When the offspring has a new genetic variation that a government neither of us parents it is called

Answer:

d. 12.3 grams of Al2O3

Explanation:

Based on the reaction:

4Al + 3O2 → 2Al2O3

Where 4 moles of Al reacts in excess of oxygen to produce 2 moles of aluminium oxide.

To solve this question we must find the moles of Aluminium. With these moles we can find the moles of aluminium oxide using the reaction:

Moles Al -Molar mass: 26.9815g/mol-

6.50g * (1mol / 26.9815g) = 0.241 moles Al

Mass Al₂O₃ -Molar mass: 101.96g/mol-

0.241 moles Al * (2 mol Al2O3 / 4 mol Al) = 0.120 moles Al2O3

0.120 moles Al2O3 * (101.96g / mol) =

12.3g of Al2O3 are produced.

Right answer is:

Answer:

A and C

Explanation:

I chose these answers because a longer range of time would give a better representation of the climate.

Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!

Answer:

Hydrogen = colourless, odourless, extremely flammable

Lithium = lowest density, reacts with water, high specific heat

Oxygen = nonpolar, reactive, tasteless

Helium = low boiling point, low density, low solubility

Nitrogen = odorless, colorless, nonflammable

Mg + HCl  → MgCl2 + H2. Salt and hydrogen gas are created when metal and acid combine. Magnesium produces hydrogen gas.

Thus, Salt and hydrogen gas are created when metal and acid combine. Magnesium produces hydrogen gas and magnesium chloride salt when it combines with diluted hydrochloric acid.

The gas produced by the reaction of magnesium with diluted HCl is hydrogen gas. The gas produced by the reaction of magnesium with diluted HCl is hydrogen gas.

The experiment produces very flammable hydrogen gas. No ignition source should be available to students.

Thus, Mg + HCl  → MgCl2 + H2. Salt and hydrogen gas are created when metal and acid combine. Magnesium produces hydrogen gas.

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Answer:

They are directly related.

Temp decrease then volume decrease

Temp increase then volume increase

To determine the closest value for the ΔG° of a nickel-cadmium voltaic cell, we need to understand the relationship between ΔG° and the cell potential (E°). The formula to calculate ΔG° is:

ΔG° = -nFE°

where n is the number of moles of electrons transferred, F is the Faraday constant (approximately 96,485 C/mol), and E° is the cell potential.

For a nickel-cadmium voltaic cell, the cell potential E° is approximately 1.50 V. The number of moles of electrons transferred (n) is 2. Plugging these values into the formula:

ΔG° = -(2)(96485 C/mol)(1.50 V)

ΔG° ≈ -289,455 J

Since 1 kJ = 1000 J, we can convert the result to kJ:

ΔG° ≈ -289.5 kJ

Among the given options, the closest value to the ΔG° for a nickel-cadmium voltaic cell is -125 kJ.

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Answer:

56.2 g

Explanation:

The correct answer is B. H2O; sugar. Photosynthesis involves the transfer of electrons from water (H2O) to sugar (glucose).

Plants and other living things employ a process called photosynthesis to transform light energy into chemical energy that can then be released through cellular respiration to power the organism's activities. The word "photosynthesis," which comes from the Greek words "phs," "light," and "synthesis," "putting together," refers to the process of creating molecules of carbohydrates from carbon dioxide and water that store some of this chemical energy. These molecules include sugars and starches. Photoautotrophs are creatures that perform photosynthesis, including most plants, algae, and cyanobacteria. The majority of the energy required for life on Earth is produced and maintained by photosynthesis.  Photosynthesis is also significantly responsible for producing and maintaining the oxygen concentration of the Earth's atmosphere. Although there are numerous steps involved in photosynthesis in plant leaves, it may be broken down into two phases: the light-dependent reactions and the Calvin cycle.

The thylakoid membrane is the site of the light-dependent processes, which necessitate a constant flow of light energy. This light energy is absorbed by chlorophylls and transformed into chemical energy through the creation of two compounds: ATP, an energy storage molecule, and NADPH, an electron carrier that is reduced. Water molecules are also changed into oxygen gas, which is the oxygen we breathe, throughout this process.

Calvin cycle occurs in the stroma and does not directly require light, commonly known as the light-independent processes. Instead, the Calvin cycle utilises ATP and NADPH from the light-dependent processes to fix carbon dioxide and create molecules of glyceraldehyde-3-phosphate (G3P), a three-carbon sugar that combines with another to generate glucose. The overall result of light-dependent processes is the temporary storage of light energy in the chemical forms of ATP and NADPH. In order to release energy, ATP is broken down, and NADPH contributes its electrons to the process, turning carbon dioxide molecules into sugars. The energy that began as light eventually becomes bound up in the bonds of the sugars.

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Answer: Na+ And F- & CI- and K+

The Na+ and F- and Cl- and K+ both can form ionic compound.

The ionic compound is the compound formed by the ions which is held together by ionic bond.

The bond formed by the oppositely charged ions through electrostatic force of attraction is called ionic bond.

The complete transfer of valence electron is takes place .

The ions should be oppositely charge .

The electronegativity difference between ions should be high.

So, there are two options in the question is correct.

Na+ and F-  

Cl- and K+

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Answer:  16700 mmHg , 22,0 atm

Explanation:   1 torr  = 1 mmHg, so p = 16700 torr = 16700 mmHg

1 atm = 101325 Pa = 760 torr

16700 torr / 760 = 21,97 atm

INFORMATION:

We have:

- 66 grams of NaCl

- 255 grams of water

If the NaCl is dissolved into the water, we must find the mass percent

STEP BY STEP EXPLANATION:

To find the mass percent we must must use the next formula

In our case,

- the solute is NaCl

- the solution would be the sum of masses from NaCl and water

Then,

- mass of solute = 66 g

- mass of solution = 66 g + 255 g = 321 g

Finally, replacing in the formula,

ANSWER:

The mass percent when 66 grams of NaCl is dissolved in 255 grams of water is 20.60%

The environmental problem that would impact most Minnesotans equally is Climate change. The correct option is d.

Climate change is a global issue that affects all regions and populations, regardless of location or industry. Its impacts, such as extreme weather events, changes in precipitation patterns, and rising temperatures, can have far-reaching consequences on the environment, human health, and the economy. In Minnesota, climate change can affect agriculture, forestry, tourism, and other industries, and also impact public health through increased heat waves and worsening air quality. Therefore, addressing climate change requires a collective effort from all communities and sectors . Hence, option d is the correct answer.

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1. The limiting reagent is sulfur trioxide, SO₃ and the excess reagent is water, H₂O

2. The mass of the excess reagent leftover is 14.92 g

3. The mass of sulfuric acid, H₂SO₄ is produced is 8.06 g

The limiting and excess reagent can be obtained as follow:

SO₃ + H₂O -> H₂SO₄

From the balanced equation above,

80 g of SO₃ reacted with 18 g of H₂O

Therefore,

6.58 g of SO₃ will react with = (6.58 × 18) / 80 = 1.48 g of H₂O

From the above calculation, we can see that only 1.48 g of H₂O out of 16.4 g is needed to react completely with 6.58 g SO₃.

Thus, the limiting reagent is SO₃ and the excess reagent is H₂O

The mass of the excess reagent leftover can be obtained as follow:

Mass of excess reagent, H₂O leftover = Mass given - mass reacted

Mass of excess reagent, H₂O leftover = 16.4 - 1.48

Mass of excess reagent, H₂O leftover = 14.92 g

The mass of H₂SO₄ produced can be obtained as illustrated below:

SO₃ + H₂O -> H₂SO₄

From the balanced equation above,

80 g of SO₃ reacted to produce 98 g of H₂SO₄

Therefore,

6.58 g of SO₃ will react to produce = (6.58 × 98) / 80 = 8.06 g of H₂SO₄

Thus, the mass of H₂SO₄ produced is 8.06 g

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The gas in question must be neon.

The spectrum can be used to identify a gas. The idea of a spectrum is adapted from the Bohr model of the atom. It stems from the change in the energy level of an electron in the atom.

The gases that could be used in a bulb are; hydrogen, Helium, Neon, Argon, Krypton, Xenon. If we look at the attached chart that shows the maximum wavelength of each gas, we will notice that that of neon is fairly constant and it has the highest number of lines in the spectrum.

Based on the strength of the all the evidences as shown above, the gas in question must be neon.

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Missing parts;

I NEED HELP ASAP! Compare the spectrum of the unknown gas collected at the bulb company

with the data in your table. Which gas is leaking into the lab? Make a claim

and support your claim with evidence.

