Answer:
Water.
Explanation:
it can dissolve more substances than any other liquid.
Select from the unit conversion factor options below to determine the mass in grams of 1.204 × 1024 atoms of carbon.
1 mol C/ 6.02 x 1023 atoms C, 6.02 x 1023 atoms C / 1 mol C
12 g C / 1 mol, 1 mol / 12 g C
a
12040 g
b
24 g
c
204 g
d
1.99 g
Answer:
option a is the answer
Explanation:
bye bye
During an investigation, a student mixes two liquids in a beaker. The student recorded the following observations in her science notebook.
I. Both liquids are clear prior to mixing.
II. Both liquids are room temperature prior to mixing.
III. The liquid turned pink when mixed.
IV. The temperature of the liquid increased.
V. Over time, a white solid formed at the bottom of the beaker.
Required:
What are evidence of a chemical reaction?
Answer:
3, why because most of the time chemicals reacts within eachother to make new compound that's may lead the liquid chemicals to deflect some of the spectrom of light like red,yellow,blue
To solve such this we must know the concept of chemical reaction. There are so many ways to identify the chemical reaction. Therefore the correct options are option 3, 5.
What is chemical reaction?Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved that is mass can nether be created nor be destroyed in a chemical reaction.
There are so many types of chemical reaction reaction like combination reaction, double displacement reaction. The evidence of a chemical reaction are "the liquid turned pink when mixed" and "over time, a white solid formed at the bottom of the beaker".
Therefore the correct options are option 3, 5.
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answer this bs for me pls
Answer:
B.chlorine ,Cl2 is the one
has an atomic number of 1.
There are many with atomic number 1
hydrogen , helium , lithium , beryllium etc.
Hope this answer helps you dear!.
Answer:
With atomic number 1 is hydrogen
Explanation:
The valence with 1 is hydrogen, lithium.....
Does the amount of mentos affect the height of the pop explosion
Answer:
no
Explanation:
bcuz science
Answer:
The more mentos you put in a bottle of pop does not necessarily mean a larger explosion. The max amount of mentos with the largest explosion was 4 mentos, it went 350 cm high. With 5 or 6 mentos the explosion went only 330 and 310 cm high.
Hope this helped in some way?
2. What problem did astronaut Eugene Cernan encounter while on an EVA? How did it relate to
Newton's third law of motion?
Answer:
Well he couldn't be pushed back as there isn't a place for him to float back, because of Newton's third law: Every force has an opposite force when Eugene pushes, he will float backwards
Explanation:
Hope this helps!
How many molecules does 1 mole of Oz gas have?
awnser : 6.02×1023 molcules
How many molecules are present in this formula? 3H2 (SO)4
Molecules are formed when two or more atoms chemically bond together. In 3H₂(SO)₄, three molecules are present.
What are molecules?Molecules are the smallest unit present in any compound and are formed by a group of atoms. A number denoted in front of the chemical species is the coefficient that represents the number of molecules.
The coefficient present in front of the reactant or the product in a chemical reaction gives the number of the molecules present in a compound. As three is denoted in front of the sulphuric acid, hence will be the number of the molecules.
Therefore, there are three molecules present in sulphuric acid.
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explain why nitrogen diffuses faster than clorine
Write method of manufacturing of oxygen gas from liquid air
Answer:
cryogenic distillation process
Explanation:
Cryogenic distinction between carbohydrates and harmon process.
Saliva, produced by glands in the mouth, plays an important role in the digestion of food. Saliva contains a chemical, called amylase, that breaks down starch in the food we eat. A scientist conducts an experiment to investigate at which temperatures amylase works the best. He hypothesizes that the reaction will occur fastest if the amylase reaction is conducted near the normal human body temperature of 37ºC (degrees Celsius). In order to test his hypothesis, the scientist measures the reaction rate, which is how fast the amylase breaks down the starch at six different temperatures. The reaction rate is rated on a scale of 0 to 10, with 0 meaning no reaction and 10 meaning the fastest reaction. The results are recorded in the data table.
AMYLASE REACTION RATE BY TEMPERATURE
Temperature (ºC)
Reaction Rate
0
2
20 4
40 10
60 8
80 2
100 0
Based on the data, should the scientist accept or reject his hypothesis?
Answer:
The digestive functions of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily. Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.
Explanation:
What type of energy does a person experience when jumping on a trampoline?
A.) elastic potential
B.)all of these
C.) gravitational potential
D.)kinetic
Answer:
Knetic
Explanation:
When you jump on a trampoline, your body has kinetic energy that changes over time. As you jump up and down, your kinetic energy increases and decreases with your velocity. Your kinetic energy is greatest, just before you hit the trampoline on the way down and when you leave the trampoline surface on the way up.
