Answer:
yes
Explanation:
CO2 is soluble because water molecules are attracted to these polar areas. The bond between carbon
Match the items to use the analogy of time to the vocabulary of chemistry.
Answer:
1 year- 1 mole
time in general- amount of matter
1 second- 1 atom/ particle
Answer:
1 Year => 1 Mole
Time in General => Amount of Matter
1 Second => 1 Atom/Particle
Explanation:
These pairs make the most sense.
Hope it helps!!!
A picture of a patient’s lung showed it to be shriveled and darker than usual.
Which is most likely the cause of this lung condition?
A. smoking
B. overeating
C. sickle cell anemia
D. poor refrigeration
Answer:
Smoking
Explanation:
It has been proven time and time again to ruin lungs, effectively shortenning ones lifespan.
Explanation:
Smoking, because smoking causes these types of symptoms in long time smokers and people who start to smoke. also I know the answer cause my dad's a nurse.
Can someone help me please
Static electricity is produced when _____.
atoms gain protons
atoms gain or lose electrons
atoms lose neutrons
electrons move through materials
Answer:
Atoms gain or lose electrons
Explanation:
The frequency of the musical note F3 is 1.85 102 hertz. What is its period?
A 5.40 x 10-3seconds
B. 1.05 x 10-3 seconds
C. 3.09 x 10-3 seconds
D. 5.31 x 10-1 seconds
Answer: 0.0054 s
Explanation: There is an inverse relation between the frequency and the period of a wave (a sound wave in this case):
T=1/F
Where f = 1.85 (10)² H z
Hence : T = 1/1.85 (10)² H z T =0.0054s
Select the answer choice that is arranged from smallest to largest.
Answer:
Im like 75% sure that the answer is C.
Explanation:
Hope this helps! Have a great day. Remember your amazing and you got this! Alycia <3
Which mass is made up of 6.02x10^23 atoms? none of these 23 g sodium 42 g krypton 24 g carbon 78 g potassium
Answer:
23 g sodium
Explanation:
In chemistry, one mol (1mol) of a substance equals Avagadro's number or constant (6.02 × 10^23 atoms/particles/molecules).
According to this question in which the mass of different elements were given, the mass of the element that equals 6.02 × 10^23
Using the formula; mole = mass/molar mass
- Sodium = 23g/23g/mol = 1mol
- Krypton = 42g/84g/mol = 0.5mol
- Carbon = 24g/12g/mol = 2mol
- Pottasium = 78g/39g/mol = 2mol
Therefore, from the above illustration, it can be observed that only 23g of sodium contains 1 mol, hence, 23g sodium contains 6.02 × 10^23 atoms.
nine families in orgo land 1)Halides:
(2) Alcohols:
(3) Ethers:
(4) Aldehydes:
(5) Ketones:
(6) Organic Acids: (aka - carboxylic acid)
(7) Ester:
Amines:
(9) Amides:
Folding and faulting are two examples of slow changes by which plate tectonics can shape Earth’s surface. Which of the following describes a difference between these two processes?
A. Folding is caused by circular movement of the plates around each other, while faulting causes pressure and heat to be reduced.
B. Folding begins with the fracturing of the rock, while faulting takes place when high heat and pressure are exerted horizontally.
C. Folding takes place when pressure and heat bend rock horizontally or vertically, while faulting begins with fracturing of the rock.
D. Folding is caused by forces of the plates found close to the surface of Earth, while faulting occurs through continental collisions deep within Earth.
Answer:
d
Explanation:
Answer:
D
Explanation:
Which of the following indicates that a chemical change has happened during cooking?
The food darkens.
Bubbles form in boiling water.
Energy is transferred from the stove to a pan.
Butter melts.
Answer:
The food darkens.
Explanation:
In plant cells, how are chloroplasts and mitochondria related?
