5) When rain falls to the earth, it just doesn't sit there. Instead, the rain water starts moving. Some of the precipitation seeps into the ground to replenishing groundwater. However, most of
it flows downhill as runoff. Runoff is important in filling rivers and lakes, but it also changes the landscape by erosion and can be a powerful mover. Flowing water is a powerful force,
capable of moving boulders and carving out canyons. Runoff has an impact on streams and rivers, but it also has an impact on the ocean system. What can you infer about the impact of
runoff on Ocean life? Choose ALL that apply.
A) Runoff drops a lot of sediment in the ocean, decreasing salinity.
B) Runoff builds up the coastline, depositing sediment, disrupting habitats of marine wildlife.
Runoff can lead to overgrowth of algae that can cause oxygen deprivation and create a dead zone.
D) Runoff carries pollutants into the ocean, causing illness and death of vulnerable marine populations.
) Runoff can carry bacteria, viruses and other pathogens from pet and livestock waste that can harm shellfish and other marine organisms.

Answer:

Respiratory gas exchange

Explanation:

The frequency of the infrared wave at the given speed and wavelength is [tex]5.5 \times 10^{13} \ Hz[/tex].

The given parameters;

The frequency of the infrared wave is calculated by using wave equation as shown below;

v = fλ

where;

[tex]f = \frac{v}{\lambda} \\\\f = \frac{3\times 10^8}{5.5 \times 10^{-6}} \\\\f = 5.5 \times 10^{13} \ Hz[/tex]

Thus, the frequency of the infrared wave at the given speed and wavelength is [tex]5.5 \times 10^{13} \ Hz[/tex].

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Answer:

The ans is : A. Electron, proton, hydrogen atom, helium atom.

An atom consist of sub atomic particles. The order of particles from least massive to most massive is electron, proton, hydrogen atom, helium atom. The correct option is A.

The particles which are smaller in size than the atom are known as the sub atomic particles. An atom generally contains three sub atomic particles, they are protons, electrons and neutrons. The electrons revolve around the nucleus whereas the protons and neutrons are present at the center of the nucleus.

The protons are positively charged particles whereas the electrons are negatively charged. The neutrons are chargeless. The atomic number of 'H' atom is 1 and that of 'He' atom is 2.

The mass of e⁻ is 9.1 × 10⁻³¹ kg, proton is 1.67 × 10⁻²⁷ kg, 'H' atom is 1.66 × 10⁻²⁴ g, 'He' is 4 g. Thus the order is:

electron, proton, hydrogen atom, helium atom

Thus the correct option is A.

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Considering the definition of ionization energy, the highest ionization energy belongs to the element:

a. Be

b. Ar

c. Cl

Electrons are held in atoms by their attraction to the nucleus, which means that energy is needed to remove an electron from the atom.

You should keep in mind that the electrons of the last layer are always lost, because they are the weakest attracted to the nucleus.

Ionization energy, also called ionization potential, is the necessary energy that must be supplied to a neutral, gaseous, ground-state atom to remove an electron from an atom. When an electron is removed from a neutral atom, a cation with a charge equal to +1 is formed.

In a group, the ionization energy increases upwards because when passing from one element to the bottom, it contains one more layer of electrons. Therefore, the valence layer electrons, being further away from the nucleus, will be less attracted to it and it will cost less energy to pluck them.

In the same period, in general, it increases as you shift to the right. This is because the elements in this way have a tendency to gain electrons and therefore it will cost much more to tear them off than those on the left which, having few electrons in the last layer will cost them much less to lose them.

Considering all the above, from each of the pairs, the highest ionization energy belongs to the element:

a. Be

b. Ar

c. Cl

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To solve this, we have to turn the moles into atoms:

2.5 moles/1 x 6.022x10^23 atoms/1 mole = 15.05 x 10^23 atoms

Answer: 15.05 x 10^23 atoms

I hope this helps!

Silicon is the eighth most abundant element in the Universe. There will be 15.05 * 10²³ atoms in the silicon.

Silicon is the eighth most abundant element in the Universe; it is made in stars with a mass of eight or more Earth suns.

