Answer:
6 Energy levels
Explanation:
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 18
Fourth Energy Level: 25
Fifth Energy Level: 8
Sixth Energy Level: 2
Hope this helps.
What is the empirical formula of these molecules? Down below. Show your work.
censures hydrogen Oxygen
Answer:
v
3. If a sample of gas occupies 6.80 L at 325oC, what will its volume be at 25oC if the pressure doesn't change
Answer:
V2 = 3.39
Explanation:
V1/T1 = V2/T2
V1 = 6.80L
T1 = 325C (must be convert to K by + 273.15) = 598.15 K
T2 = 25C = 298.15 K
V2 =?
T2xV1/T1 = V2
298.15 x 6.80/ 598.15 = V2
3.39 = V2
So 3.39 is the answer!
I need help finding real life images of both prophase and interphase. I end up mixing them together
Answer:
the first picture is of prophase and the second one is interphase
Explanation:
please Mark as BRAINLIEST
A helium filled balloon has a pressure of 101 kPa and a temperature of 23 C. It is placed in a freezer where the temperature is 0 C. If the volume of the balloon remains constant, what is the new pressure of gas in the balloon?
Answer:
P2 = 0.91 atm
Explanation:
Using Gay-Lussac's Law for this question: P1/T1 = P2/T2
P1 = 101 kPa (dividing by 101.3 to convert to atm) = 0.99 atm
T1 = 23C (must be convert to Kelvin by plus 273.15) = 296.15K
T2 = 0C = 273.15K
P2 = ?
P1/T1 = P2/T2
(Multiply both sides by T2 to get rid of it).
273.15 x 0.99/296.15 = P2
P2 = 0.91 atm
According to the Law of Conservation of Matter _______.
a. No atoms are created or destroyed whenever matter undergoes a physical change but can when matter undergoes a chemical change.
b. Atoms are created but not destroyed whenever matter undergoes a physical or chemical change.
c. Atoms are destroyed but not created whenever matter undergoes a physical or chemical change Some atoms are created or destroyed whenever matter undergoes a physical or chemical change.
d. No atoms are created or destroyed whenever matter undergoes a physical or chemical change.
Answer:
A.
Explanation:
Matter is neither created nor destroyed unless it is acted upon by a chemical force/change.
Is H2O a compound, mixture or element? Molecule, mixture, compound, element.
Answer:
Compound
Explanation:
This is because it made up of two elements that's is hydrogen and oxygen in the ratio of 2:1 respectively
Answer:
Compound
Explanation:
H2O isn't on the periodic table so it's not an element. H2O isn't a molecule because it's water. H2O isn't a mixture because it can't be seperated. So, it must be a copound.
Why glucose and fructose produce same shaped products with phenylhydrazine?
During the reaction of glucose and fructose with excess phenylhydrazine to form osazone, only the C-1andC-2 atoms of glucose and fructose participate in the reaction. The rest of the molecule remains intact. Hence, glucose and fructose produce the same osazone.
Heavy rain and runoff can
A cause erosion
B cause flooding
C fill reservoirs
D all of the above
What is the difference between a nuclear and thermonuclear bomb.
Explanation:
the difference between a nuclear bomb and a thermonuclear bomb is that :
A nuclear bomb derives it's destructive force from nuclear reaction. That is,fission reaction, fusion reaction or both.
While thermonuclear bomb derives it's own force from a chain reaction in which isotopes of hydrogen combines under extremely high temperature to form helium under a process known as nuclear fusion.
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Explain the process that creates chemical elements lighter than iron, including evidence.
Answer:
. The authorities have closed the casino.(change in passive)
You have 40 g of NaCl in 530 g of water.
What is the freezing point?
Answer:
801 •C
Explanation:
Hope this helps! :)
Please mark brainliest if it helped!
What number of moles of aluminum is required to completely react with 3.20 moles of iron(III) oxide, Fe2O3 according to the following reaction?
SHOW YOUR WORK!!
Fe2O3 + 2 Al → 2 Fe + Al2O3
Answer: 6.40 moles
Explanation:
What is the wavelength of a light of frequency 4.47x10^14 Hz?
(It's 671 nm)
help please:)
how do the red blood cell's shape and size support its function
Answer:
The size of a red blood cell allows for more room to have more cells, The shape of a red blood cell allow it to trap and absorb oxygen
Explanation:
Red blood cells are very small, The shape of a red blood cell isn't just a sphere
Use the image to rank the colors from the color that will refract the least to the color that will refract the most.
Least
Most
Answer:
Violet is most likely to refract, while red is least likely to refract
Explanation:
The wavelengths :)
Dispersion states that the shorter the wavelength of the light/color, the more it is refracted. Because of this, the red light is less likely to refract while violet light is most likely to refract
The two reactions illustrated in the diagrams below often occur when a foreign substance enters the body.
Foreign substance
Specific proteins
©
Y
produces
Cell A
Cell B
4. The specific proteins produced by cell B, would most likely be:
1. Antigens
2. Antibodies
2. Allergens
3. Amino Acids
The specific proteins produced by cell B in response to the foreign substance are antibodies.