Answer:
Mitochondria are the "powerhouses" of the cell, breaking down fuel molecules and capturing energy in cellular respiration. Chloroplasts are found in plants and algae. They're responsible for capturing light energy to make sugars in photosynthesis.
Which radioisotope requires long-term storage as the method of disposal, to protect living things from radiation exposure over time?
Pu-239
FR-229
Fe-53
P-32
Answer:pu-239
Explanation:
Pu-239 is regarded as the radioisotope requires long-term storage as the method of disposal, to protect living things from radiation exposure over time
Disposal of radioactive nuclear waste is often regarded as a problem.
The waste sources are:
Nuclear power reactors Bomb-related nuclear materialDisposal of bomb-grade plutonium is often difficult.
The longer lived isotopes are:
Plutonium-239 whose t1/2 is 24,110 years, Plutonium-240 whose t1/2 is 6,540 years, Curium-245 whose t1/2 is 8,500 years. etc.The storage of the longer lived elements is through containment for the next several thousand of years.
The control or management of radioactive waste is a hard, multifaceted procedure.
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A closed flask contains gas at STP. If the temperature is raised to 400 K what will the pressure be in atm?
Answer:
The answer is 1.5 atm
Explanation:
HELP ME ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Digestive
Explanation:
The Moon's gravity is ONE SIXTH of the Earth's gravity. If you weigh 60
Newtons on the Earth, what would you weigh on the Moon?
6 Newtons
60 Newtons
10 Newtons
360 Newtons
Thermal energy would naturally flow between objects at which temperatures?
O A. from 5°C to -5°C
OB. from 15°C to 15°C
OC. from 35°C to 45°C
OD. from -15°C to 15°C
Answer:
i think the answer is letter C. From 35°c to 45°c
Explanation:
sorry if it is wrong
in what kind of reaction do two or more substances combine
Answer:
The answer is synthesis reaction
Explanation:
Also known as a composition reaction, a synthesis reaction is a reaction in which two or more substances combine to form a new compound.
I copied and pasted the explanation part. But I hope the information is still helpful :)
so guys, on tt i posted a video of me dancing and doing tricks, and someone said its from yt. like no? I gave proof two times and I cant rn bc im in school ?? what should i do dont rpeort pls i need help
Just ignore them you dont need to send salty ppl proof of anything
Na2SO4(aq) + CaCl2(aq) --> CaSO4(s) +
2NaCl(aq) is an example of which type of
reaction?
decomposition
synthesis
single replacement
double replacement
Answer:
double replacement
Explanation:
Choose ALL that apply for NEAP tides Moon and Sun are at right angles to the Earth gravity of the Sun and Moon work against each other Moon, Sun, and Earth are in alignment smaller than normal range of highs and low tides
Answer:
i think it is..... smaller than normal range of highs and low tides
Moon and Sun are at right angles to the Earth
Explanation:
Moon and Sun are at right angles to the Earth and gravity of the Sun and Moon work against is the right statement about NEAP tides.
What are tides?Tides are the cyclic deformation of water body occur due to external gravitational force.
NEAP tides are also known as small tides as their heights are not very much and this is occur due to opposite attraction of water towards the gravity of the sun and moon. As sun and moon are present in the right angle direction with respect to the earth.
Hence, option (1) & (2) is correct, i.e. gravity of sun and moon is opposite and they are present at the right angle to the earth.
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SOMEONE SMART HELP PLS!!
How many kernel electrons in Ne?
Answer:
I am pretty sure it has 10 kernel electrons!?!?!?
Hope this helps!!!
Have a great day!!! :)
2
3 4 5 6 7 8
9
The earth is the
planet from the Sun, which is just the right distance for life to utilize the Sun's power and energy
O first
O second
O third
O fourth
Answer:
third
Explanation:
because it's the right distance for life to utilise the sun's power energy
What is the mass of 3.25 moles of sodium hydroxide (NaOH)?
Answer:
1 mole is equal to 1 moles NaOH, or 39.99711 grams.
