a 7.5 H2SO4 stock solution would you need to prepare a dilute solution 100 L of 0.25M H2SO4
Answer:
3.33 L
Explanation:
We can solve this problem by using the equation:
C₁V₁=C₂V₂Where the subscript 1 refers to one solution and subscript 2 to the another solution, meaning that in this case:
C₁ = 0.25 MV₁ = 100 LC₂ = 7.5 MV₂ = ?We input the data:
0.25 M * 100 L = 7.5 M * V₂V₂ = 3.33 LThus the answer is 3.33 liters.
Out of water waves, light waves, sound waves, and seismic waves (earthquake) what had the greatest velocity?
Answer:
Light waves are the fastest in existince.
What is the un-balanced equation for this
reaction?
Mg +0 --> Mgo
Mg + 02
--> Mg02
Mg + 02 --> Mgo
Answer:
2Mg + O2 → 2MgO
Explanation:
How is an acid or base like a solution? How is it different?
33. Carrying capacity is the largest number of organisms of a particular
species that an ecosystem can support over time,
a true
b. false
which substance is reduced ?
Cl^2 +2KBr= 2KCl + Br2
Answer:
Initially Br is in -1 oxidation state and Cl in 0 oxidation state. Finally Cl is in -1 o.s. and Br in 0.
This means that Br has oxidised from -1 to 0 and Cl is reduced from 0 to -1.
KBr is reducting agent as it helps Cl to reduce.
Cl2 is oxidising agent as it helps Br to oxidise.
Explanation:
The diagram shows the different models of the atom that eventually led to the modern atomic theory.
Which model was proposed as a result of Rutherford's scattering experiment where positive particles did not pass straight through a foil as expected? (5 points)
Model A
Model B
Model C
Model D
Answer:
B.
Explanation:
The atomic model represents the position of the sub-atomic particles. Model A was proposed after Rutherford's scattering experiment where the positive particles were deflected in the middle. Thus, option A is correct.
What was Rutherford's atomic model?Rutherford's atomic model proposed the presence of the positive nucleus in the middle of the atom while the electrons surrounded them in their orbitals with a negative charge.
He performed the scattering experiment where alpha particles emitted by the radioactive element were used to locate the positions of the electrons, neutrons, and protons.
According to the experiment, model A, best fits as the nucleus made of protons and neutrons takes the center of the atom with negative electrons surrounding them. The nucleus is small as compared to the entire atom.
Therefore, option A. model A best proposes Rutherford's model.
Learn more about Rutherford's model here:
https://brainly.com/question/17941604
#SPJ2
what is the formula for the compound formed by Ba2+ and Mn04 ?
Answer:
Barium permanganate | Ba(MnO4)2 - PubChem.
Description: Barium permanganate appears as ...
Synonyms: BARIUM PERMANGANATE7787-3...
Molecular Formula: Ba(MnO4)2 or BaMn2O8
Molecular Weight: 375.2 g/mol
Explanation:
Is there a solution for the impacts overfishing?
Answer:
The world’s oceans are so big we thought for a long time that there was nothing humans could do to hurt them. Now we’re facing an imminent and global collapse of our fisheries, projected to happen as early as 2048, thanks to overfishing, wasteful fishing practices and massive overconsumption. But, there are a few key tried-and-tested solutions to overfishing that have been successfully implemented around the world. The trick is to scale these solutions up to a global scale, encouraging countries that have originally been resistant to helping and get them onboard, and supporting countries that don’t have the means to update their fishing policies themselves.
Hope it will help you