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Answer 1
Hello I was wondering if you eventually got the answer?

Related Questions

What would happen to Earth's temperature if the energy absorbed from the sun (solar radiation) was less than the emitted (thermal) energy leaving the Earth?

Answers

Answer:

The Earth would become cooler until it probably attains a new equilibrium between absorbed solar energy and emitted solar energy.

Explanation:

The earth's energy balance refers to the balance between the energy absorbed from the sun (solar radiation) and the emitted (thermal) energy leaving the Earth. This balance ensures that the earth's surface temperature remains fairly constant.

When energy from the sun reaches the earth, it is absorbed and used by various features of the earth which uses it for their energy needs. Eventually, any excess radiant energy is sent back or emitted from the earth back into space such that the balance between absorbed and emitted energy is maintained.

However, if there is an imbalance whereby more energy is emitted than is absorbed, this would result in the earth losing more heat than it receives. This would result in the earth becoming more significantly colder until it probably attains a new equilibrium between absorbed solar energy and emitted solar energy.

Calculate the volume of a 0.15 mol dm-3 Ba(OH)2 solution required to completely neutralize 45 cm3 of a 0.29 mol dm-3 HNO3 solution. Note: Ba(OH)2 + 2HNO3 --> Ba(NO3)2 + 2H2O

Answers

Answer:

[tex]V_{base}=43.5cm^3[/tex]

Explanation:

Hello there!

In this case, given the neutralization chemical reaction of barium sulfate and nitric acid, it is possible to evidence the 1:2 mole ratio between them; thus, at the equivalence point we have:

[tex]2n_{base}=n_{acid}[/tex]

Which in terms of molarities and volumes is:

[tex]2M_{base}V_{base}=M_{acid}V_{acid}[/tex]

In such a way, by solving for the volume of base, we proceed as follows:

[tex]V_{base}=\frac{M_{acid}V_{acid}}{2M_{base}} \\\\V_{base}=\frac{45cm^3*0.29mol*dm^{-3}}{2*0.15mol*dm^{-3}} \\\\V_{base}=43.5cm^3[/tex]

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3. Students measured the mass of the reactants and products for a combustion reaction they observed.
When they measured the mass of the products, they discovered the products had a greater mass than
the reactants. How did this unexpected change in mass occur?
A. Stadents made a measurement error, because ending with more products is impossible.
B. The reactants had hidden materials within them that had no mass until the reaction was complete.
C. The products of reactions often have greater mass, because the law of conservation is not
applicable in all chemical reactions.
D. The reaction occurred in an open system, so during the reaction a gas interacted with the reactants.
The mass of the gas could not be measured before the reaction.

Answers

Answer:

A. Students made a measurement error, because ending with more products is impossible.

Explanation:

The law of conversation of matter tells us that in a chemical reaction, matter is never created or destroyed, it's simply converted from one form to another. So the mass of reactants should always equal the mass of the products in a chemical reaction. If there is excess mass in the product, the students have made an error of some kind.

what is a molecule??

Answers

Answer:

molecule is a group of atoms bonded together representing the smallest fundamental unit of a chemical reaction

Balancing chemical equation:
_Na+_MgF2—>_NaF+_Mg
Na= ? Na= ?
Mg= ? Mg= ?
F= ? F= ?

Answers

2Na + MgF2 → 2NaF + Mg

I need help please i need to turn this in today

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Answer:

Natural phenomena such as melting glaciers is due to the rise in temperature. This will result to extinction of flora and fauna. Moreover it can cause extreme flooding due to rise in water level in other water bodies such as rivers, lakes

Volcanic activity actually caused More global warming than we have today by releasing a ton of greenhouse gases from the ground to the atmosphere. Ice age when the earths tilt and orbit was in such a way that minimal solar radiation made it to the northern hemisphere

PLEASE HELP ILL MARK BRAINLIEST

Answers

Answer:

1. true

2. existing matter

3. the materials simply turn into gases you cannot see

hope that helps! ☺

plz mark Brainliest!

Pls help will give brainlist

Answers

Answer:

D. 5

Explanation:

The coefficient will almost always be the whole number in front of the  variable.

example

5(x)= 7

The coefficient would be 5.

Reference page.
What happens when you mix hydrogen, oxygen and fire together?