Explanation:
Hope this helps have a nice day :)
The statement of the mass of sodium hydroxide (NaOH) is "130 g."
What is mass?A substance is something to do with mass that takes up space. The mass of a compound is the total amount of atoms present in grams that make up a molecule. The grams is the unit of mass.
In order to determine the mass in grams, multiply moles of the substance value by its molar mass to convert moles into grams.
Mole to gram conversion factor,
[tex]=\;given \;mole\;.\;\frac{grams}{1\;mol}[/tex]
Mass of NaOH comes out to be,
[tex]=\;3.25\;mol\;.\;\frac{39.997\;g}{1\;mol}[/tex]
= 129.99 g
= 130 g
Hence the correct answer is 130 g.
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Would the primary consumers, secondary consumers, or tertiary consumers have more total mass?
Answer:
primary
Explanation:
Clear sele 4. Which of the following statements is (are) true about antibiotic - resistant bacteria. (Click all that apply) A. Antibiotic resistance can sometimes be shared among bacteria. B. Mutation can cause antibiotic resistance, C. Bacteria that become resistant are an example of evolution D. Antibiotics killing bacteria while allowing mutated bacteria to live is an example natural selection. 5. Identitfy ONE difference between kingdoms Archaea and Bacteria.
Answer:
A. Antibiotic resistance can sometimes be shared among bacteria.
B. Mutation can cause antibiotic resistance.
D. Antibiotics killing bacteria while allowing mutated bacteria to live is an example natural selection.
Explanation:
Identifying: Archaea have cell walls that lack peptidoglycan and have membranes that enclose lipids with hydrocarbons rather than fatty acids (not a bilayer). ... Bacteria: cell membrane contains ester bonds; cell wall made of peptidoglycan; have only one RNA polymerase; react to antibiotics in a different way than archea do.
Hope this helps, I reported some answer that was absurd, not applicable, incomplete and confusing
Mutation can cause antibiotic resistance, Bacteria that become resistant are an example of evolution. Antibiotics killing bacteria while allowing mutated bacteria to live is an example natural selection The correct options are B, D, and C.
What are archaebacteria and bacteria?Archaea, like bacteria, lack interior membranes but have a cell wall and swim with flagella.
Archaea differ from bacteria in that their cell wall lacks peptidoglycan and their cell membrane contains ether linked lipids rather than ester linked lipids.
The dispersion of antibiotic resistance in pathogenic bacteria is a simple and elegant example of natural selection at work.
Bacteria can develop antibiotic resistance through mutations that alter antibiotic cellular targets or by acquiring dedicated resistance genes from other bacteria.
Antibiotic resistance can be caused by mutation; bacteria that become resistant are an example of evolution. Natural selection is demonstrated by antibiotics killing bacteria while allowing mutated bacteria to live.
Thus, B, D, and C are correct options.
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There are two suspects in a shooting investigation. Bullets are recovered from the crime scene. Both suspects own guns, and these guns have been seized by the police. How will the investigators check to see if one of these guns fired the found bullets?
Answer:
They can check if one of the bullets is gone if the gun was fully loaded or they can see if there is any particles of gun powder on the gun. I may be wrong.
How many moles of Iron (II) oxide are present in a 34.5 gram sample?
Answer:
0.609 Is the answer.
Explanation:
I hope this helped
Cecilia is combing her hair. She notices that her hair and the comb have developed an electric charge. What will happen when she holds the comb near a small, uncharged object?
Answer:
The object will become statically charged
Explanation:
Calvin goes for a walk outside and begins to sweat. His sweat will not evaporate. What is the most likely cause of this?
D. A wind speed of 40 mph
E. An air temperature of 7 °C or 45 °F
F. A strong northerly wind
G. A relative humidity of 95%
Answer:D
Explanation:it makes sense alot
Answer: D) A relative humidity of 95%
Explanation: