How many mL of a 0.375 M solution can be made from 35 g of calcium phosphate?

In the summer, decreased albedo due to less snow and ice cover leads to more radiation being absorbed by the Earth's surface, which is represented by the narrower outgoing radiation arrow on the left side of the diagram.

Solar radiation is the energy emitted by the sun in the form of electromagnetic waves. It includes a range of wavelengths, from ultraviolet (UV) to visible light to infrared (IR) radiation. Solar radiation is responsible for driving many of the physical and biological processes that occur on Earth. It provides the energy for photosynthesis in plants, powers the water cycle, and drives weather patterns and climate systems. It also influences the Earth's surface temperature and the distribution of heat and energy across the planet.

Here,

The total % reflected by the entire Earth is about 30%, meaning that approximately 30% of the incoming solar radiation is reflected back into space by the Earth's surface, clouds, and atmosphere.

The % absorbed from the sun by the whole Earth is about 70%, meaning that roughly 70% of the incoming solar radiation is absorbed by the Earth's surface, atmosphere, and oceans.

The total % leaving toward space is also approximately 70%, which is the same as the % absorbed from the sun. This is due to the principle of energy balance, which states that the amount of energy absorbed by the Earth must be equal to the amount of energy radiated back into space.

The number that best represents the greenhouse effect is the difference between the total % absorbed by the Earth (70%) and the % leaving toward space (70%), which is 0%. This indicates that the greenhouse effect traps some of the outgoing radiation and prevents it from escaping into space.

To increase the reflected energy, several things could be changed, including increasing the albedo (reflectivity) of the Earth's surface by increasing the amount of snow or ice cover, reducing the amount of clouds in the atmosphere, or reducing the amount of greenhouse gases that absorb and re-emit outgoing radiation. Depending on the specific change, it could lead to cooler temperatures if more radiation is reflected, or warmer temperatures if more radiation is absorbed.

If the percentage of outgoing energy absorbed by clouds, water vapor, and CO2 increased, it would lead to a stronger greenhouse effect and potentially warmer temperatures. This is because these substances absorb and re-emit outgoing radiation, preventing it from escaping into space.

As the seasons change, the diagram above will vary in several ways. In the winter, the amount of solar radiation received by the Northern Hemisphere is reduced, leading to cooler temperatures and less incoming radiation. This is represented by the narrower incoming radiation arrow on the left side of the diagram. In addition, the amount of snow and ice cover in the Northern Hemisphere increases, which increases the albedo and reflects more radiation back into space. This is represented by the wider outgoing radiation arrow on the left side of the diagram. In the summer, the opposite occurs, with more solar radiation received by the Northern Hemisphere, less snow and ice cover, and a narrower outgoing radiation arrow on the left side of the diagram.

Changes to albedo in winter and summer affect specific areas of the diagram above. In the winter, increased albedo due to snow and ice cover in the Northern Hemisphere leads to more radiation being reflected back into space, which is represented by the wider outgoing radiation arrow on the left side of the diagram.

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The  total reaction energy calculated by reactant bond energy - product

bond energy

The reactant bond energy is usually higher than that of the product bond

energy. This is as a result of the bonds in the product having higher bond

energy than the reactants.

The total reaction energy is therefore calculated by subtracting the product

bond energy from the reactant bond energy so as to know the net energy

which was used in the reaction.

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Answer:

(Question) Which result occurs during an exothermic reaction?

(Answer) Light or heat are released into the environment.

(Question) Which event is an example of an endothermic reaction?

(Answer) photosynthesis

(Question) How is total reaction energy calculated?

(Answer) reactant bond energy – product bond energy

(Question) When producing hydrogen iodide, the energy of the reactants is 581 kJ/mol, and the energy of the products is 590 kJ/mol. The equation is shown.

H2 + I2 → 2HI

What is the total energy of the reaction? Is this an endothermic or exothermic reaction?

(Answer) –9 kJ/mol, exothermic

(Question) Hydrogen bromide breaks down into diatomic hydrogen and bromine in the reaction shown.

2HBr → H2 + Br2

The energy of the reactant is 732 kJ/mol, and the energy of the products is 630 kJ/mol.

What is the total energy of the reaction? Is this reaction endothermic or exothermic?

(Answer) 102 kJ/mol, endothermic

Explanation:

just finished the quick check, hope this helps

Answer:

Explanation:

vacuole -used to storage

Answer:

A

Explanation:

Answer:

b

Explanation:

identify objects.

Answer:

Explanation:

1s^2 2s^2 2p^6 3s^1

Tetraamminedichloridoiron(3) nitrate

Is male circle or square? and is the disorder black or white?

Answer:2 duce dose

Explanation:

jit you see the picture now vote

The number of the molecules of water is 1.8 g is  6.02 * 10^22 molecules.

We can be able to obtain the molecules from the Avogadro's number. We know that the number of the molecules that we find in the compound can be gotten by the use of the proposition that was put forward by Avogadro.

Number of moles of the water = 1.8g/18 g/mol = 0.1 moles

We know that;

1 mole of water contains 6.02 * 10^23 molecules of water

0.1 moles of water would contain 0.1 mole * 6.02 * 10^23 molecules/ 1 mole

= 6.02 * 10^22 molecules

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Answer:

DNA contains four nitrogen bases: adenine, thiamine, guanine and cytosine. Adenine and thymine pair, and guanine and cytosine pair.

Explanation:

In combination, nitrogen is found in the rain and soil as ammonia and ammonium salts and in seawater as ammonium (NH4+), nitrite (NO2−), and nitrate (NO3−) ions...

Answer:

plutonic rocks are formed when magma cools and solidifies underground This shows us if the rock is plutonic or volcanic. When magma cools underground, it cools super slow and when lava cools above ground, it cools faster. When magma and lava cool, mineral crystals start to form in the molten rock.

Explanation:

i hope this is correct

Answer:

7.90×10²¹ formula units

Explanation:

From the question given above, the following data were obtained:

Mass of Cu(NO₃)₂ = 2.46 g

Formula units of Cu(NO₃)₂ =?

From Avogadro's hypothesis,

1 mole of Cu(NO₃)₂ = 6.02×10²³ formula units

Next, we shall determine the mass of 1 mole of Cu(NO₃)₂. This can be obtained as follow:

1 mole of Cu(NO₃)₂ = 63.5 + 2[14 + (3×16)]

= 63.5 + 2[14 + 48]

= 63.5 + 2[62]

= 63.5 + 124

= 187.5 g

Thus,

187.5 g of Cu(NO₃)₂ = 6.02×10²³ formula units

Finally, we shall determine the formula units contained in 2.46 g of Cu(NO₃)₂. This can be obtained as follow:

187.5 g of Cu(NO₃)₂ = 6.02×10²³ formula units.

Therefore,

2.46 g of Cu(NO₃)₂ =

(2.46 × 6.02×10²³)/187.5

= 7.90×10²¹ formula units

Thus, 2.46 g of Cu(NO₃)₂ contains 7.90×10²¹ formula units

Answer:

That would be the necleus! I hope this helps you! :)

The atmospheric sample contains nitrogen at 599 torr, oxygen at 154 torr, argon at 6 torr, and carbon dioxide. Assuming standard pressure, what is the partial pressure of carbon dioxide gas.

Given,P(N2) = 599 torrP(O2) = 154 torrP(Ar) = 6 torrP(CO2) = ?At standard pressure, P(total) = P(N2) + P(O2) + P(Ar) + P(CO2)P(total) = 1 atm = 760 torrP(CO2) = P(total) - P(N2) - P(O2) - P(Ar) = 760 - 599 - 154 - 6 = 1 torrTherefore, the partial pressure of carbon dioxide gas is 1 torr.Question 8) A sample of ammonia gas occupies 20.0 mL at 585 torr and 20.0 °C. If the volume of the gas is 50.0 mL at 50.0 °C, what is the pressure.

Given,V1 = 20.0 mLV2 = 50.0 mLT1 = 20.0 °C = 293 K (Kelvin temperature)T2 = 50.0 °C = 323 KVapor pressure of NH3 at 20.0 °C = 0.170 atmVapor pressure of NH3 at 50.0 °C = 0.623 atmUsing Charles's law,V1/T1 = V2/T2(20.0)/(293) = (50.0)/(323)20.0 × 323 = 50.0 × 29364.6 mL = 50.0 mLP1V1/T1 = P2V2/T2(585 torr)(20.0 mL)/(293 K) = P2(50.0 mL)/(323 K)P2 = (585 × 20.0 × 323)/(293 × 50.0)P2 = 424.2 torrTherefore, the pressure of the gas is 424.2 torr.

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Answer:

Explanation:

A )

molecular weight of KMnO₄ =   158

75 g KMnO4 = 75 / 158 moles

= ( 75 / 158 )x 6.02 x 10²³ molecules

= 2.857 x 10²³ molecules KMnO4

so 75g KMnO₄ = 2.857 x 10²³ molecules KMnO4

B )

7.23 × 10²⁴ Al atoms = grams Al

72.3 X 10²³ Al atoms = 72.3 X 10²³ / 6.02 X 10²³ moles of Al

= 12 moles of Al

= 12 x 27 gm of Al

= 324 gm of Al .

7.23 × 10²⁴ Al atoms = 324 grams Al

C )

9.23 × 10²³ Au atoms = moles Au

9.23 × 10²³Au atoms = 9.23 × 10²³ / 6.02 x 10²³ moles of Au

= 1.53 moles of Au .

D )

125 g H₃PO₄ =   molecules H₃PO₄

125 g H₃PO₄ = 125 / 98 moles of H₃PO₄

= (125 / 98) x 6.02 x 10²³ molecules

= 7.678 x 10²³ molecules of H₃PO₄

125 g H₃PO₄ = 7.678 x 10²³  molecules H₃PO₄

E )

.75 moles of CO₂

= .75  x 6.02 x 10²³ molecules of CO₂

= 4.515 x 10²³ molecules of CO₂.

one molecule of CO₂ = 3 atoms

4.515 x 10²³ molecules of CO₂ = 3 x 4.515 x 10²³ atoms

= 13.545 x 10²³ atoms .

The molecules, atoms, and weight of all elements and compounds has been calculated.

(A) To calculate the molecules of a compound:

Molecules = \(\rm moles\;\times\;avagadro\;number\)

Moles = \(\rm \frac{weight}{molecular\; weight}\)

Moles of \(\rm KMnO_4\) = \(\rm \frac{75}{158}\)

Moles of \(\rm KMnO_4\) = 0.474

Molecules of \(\rm KMnO_4\) = \(\rm 0.474\;\times\;6.023\;\times\;10^2^3\)

Molecules of \(\rm KMnO_4\) = 2.85 \(\rm \times\;10^2^3\)

(B) Weight of Al:

moles = \(\rm \frac{atoms}{avagadro\;number}\)

Moles of Al = \(\rm \frac{7.23\;\times\;10^2^4}{6.023\;\times\;10^2^3}\)

Moles of Al = 12

Weight of Al = \(\rm moles\;\times\;molecular\;weight\)

Weight of Al = 12 \(\times\) 27

Weight of Al = 324 grams

(C) Moles = \(\rm \frac{atoms}{avagadro\;number}\)

Moles of Au = \(\rm \frac{9.23\;\times\;10^2^3}{6.023\;\times\;10^2^3}\)

Moles of Au = 1.53 mol/liters

(D) Molecules = \(\rm moles\;\times\;avagadro\;number\)

Moles = \(\rm \frac{weight}{molecular\; weight}\)

Moles of \(\rm H_3PO_4\) = \(\rm \frac{125}{98}\)

Moles of \(\rm H_3PO_4\) = 1.275

Molecules of \(\rm H_3PO_4\) = 1.275 \(\rm \times\;6.023\;\times\;10^2^3\)

Molecules of \(\rm H_3PO_4\) = \(\rm 7.678\;\times\;10^2^3\)

(E) Atoms of \(\rm CO_2\):

Molecules = \(\rm moles\;\times\;avagadro\;number\)

Molecules of \(\rm CO_2\) = 0.75 \(\rm \times\;6.023\;\times\;10^2^3\)

Molecules of \(\rm CO_2\) = 4.515 \(\rm \times\;10^2^3\)

1 molecule of \(\rm CO_2\) = 3 atoms

4.515 \(\rm \times\;10^2^3\) molecules = \(\rm 4.515\;\times\;10^2^3\;\times\;3\)

Atoms of \(\rm CO_2\) = 13.545 \(\rm \times\;6.023\;\times\;10^2^3\)

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CrO and Cr₂O₃ make up the simplest chromium oxide formula.

What name does Cr₂O₃ use?

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Answer:

what picture?

Explanation:

i need a pic

The isotope symbol that fits each description is as follows: 68 neutrons, 47 electrons is Ag b. mass number = 197, 79 electrons is Au c. atomic number = 86, 136 neutrons is Rn d. atomic number = 76, mass number = 192 is Os.

Isotopes are two or more atom types that share the same atomic number (number of protons in their nuclei), location in the periodic table, and chemical element but have distinct nucleon numbers (mass numbers) as a result of having a different number of neutrons in their nuclei. Although the chemical properties of each isotope of a given element are nearly identical, they differ in their atomic weights and physical characteristics.