Answers

Answer:

this could result to things like wild fires a tornadoes

Explanation:

Help please!! In this question x represents which element?
31
15 x
A. 31 gallium Ga
B. 15 phosphorus P
C. 46 palladium Pd

Answers

Answer: think It is A. 31 gallium Ga or  C. 46 palladium Pd

What type of reproduction requires uniform population.​

Answers

Answer:

Asexual reproduction .

Explanation:

Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction from either unicellular or multicellular organisms inherit the full set of genes of their single parent.

Which of the following statements is correct?
Group of answer choices

A. Low pressure indicates rising air, which allows clouds to form.
B. High pressure indicates rising air, which allows clouds to form.
C. Low pressure indicates sinking air, which allows clouds to form.
D. High pressure indicates sinking air, which allows clouds to form.

Answers

I think its A. Low pressure indicates rising air, Which allows clouds to from.

Which of the following pairs of elements will combine to produce a covalent bond?
1-Hydrogen and chlorine
2-Magnesium and oxygen
3-Lithium and bromine

Answers

Answer:

Hydrogen and Chlorine

ie HCL

The pairs of chemical elements that will combine to produce a covalent bond is: 1. Hydrogen and chlorine.

In Chemistry, the three (3) main types of chemical bonds include:

Ionic bonds: Lithium and bromineHydrogen bonds: Hydrogen and oxygen.Covalent bonds: Hydrogen and chlorine.

A covalent bond can be defined as a type of bond that typically involves the sharing of electrons between the atoms of a chemical element.

For example, the type of bond that is produced (formed) between hydrogen atoms and a chlorine atom is a covalent bond.

The hydrogen atom shares it single electron with a chlorine atom that is having seven (7) valence electrons to produce an inert gas such as hydrochloric acid (HCL).

In conclusion, the pairs of chemical elements that will combine to produce a covalent bond is hydrogen and chlorine.

Read more: https://brainly.com/question/24212500

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Why is water called.compound​

Answers

Answer:

because it's composed of two elements, hydrogen and oxygen. water is technically a molecular compound tho, for it has two hydrogens.

Describe what happens when a bond is created between magnesium and bromine. Be specific and explain in terms of electrons.

Answers

Answer: Magnesium and Bromine/MgBr2 = Ionic compounds

Explanation: When atoms form together they can form between Ionic Compounds and molecules; this could depend on if they're joined by Covalent bonds as well because when atoms form with Covalent bonds, it forms Molecules.

If both samples contain the same amount of gas, which sample has a greater volume? use your knowledge of gas laws to explain your answer

Answers

Answer:A modern statement is: Avogadro's law states that "equal volumes of all gases, at the same temperature and pressure, have the same number of molecules." For a given mass of an ideal gas, the volume and amount (moles) of the gas are directly proportional if the temperature and pressure are constant.

Explanation:

The Avogadro's law is used here to determine the volume of the gas. Here the both samples have equal volume since they contain the same amount of gas.

What is Avogadro's law?

The Avogadro's law states that equal volumes of all gases under similar conditions of temperature and pressure contain equal number of molecules. Mathematically the law can be expressed as:

V ∝ n

The gases show great uniformity in their behaviour irrespective of their nature. Some useful generalisations have been deduced from the behaviour of gases which are known as gas laws.

The Avogadro's law follows that the volume of a gas is directly proportional to the number of molecules. But the number of molecules (N) of any gas is directly proportional to its number of moles (n).

So here if both samples contain the same amount of gas, both of them have the equal volumes. We cannot determine one with greater volume.

To know more about Avogadro's law, visit;

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What does what does c6h12o6+6o2→6co2+6h2o+energy equal to?