If I remove the table from under the book, what will happen to the book? Think about Newton’s second law of motion. Is there an acceleration? What caused the acceleration?
Newton’s second law of motion is a dot product of mass and acceleration, if you remove the table from, under the book, gravity will act on the book and pull it downwards to the centre of the earth
Newton's Second law of motion states that "the acceleration of an object depends upon two variables – the net force acting on the object and the mass of the object."
In our case the mass of the book and the force of gravity
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noble gases are used in many situations where a safe and constant environment must be maintained. for example, helium is used to provide a protective atmosphere for making fiber optics and semiconductors. argon is used to fill incandescent and flourescent light bulbs to prevent oxygen from corroding the hot filament. why are noble gases used in these situations?
Answer:
Because they do not naturally react with other elements
Explanation:
Since noble gases do have a fulfilled valence shell, they do not react with other elements because they're already stable by the themselves.
Concentracion de las siguientes soluciones
Answer:
wwwwwwwwww
Explanation:
A 12.17 g sample of a compound contains 7.77 g of iron, Fe, 1.44 g of phosphorus, P, and oxygen, O. Calculate the empirical formula for the compound.
Answer:
Fe₃PO₄
Explanation:
They have given the total mass of the compound, the mass of iron and the mass of phosphorus. So we can find the mass of oxygen.
Mass of oxygen = 12.17 - (7.77 + 1.44) = 2.96g
So we can now find the empirical formula.
Element - mass - Mr - Mass÷Mr - Ratio - Simplest Ratio
Fe - 7.77g - 55.8 - [7.77÷55.8] - [0.14÷0.05] - 2.8 = 3
P - 1.44g - 31 - [1.44÷31] - [0.05÷0.05] - 1
O - 2.96g - 16 - [2.96÷16] - [0.19÷0.05] - 3.8 = 4
[The simplest ratio was obtained by dividing the answer of mass÷mr with the smallest value. Phosphorus had the smallest value of mass÷mr=0.05, so all other answer were divided by 0.05]
Emperical formula = Fe₃PO₄
state one cause of temporary hardness of water
Answer:
Temporary hardness of water is caused when thermally unstable chemicals like magnesium hydrogen carbonate and calcium hydrogen carbonate are dissolved in water. Temporary hardness is treated by heating the hard water.
Hope that helps. x
how do particles in the most rigid state of matter move
Explanation: In solids, particles are very closely packed in an orderly arrangement in a lattice and only vibrate in fixed positions. The forces of attraction between them are very strong. This allows them to overcome the forces of attraction that hold the other phases closer together
Oxygen-Carbon Dioxide Exchange
Place the statements in the correct
order.
1. heart pumps oxygen-
rich blood to the body
2. carbon dioxide moves
from bronchioles to bronchi
3. air moves through the
bronchi into the bronchioles
4. blood picks up carbon
dioxide from the body
5. INHALE
6. alveoli receive oxygen
to pass to blood
7. heart pumps carbon
dioxide rich blood to the
lungs
8. nose traps germs in air
9. oxygen passes into the
blood
10. air moves down the
trachea
11. alveoli receives carbon
dioxide from the blood
12. oxygen-rich blood flows to
the heart
13. carbon dioxide flows up
the trachea
14. EXHALE
15. carbon dioxide flows out
the nose and mouth
Answer:
Answer is below with the steps in order
Explanation:
4) Blood picks up carbon dioxide from the body
7) Heart pumps carbon dioxide rich blood to the lungs
8) Inhale
9) Nose traps germs in air
10) Air moves down the trachea
3) Air moves through bronchi into the bronchioles
6) Alveoli receive oxygen pass to blood
9) Oxygen passes into the blood
11) Alveoli receives carbon dioxide from the blood
12) Oxygen-rcih blood flows to the heart
3) Carbon Dioxide moves from bonchioles to bronchi
13)Carbon dioxide flows up
1) Heart pumps oxygen-rich blood to the body
The last four of five steps could be switched up a little bit since it all happens synchronously, but this is the most accurate interpretation.
The statements in the correct order are:
4) Blood picks up carbon dioxide from the body7) Heart pumps carbon dioxide-rich blood to the lungs8) Inhale9) Nose traps germs in the air10) Air moves down the trachea3) Air moves through bronchi into the bronchioles6) Alveoli receive oxygen pass to blood9) Oxygen passes into the blood11) Alveoli receives carbon dioxide from the blood12) Oxygen-rcih blood flows to the heart3) Carbon Dioxide moves from bonchioles to bronchi13)Carbon dioxide flows up1) Heart pumps oxygen-rich blood to the body.Oxygen-Carbon Dioxide ExchangeThe lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.
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I hope you can see because I really need help! I’ll give you 5 stars!
Answer:
In the picture A kettle is boiling water and evaporating it we can see the water vapours coming out of the kettle and there is a paper on top of the kettle from where the water vapours are coming out .
Explanation:
is this right ?? i hope it helps
pls help :)))))))pop
Answer:
c-a-b
Explanation:
giving brainliest, more chemistry questions being uploaded
Answer:
We have the atoms, and we have the molar mass of Vanadium (listed in the periodic table) which should be 50.94g/mol.
The first step is to convert the 4.18 x 10^23 atoms into moles by dividing the atoms by Avogadro's number (6.02 x 10^23)
(4.18 x 10^23)/(6.02 x 10^23) = 0.694 moles
Now we know that moles is equal to the mass divided by the molar mass. So now that we have the moles and the molar mass of Vanadium, we can rearrange the equation to find mass. Once you have rearranged it, you have to multiply the moles by the molar mass.
So 0.694 moles x 50.94g/mol = 35.35g of V
what happens to glucose in the body?
After your body has used all the energy it needs, leftover glucose is stored in the liver and muscles. We can store enough fuel for about a day, if you haven't eaten in a while, your blood glucose level drops. :)
Hope this helps!
13. A natural flow of groundwater that has
reached the surface is a(n)
a. spring.
c. aquifer.
b. well.
d. travertine.
A natural flow of ground water that has reached surface level is call a spring.
Water moves underground downward and sideways, in great quantities, due to gravity and pressure.
A spring is the result of an aquifer being filled to the point that the water overflows onto the land surface. They come in different sizes, from intermittent seeps, which flow only after much rain, to huge pools flowing hundreds of millions of gallons daily.
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The ribosomes of plant cells are sites for the synthesis of
(a) ATP (b) nucleic acids (c) sugars (d) proteins
Answer:
Proteins
Explanation:
Their Function Formation Encoded in mRNA into polypeptide chains of amino acids that produces protein
The ribosome of plant cells are sites for the synthesis of proteins. The correct option is (d).
What are ribosomes?Ribosomes are organelles that take part in the synthesis of proteins. The prokaryotic cell's ribosomes are smaller than the eukaryotic cell's ribosomes.
Currently, ribosomal RNA is a component of the cell's ribosome or protein-building machinery. The process of making proteins, or translation, is carried out by ribosomes.
The ribosome, which translates the genetic code generated in mRNA into an amino acid sequence, is universally responsible for protein synthesis. The two ribosomal subunits, small and big, come together to form the full ribosome, which is used to produce proteins.
Therefore, the correct option is (d) proteins.
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What is an active metal?
A. a metal that reacts with oxygen
B. a metal that is above hydrogen in the activity series
C. a transition metal
D. a metal with only one valence electron
Answer:
A metal is said to be an active metal when it reacts strongly and quickly with other elements due to the electrons in its structure and its ease of sharing the electrons with other elements. ... A metal's reactivity increases as we go from the top to the bottom of the periodic table.
Explanation:
which of the following types of radiation can be blocked with only a sheet of paper?
beta decay, gamma decay, they are equally dangerous, alpha decay
Answer:
Alpha decay
Explanation:
Alpha decay can be blocked with only a sheet of paper.
Extra info : -
In general, alpha particles have a very limited ability to penetrate other materials. In other words, these particles of ionizing radiation can be blocked by a sheet of paper, skin, or even a few inches of air.
Hello there!
Alpha decay can be blocked with only a sheet of paper.Gamma rays can only be blocked with something thick and dense.Beta rays can be blocked with something less dense, but thicker than paper.Hope this helps. Let me know if you have any questions.
~GracefulGirlie :)
Good luck on your assignment.
What do Cl-35 and Cl-36 have in common?
Answer:
they have same atomic number as they are the same element & electrons
Answer: they both have the atomic (proton number) as they are the same element hence they also they have the same number of electrons. Therefore they have similar chemical properties, as the electrons determine the chemical property of an element.
Explanation: The numbers 35 and 37 are the mass numbers for the two isotopes of chlorine. They both have the same atomic number (proton number ) as they are the same
how many fluid ounces can i take on a plane united
Which example accurately describes a solution?
Typical examples of solutions are
Alcoholic beverage (ethanol in water)GasolineWhat is a solution?A solution can be defined as a mixture (homogeneous) of two or more substances typically a solute in a solvent, the solvent is usually in greater quantity and the substance or substances present in lesser amounts are the solutes.
Other good examples of a solutionCommon examples of solutions are sugar in water and salt in water solutions, soda water,
Furthermore, solutions can be homogenous or heterogenous
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