The name "isotope" refers to the fact that different isotopes of the same element occupy the same location on the periodic table. The word "isotope" is derived from Greek origins that mean "the same place".

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Answer:

Newspaper

Explanation:

Edge

Answer:

The answer is Newspaper on edge

Explanation:

Hes correct

The energy needed to remove an electron from an atom is called the ionization energy.

Ionization energy refers to the minimum amount of energy required to completely remove an electron from an atom or a positively charged ion in its ground state, resulting in the formation of a positively charged ion or cation.

Ionization energy is a fundamental property of atoms and is typically measured in electron volts (eV) or kilojoules per mole (kJ/mol). The value of ionization energy depends on several factors, including the atomic structure, electron configuration, and the attraction between the nucleus and the electrons.

Ionization energy plays a crucial role in understanding chemical reactions, as it determines the ease with which an atom or ion can gain or lose electrons. Elements with low ionization energies are more likely to lose electrons and form cations, while those with high ionization energies tend to gain electrons and form anions. Ionization energy also provides insights into an element's reactivity, as it influences the stability and bonding characteristics of atoms and ions in chemical compounds.

Ionization energy is a significant concept in the study of atomic and molecular properties, helping us understand the behavior of atoms and their interactions in various chemical processes.

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If PCR reaction is performed but accidentally only added one of the two primers there will only be one DNA strand produced.

What is PCR?

PCR stands for polymerase chain reaction. It is a test to find genetic material from a particular organism, like a virus. If you have a virus at the time of the test, the test will reveal its presence.

What occurs in PCR when only one primer is used?

The procedure is known as "asymmetric PCR" if only one primer is employed. As only one new copy is created per cycle and only one strand of the double-stranded DNA will be amplified, exponential amplification cannot be achieved.

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Answer:

B, C, and D are fluids.

Explanation:

Answer:

The reaction is: -67.68

Explanation:

hope this helped:)

The elements that are nitrogen, oxygen and fluorine all of them exist as diatomic gases at room temperature.

There are total seven diatomic elements that are written as follows: hydrogen (H), nitrogen (N), oxygen (O), fluorine (F), chlorine (Cl), bromine (Br), and iodine (I). The formation of diatomic gases is done by making up two atoms of the same gas. For example, the formula for nitrogen gas is N2, the formula for oxygen gas is O2 and the formula for Fluorine gas is F2. The word diatomic has other synonym which is known as heteronuclear. The position of all these three elements in the periodic table is different so their electronegativities, the only common factor is that they exist as a gas.

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Solids have a dignified structure. The particles are stuck together causing them to not flow. Liquids and gases have particles that move around so they can take the shape of their container.

As balloon rises into the atmosphere the pressure in the balloon decreases and the volume of the balloon increases.

What do meteorologists use weather balloons for?

Meteorologists use weather balloons to measure the temperature, pressure, and humidity of the atmosphere from the ground up to several miles above the surface. These measurements can be used to track air pressure systems, locate areas of precipitation, and observe wind speeds and directions. The data collected from weather balloons can be used to make predictions about the weather and can improve forecasts.

As a weather balloon rises into the atmosphere, the air pressure decreases because the density of the atmosphere decreases with increasing altitude. This decrease in air pressure causes the balloon to expand, which increases its volume. Therefore, the correct statements are the pressure in the balloon decreases and the volume of the balloon increases.

Therefore, as balloon rises into the atmosphere the pressure in the balloon decreases and the volume of the balloon increases.

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Answer:

When there is an interaction between two objects.

Explanation:

The element with 3 protons, 4 neutrons, and 3 electrons is lithium (Li).

Lithium has an atomic number of 3, which means it has 3 protons in its nucleus. The number of protons determines the element's identity.

The total number of protons and neutrons gives the atomic mass of an element. In this case, lithium has 4 neutrons, which when added to the 3 protons, gives it an atomic mass of 7.

The atomic mass of lithium is typically given as 7 because it has 4 neutrons in addition to the 3 protons. Neutrons do not affect the element's identity but contribute to its atomic mass.

In a neutral atom, the number of electrons is equal to the number of protons. Since lithium has 3 protons, it also has 3 electrons to balance the positive charge of the protons.

The number of electrons in a neutral atom is equal to the number of protons. Since lithium has 3 protons, it also has 3 electrons to balance the positive charge from the protons.

Therefore, the element with 3 protons, 4 neutrons, and 3 electrons is lithium (Li).

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