Answers

Answer: c6h12o6+6o2→6co2+6h2o= C6H12O6 + 6O2 -> 6CO2 + 6H2O Yields 2755 kJ/mole of glucose. The reverse of this reaction – combing carbon dioxide and water to make sugar is known as photosynthesis. Photosynthesis is the process responsible for storing all the energy we extract from fossil fuels, crops, and all of our food. We will also see that it is part of a globally important cycle affected by our consumption of fossil fuels. Photosynthesis How is photosynthesis able to run the reaction above in the reverse direction? Somehow it must come up with 2755 kJ of energy to make each mole of glucose. Where does that energy come from? The short answer: photons of sunlight. The long answer: When the pigment chlorophyll inside the chloroplasts of a photosynthetic organism (phytoplankton, trees, other plants) absorbs sunlight, it becomes energetically ‘excited’ and grabs the hydrogen atoms away from a water molecule, leaving the oxygen atoms to escape as O2 gas. This is called ‘splitting water.’ The hydrogen atoms are then split into their component protons and electrons. The electrons are used to reduce carbon dioxide, in a series of many steps requiring more absorption of sunlight by chlorophyll, to glucose. When carbon dioxide receives those electrons, the extra negative charge attracts protons from elsewhere, creating hydrogen atoms attached to the carbon atom. This process is called reduction. When those reduced carbon dioxide molecules are combined together in a larger molecule, the result is glucose. This ‘combing together’ of small molecules requires an input of energy, which is provided by the ATP molecules made by the protons diffusing through the membrane of the chloroplast. The ATP molecule is simply a molecule that biology uses to store energy for later use. In this case, the mechanical energy created by the protons diffusing across the membrane turns a sort of molecular turbine that smashes together its precursors.

Determine the mass of the following.

a) 5.65 x 1024 molecules of CaBr2
b) 4.25 x 1023 molecules of N2
c) 9.10 x 1022 molecules of Ba(NO3)2
d) 3.01 x 1022 molecules of Ga2(CO3)3

Answers

Answer:

a ) 1876.14 grams CaBr2

b ) 19.78 grams N2

sorry..i only have time to do the first two :)

Explanation:

1. Explain where they bury remains at the Forensic Osteological Research Center and why

Answers

Answer:

In the middle of the forest.

Explanation:

They have to bury the remains in the middle of the forest at the Forensic Osteological Research Center in order to study the decomposition of the dead person. By studying the decomposition of dead person we can get a lot of information which can be used in the study of criminal cases and solving of crimes. The middle place in the forest is a perfect place to bury the remains due to presence of huge amount of microbes as well as insect that helps in the decomposition.

how is it proved that carbon is present in sugar?​

Answers

Answer:

In all living organisms, in substances like carbohydrate, starch, urea etc. To prove sugar contains carbon, take a little amount of sugar in spoon and heat it gently till it melts and turned into yellowish color. On further heating it changes into brown colored mass and then black, which is charcoal.

Take a small bit of sugar on a spoon and slowly heat it until it melts and turns a yellowish tint to demonstrate that it contains carbon. As it continues to heat up, it transforms into charcoal, which is a black mass first.

What is Charcoal ?

Strongly heating wood with little oxygen produces charcoal, a light black carbon residue that has been stripped of all water and volatile components.

Since the beginning of time, charcoal has been used for a wide variety of reasons, including art and healing, but its most significant usage has been as a metallurgical fuel. The typical fuel for a blacksmith's forge and other uses requiring high heat is charcoal.

Sugar breaks down into carbon and water when it is heated. Water is still a chemical, but it can't be heated

Thus,  As it continues to heat up, it transforms into charcoal, which is a black mass first.

To learn more about charcoal, follow the link;

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Some weather conditions are shown.

Weather Conditions
• Cold front moving in behind warm, moist air
• Heavy, constant winds
• Sudden hail
• Unstable atmosphere
Which type of severe event is MOST likely to occur during these weather conditions?

Answers

Answer:

Tornado

Explanation:

This is because, tornados are heavy constant winds that are blowing around all over causing an unstable atmosphere. Sometimes the weather will change drastically like causing hail, and cold fronts moving in. This is exactly what matches the conditions you show! :)

Hope this helps! Please mark as brainliest!

25. The ability of one substance to dissolve in another at a given temperature and
pressure is known as:
a. Solubility
b. Freezing point
c. Melting point
d. Concentration

Answers

The answe will be c. Melting piont I’m pretty shure

Answer:

Melting point

Explanation:

And here is your answer hope it would be correct

I need help ASAP
Extra points & brainlest:)

Answers

Answer:

it is c

Explanation:

Answer:

Lysosome

Explanation:

The lysosome of a cell removes waste and deports it to the Golgi Apparatus to remove completely

If the Earth were to spin half as fast as it does now, how many hours would be in one day (one complete spin)?
(Science)

Answers

Answer:

12hrs

Explanation:

Hope this helps

Answer:

12 hours

Explanation:

it's half of the time in a day now

how can water become more acidified than normal due to
atmospheric pollutants

Answers

Answer:

The water can become acidified than normal because all the pollution such as when carbon dioxide can dissolve in sea waters causing the water be polluted because of the bad air.

