Can someone help me please

Answer:Static electricity can be created by rubbing one object against another object.

Explanation: This is because the rubbing releases negative charges, called electrons, which can build up on one object to produce a static charge

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:

Disposal of bomb-grade plutonium is often difficult.

The longer lived isotopes are:

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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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.

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

Answer:

The answer is 1.5 atm

Explanation:

Answer:

The object will become statically charged

Explanation:

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.

Answer:

I am pretty sure it has 10 kernel electrons!?!?!?

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Have a great day!!! :)

Answer:

Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons and electrons. The difference in the number of neutrons between the various isotopes of an element means that the various isotopes have different masses.

Answer:D

Explanation:it makes sense alot

Answer: D) A relative humidity of 95%

Explanation:

Answer:

Atoms gain or lose electrons

Explanation:

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 :)

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.

Answer:

primary

Explanation:

Answer:

A

Explanation:

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."

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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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

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.

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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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.

Answer:

The no. of moles of tungsten contains (4.8 x 10²⁵ atoms) = (1.0 mol) (4.8 x 10²⁵ atoms)/ (6.022 x 10²³ atoms) = 79.7 mol.

Explanation:

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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.

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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Answer:

third

Explanation:

because it's the right distance for life to utilise the sun's power energy

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!!!

Answer:

The food darkens.

Explanation:

Answer:

0.609 Is the answer.

Explanation:

I hope this helped