What are antibodies?Antibodies are specific proteins produced by the immune cells of the body in response to a foreign substance called antigen which produces the immune response.
Antibodies are released by immune cells such as B cells.
The antibodies bind to antigen and tag them for destruction by phagocytes.
Therefore, cell B will produce antibodies.
Learn more about antibodies at: https://brainly.com/question/15382995
The type of intermolecular force present in I2, Br2, and Cl2 is:
a. london dispersion
b. dipole dipole
c. hydrogen bond
d. metallic
explain why
Answer:
d metallic is the sum of the following is not a primary function of the following method
Consider the reaction below. 2c6h14 19o2 right arrow. 12co2 14h2o how many moles of hexane (c6h14) must burn to form 18.4 mol of carbon dioxide? 1.53 mol 3.07 mol 110. mol 175. mol
3.07 moles of hexane must burn to form 18.4 moles of carbon dioxide.
What is moles?Moles of any substance is define as the ratio of the given mass to the molar mass of that substance.
Given chemical reaction is:
2C₆H₁₄ + 19O₂ → 12CO₂ + 14H₂O
From the stoichiometry of the reaction, it is clear that:
2 moles of C₆H₁₄ = produce 12 moles of CO₂
1 moles of CO₂ produced by = 2/12 moles of C₆H₁₄
18.4 moles of CO₂ produced by = 1/6×18.4=3.07 moles of C₆H₁₄
Hence, option (2) is correct i.e. 3.07 moles.
To know more about moles, visit the below link:
https://brainly.com/question/1464305
Two white powders are mixed in a flask the bottom of the flask feels cooler this is an example of what kind of reaction?
How do you test for carbon dioxide ?? Explain
Answer:
Carbon dioxide reacts with calcium hydroxide solution to produce a white precipitate of calcium carbonate
Explanation:
. Limewater is a solution of calcium hydroxide. If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white
What are the uses of Diamonds?
your own answer
please help
Answer:
Diamonds are very important in our daily lives ,so therefore it has many uses
1.They are used ad beauty products
2.They are used in automative industry
3.They are used in making windows
4.They are used as medicine
Describe how the mol- ecule whose formula is NO is different from the molecule whose formula is N 2 O.
Answer:
No, it's a molecule that contains one nitrogen atom and one oxygen atom. This is in contrast to N 2 O, which consists of two nitrogen atoms and one oxygen atom.
Aluminum has a density of 2.70 g/cm 3 . Boron has a density of 2.08 g/cm 3 . Predict the density of gallium. Explain your answer.
Answer:
dohsf approval all or pow
Explanation:
Name the different groups of metals. Name an element with each group.
Answer:
alkali metals, alkaline earth metals, transition metals, basic metals, lanthanides (rare earth elements), and actinides.
Explanation:
Which chemical compound is added to natural gas to safely detect leaks in pipelines and appliances?.
Answer:
Mercaptan is the additive that is added to natural gas to make it easier to detect in case of a leak. The most important thing to know about mercaptan is that it stinks. Some people compare it to the smell of rotten eggs.
Explanation:
How many moles are in 3.5 of “K”?
Explanation: i don't know how can i know the moles in element?
A weather map of Chicago with a high pressure system and warm front. Based on the weather map, what might the upcoming weather be like in Chicago? Warm, dry, clear skies Warm, humid, possible thunderstorms Cold, dry, clear skies Cool, humid, possible thunderstorms.
A weather map of Chicago with a high pressure system and warm front, so the upcoming weather be Warm, dry, clear skies in Chicago.
What is high pressure of air?High pressure of air tries to compress the gas from upper atmosphere to lower atmosphere.
When any gas has high pressure then it sinks towards the land from the upper atmosphere, and at the upper part air gets cool and form water vapor. When air comes towards the land then, it becomes warm and dry as it doesn't participate in the formation of precipitate. Due to which we are able to see clear sky at the dry days.
Hence, option (1) is correct i.e. Warm, dry, clear skies are the upcoming weather.
To know more about pressure of air, visit the below link:
https://brainly.com/question/441281
Answer:
A. Warm, dry, clear skies
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Is boiling a chemical reaction?
Answer:
yes, because water is reacting with air and heat and creating a boiling effect.
Explanation: kracken doge
Answer: Freezing and boiling are considered to be examples of chemical reactions. This depends on their conception of substance. If students regard ice as a different substance from liquid water they are likely to classify the melting of ice as a chemical change.
Explanation:
Boiling water, boiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water (H2O). No, boiling water is NOT a chemical reaction, but it is a physical change.
Find the number of molecules and number of each type of atom of 0. 04 moles of H2C2O4
answer
Explanation: i think 0.49
What causes water droplets to form on the outside of a glass?
Answer:
under me :)
Explanation:
There is water vapour present around us. When you put cold glass on a table, the water vapour comes in contact with the glass, and condenses, forming water droplets which are seen around the glass. Hope this helps