Explanation:

1. Which of the following is not an example of a form of carbon?
O fullerenes
O graphite
salt
diamond

Answers

Salt diamond. Cuz those are mineral .

Please help me with this

Answers

Answer not shown is the answer

Which of the following is a potential disadvantage of using wind energy? (2 answers)
A)It has potential to kill fish caught in the turbines
B)The source of energy can sometimes be inconsistent
C)It alters migratory bird routes
D)It is influenced by the amount of cloud cover
E)It releases high amounts of carbon dioxide when used

Answers

Answer:

It's probably b

Explanation:

(I'm wrong aren't I)

UGRENT! Please help showing all work

Answers

Answer:

wait I AM TRYING..................

this is limiting reactant

Which of the nine substances are made of three elements?

Answers

Answer: You are made of mostly 6 elements: Oxygen, Carbon, Hydrogen, Nitrogen, Calcium, and Phosphorus. Some of these elements combine to form compounds in your body.

Explanation:

Oxygen, Carbon, Hydrogen, Nitrogen, Calcium and Phosphorus
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Kara bought a gift for her nephew. She spent $25 on the gift. Sales tax was 6.75%. What was the total cost for the gift , including tax? PLEASE HELP!Simplify the polynomial. Fill in the blanks with the missing numbers.5x5+11x^2+4x6x^2+8 Which of the following is an example of an introductory statement? A.The plan costs too much to start. B.However, only three members will be in attendance. C.Finally, we should keep in mind that the vote will determine how much money the city will receive. D.At present time, the council will meet on Thursday to decide if they should put the matter up for a vote. Example sentence using the word republicanism Which part of the excerpt contains a paradox? . . . I know perfectly well whom she will place me next to . . . She will place me next Mary Farquhar, who always flirts . . . It is simply washing ones clean linen in public. Besides, now that I know you to be a confirmed Bunburyist . . . 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Friends, Romans, countrymen, lend me your ears.I come to bury Caesar, not to praise him.The evil that men do lives after them;The good is oft interrd with their bones.So let it be with Caesar.Background information:"The Evil That Men Do is the title of a song by the English heavy metal band Iron Maiden. The lyrics of the chorus say that peoples evil deeds live on.Iron Maidens reference to the line from Shakespeares play is an example of( )cultural allusion.( )literary allusion.( )historical allusion.( )religious allusion. What should we do that so that we dont need to lose democracy and can move toward to economic growth?? Daphne's teacher told her that the standardized score for her history exam, as compared to the other students in the course, is 2.50. Which of the following is the best interpretation of this standardized score? A. Daphne's test score is 2.50.B. Daphne's test score is 2.50 times the average test score of students in the course.C. Daphne's test score is 2.50 standard deviations above the average test score of students in the course.D. Daphne's test score is 2.50 above the average test score of students in the course. E. None of the above gives the correct interpretation. How are hurricanes and tornadoes different?Choose the evidence from "Wind" that best answers the question.a.Hurricanes last a few minutes. Tornadoes continue for days.b.Hurricanes begin over water. Tornadoes start over land.c.Hurricanes are narrow. Tornadoes are can be miles wide.d.Hurricanes are unpredictable. Tornadoes can be predicted. Fill in the blank in the following sentence with the appropriate punctuationmark below. Where English uses a comma to mark places of higher numbers,French uses aA. period.B. asterisk.C. hyphen.D. apostrophe. 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It would stay the same. It would increase. It would fluctuate. It would decrease. Is the gravitational force between the two objects attractive, repelling, or both? Explain how you know. On a 10 kg cart (shown below), the cart is brought up to speed with 50N of force for 7m, horizontally. At this point (A), the cart begins to experience an average frictional force of 15N throughout the ride.Find: a) The total energy at (A)b) The velocity at (B)c) The velocity at (C)d) Can the cart make it to Point (D)? Why or why not?