Near the end of their lives these stars enter the carbon burning phase, adding helium nuclei to carbon to produce oxygen, neon, magnesium and silicon.

1 mole contains  6.022x10²³ atoms.

2.5 mole contains = x atoms.

x= 2.5 moles/ 6.022x10²³ atoms.  

  = 15.05 x 10²³ atoms

Therefore, Silicon is the eighth most abundant element in the Universe. There will be 15.05 * 10²³ atoms in the silicon.

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Explanation:

each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter. Each element is distinguished by its atomic number, i.e. the number of protons in the nuclei of its atoms.

Answer:

5,000

Explanation:

When rounding to the thousands place, you look at the digit in the hundreds place, if the digit is less than 5 you round down. For example if the number was "4,456," we would round to "4,000." But, since the digit in the hundreds place is 7, which is greater than 4, you round up to "5,000."

Answer:

condensation

Explanation:

going from gas to luquid

Answer:

condensation your welcome :)

Explanation:

wow 50 points for this??? TYSM!!!

Answer:

The color or hue of light depends on its wavelength, the distance between the peaks of its waves. The brightness of light is related to intensity or the amount of light an object emits or reflects. Brightness depends on light wave amplitude, the height of light waves.

Explanation:

Hope this helps.

Frequency – The frequency of a wave is the number of waves that pass a given point in a certain amount of time. Frequency is measured in units called hertz (Hz), and is defined as the number of waves per second. A wave that occurs every second has a frequency of 1 wave per second (1/s) or 1 Hz.

Answer:

The ribosome contains three grooves which are sites for the tRNA. The first codon is AUG, which is called a "start codon". ... So, the tRNA that has the anti-codon sequence of UAC carrying the amino acid Met bonds to the mRNA codon. Another tRNA bonds to the next codon in the next groove with the next amino acid

Answer:

C. sorry if I'm wrong ...................

Answer: Atom

..............................................

Answer:

A tendon is a fibrous connective tissue that attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure.

Explanation:

24 electrons.............

Answer:

It depends on the atom, or more specifically, on the size of its nucleus. There is a competition between the electrical repulsion of the protons (that drives the nucleus apart) and the attraction of the protons and neutrons (due to chromodynamics). For nuclei above a certain size, the repulsion tends to win

Explanation:

hope this helps

Por definición de enlace iónico, covalente y regla del octeto, la relación existente entre la teoría del octeto de Lewis con los enlaces iónicos y  covalentes es que dichos enlaces se producen con el objetivo de completar la última capa de electrones y adquirir estabilidad.

Por un lado, se produce un enlace iónico entre átomos metálicos y no metálicos, donde los electrones se transfieren completamente de un átomo a otro. Durante este proceso, un átomo pierde electrones y otro los gana, formando iones. Por lo general, el metal cede sus electrones formando un catión al elemento no metálico, que forma un anión.

Por otro lado, el enlace covalente es el enlace químico entre átomos donde los electrones se comparten, formando una molécula. Se establecen enlaces covalentes entre elementos no metálicos. El par de electrones compartidos es común a los dos átomos y los mantiene unidos.

En ambos casos se cumple con la regla del octeto, que establece que los átomos de los elementos se enlazan unos a otros en el intento de completar su capa de valencia con ocho electrones. Es decir que los átomos van a tender a ceder o compartir electrones para completar ocho electrones en la capa de valencia mediante un enlace iónico, covalente o metálico.

En otras palabras, el objetivo es tener la configuración electrónica del gas noble más cercano, teniendo así la última capa de electrones completa y adquiriendo estabilidad.

En resumen, la relación existente entre la teoría del octeto de Lewis con los enlaces iónicos y  covalentes es que dichos enlaces se producen con el objetivo de completar la última capa de electrones y adquirir estabilidad.

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Answer:

it D because it make more sense

Answer:

atomic number

Explanation:

The periodic table is a table that lists all of the chemical elements in order of atomic number, starting with hydrogen and ending with oganesson. The number of protons in the nucleus of an atom of a certain element is its atomic number.

Have a good day :)

Answer:

Circulatory System

Explanation:

what describes “Al” is chemical Symbols.

It is not atomic mass because atomic mass is the quantity of matter contained in an atom of an element.

It is not atomic number because it's the number of proton in an atom of an

element.  

The above description "Al" is a chemical symbols.

Chemical symbols are used to represents elements in the periodic table.

The element represented is aluminium.

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Answer is: the partial pressure of the hydrogen 500 mmHg.

p(total) = 523.8 mmHg.

p(water) = 23.8 mmHg.

p(total) = m(water) + p(hydrogen).

p(hydrogen) = p(total) - p(water)..

p(hydrogen) = 523.8 mmHg - 23.8 mmHg.

p(hydrogen) = 500 mmHg.

mmHg or millimeter of mercury is a manometric unit of pressure.

Answer:

cm^3 —> dm^3

divide by 1000

159.5 — Mr of CuSO4

n (moles in mol) = c (concentration in mol/dm^3) * v (volume in dm^3)

0.100 mol of CuSO4 dissolved in 0.5dm^3 of water

calculate for mass of CuSO4 dissolved in 0.03dm^3  (30cm^3) of the solution

n = m/Mr

m = n*Mr

if 0.1 mol is dissolved in 0.5 dm^3 of water

0.5/0.03 ≈ 16.66666667

0.1 = 0.05

0.1 / 16.66666667 = 0.006

0.5 / 16.66666667 = 0.03

0.006 (mol of CuSO4) = 0.03 (dm^3 solution)

0.006 * 159.5 = 0.957 g

I think this is the answer

The mass copper sulphate CuSO₄ in 30ml solution is 957.6g.

To determine the mass of copper sulphate in the given solution, compare both the molarity given  

M₁V₁=M₂V₂

n₁/V1=n₂/V2

0.1/0.5=n₂/30         cm³=ml

n₂=6 moles

6×159.5=957.6g

Multiply the calculated moles with the relative mass/molecular mass to get the mass of CuSO₄.

hence, the mass of CuSO₄ is 957.6g

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Answer:

Mass and gravitational for e is not relart

According to the concept of solubility, boiling water and then adding sugar to it will take longer time to dissolve than adding water and sugar together to boil as thermal energy requires to dissolve sugar will be less.

Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.

The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.Concept of solubility is not valid for chemical reactions which are irreversible. The dependency of solubility on various factors is due to interactions between the particles, molecule or ions.

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Answer:

The edge of boiling over of the substance relies upon the strength of holding between the particles, unequivocally the intermolecular powers between the atoms. The intermolecular powers that exist between the particles relies upon the idea of the atoms like extremity, sub-atomic weight, design of the atom, and so forth In testing the edge of boiling over of the two given fluids, the expansion in edge of boiling over can be noticed for the compound with higher limit. This demonstrates that there is lower intermolecular power in the compound with lower atomic weight.

Explanation:

Hope this helps

The strength of holding between the particles, namely the intermolecular forces between the atoms, determines the substance's edge of boiling over. The intermolecular forces between the particles depend on concepts related to atoms, such as extremities, sub-atomic weight, atom design, and so on.

Each atom is made up of a nucleus and one or more electrons that are linked to it. One or more protons and a significant number of neutrons make up the nucleus. Only the most prevalent type of hydrogen is neutron-free. Atoms that are neutral or ionized make up every solid, liquid, gas, and form of plasma.

But when it comes to the name atom, we must travel back to 400 B.C. ancient Greece. The Greek word atomos, which meaning "uncuttable," was proposed by Democritus, a renowned philosopher. In the end, all matter could be reduced to distinct, tiny particles, or atomos, he said.

When the two supplied fluids' edges of boiling over are tested, the compound with the greater limit exhibits an expansion in the edge of boiling over. This illustrates that the compound with a lower atomic weight has a lower intermolecular power.

Thus,The intermolecular forces between the particles depend on concepts related to atoms.

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Answer:an amino acid

Explanation:

For me this was the correct answer on a castle learning