The leaking gas is: ___________________________________________

Evidence:

Step 1:

ok we have to use the formula PV=nRT

p=Pressure (must be converted to atm)= 780 mmHg

1 amt= 760 mmHg use this as a conversion factor

780 mmHg (1 atm/760 mmHg)= 1.026

V= Volume= 5.00 mL = o.5 L

n=number of moles which we have to find first

R= 0.0821

T(convert to Kelvins by adding 273.15 to the celsius temperature)= 135 C + 273.15= 408.15 k

Now plug in->

(1.026 atm)(o.5 L)= n(0.0821)(408.15 K)

(1.026 atm)(0.5 L)= n(33.509115)

(0.513)= n(33.509115)

n(number of moles)= 0.01532 mol

Now we have to convert to moles using Avagodro's number which states that 1 mol = 6.022 x 10^23 molecules or atoms

So 0.01532 mol (6.022 x 10^23 number of molesules)/ (1 mol) = 9.225704 x 10^21 = 9.226 x 10^21 colecules

Step 2

You must transfer pressure into pascals, 780 mm Hg = 103991 Pa

135*C = 408.15 k

then from the equation pV = nRt

n = pV / RT (T in Kelvins, V in M^3)

n = 103991 x 500 x 10^-6 / (8.314 x 408.15)= 0.015322 moles of N2

1 mol of everything is 6.022 x 10^23 particles, so 0.15322 moles is 0.15322 x 6.022 x 10^23 = 9.2269084 x 10^21 molecules

Explanation:

Hope this helps :)

Answer:

600 kg/m³

d = m/v

[] d is the density

[] m is the mass

[] v is the volume

[Formula] d = m/v

[Plug-in] d = 3/0.0050

[Divide] d = 600 kg/m³

0.002 kg/m³

0.015 kg/m³

500 kg/m³

600 kg/m³

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Answer:

\(\boxed {\boxed {\sf 600 \ kg/m^3}}\)

Explanation:

We are asked to find the density of a bowling ball. The density of an object is its mass per unit volume. It is calculated by dividing the mass by the volume.

\(\rho= \frac{m}{v}\)

The mass of the bowling ball is 3.0 kilograms and the volume is 0.0050 cubic meters.

Substitute the values into the formula.

\(\rho= \frac{3.0 \ kg}{0.0050 \ m^3}\)

Divide.

\(\rho= 600 \ kg/m^3\)

The density of the bowling ball is 600 kilograms per cubic meter.

Answer:

Co + S = Co2S3

Explanation:

pretend = is the arrow

1. The mass of unstable isotope would be left in 2 hours is 50 g

2. The mass of unstable isotope would be left in 4 hours is 25 g

3. The mass of unstable isotope would be left in 10 hours is 3.125 g

We'll begin by calculating the number of half-lives that has elapsed.

n = t / t½

n = 2 / 2

n = 1

Finally, we shall determine the mass remaining.

N = N₀ / 2ⁿ

N = 100 / 2¹

N = 50 g

We'll begin by calculating the number of half-lives that has elapsed.

n = t / t½

n = 4 / 2

n = 2

Finally, we shall determine the mass remaining.

N = N₀ / 2ⁿ

N = 100 / 2²

N = 25 g

We'll begin by calculating the number of half-lives that has elapsed.

n = t / t½

n = 10 / 2

n = 5

Finally, we shall determine the mass remaining.

N = N₀ / 2ⁿ

N = 100 / 2⁵

N = 3.125 g

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Answer:

See explanation

Explanation:

Calcium carbide reacts with water to yield acetylene gas and calcium hydroxide as follows;

CaC2(s)+2H2O(g)⇋Ca(OH)2(s)+C2H2(g)

This now shows us that the equation as written in the question is wrong. Since the equation for the reaction of calcium carbide and water as shown in the question is wrong, the equation can not be balanced.

The complete Lewis structure of lactic acid is:
H      H
|      |
H-C-C-OH
|      |
H-C-C=O
|      |
H      OH

When lactic acid reacts with water, one of the OH groups will dissociate and form H+ ions. The complete Lewis structure of the product, H3O+, is:
      H
      |
H      O-H
|      ||
H-C-C=O
|      |
H      OH

(b)
To prepare 100.00 mL of a 1.00 M aqueous solution of NH4Cl, we need to dissolve 5.33 g of NH4Cl in distilled water. Here are the steps:

(1) Use the balance to weigh out 5.33 g of NH4Cl(s).

(2) Carefully transfer the solid into a 100 mL volumetric flask.

(3) Add distilled water up to the etched line.

(4) Mix the solution thoroughly until all the solid is dissolved.
You can use a stirring rod to help dissolve the NH4Cl.
The 50 mL buret, 100 mL graduated cylinder, and 100 mL pipet are not needed for this procedure.

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Answer:

\(\boxed {\boxed {\sf v\approx 1.79 \ cm^3}}\)

Explanation:

The formula of density is:

\(d=\frac{m}{v}\)

If the formula is rearranged for volume, it becomes:

\(v=\frac{m}{d}\)

The mass of the platinum is 38.5 grams.

The density is 21.5 grams per cubic centimeter.

\(m=38.5 \ g \\d= 21.5 \ g/cm^3\)

Substitute the values into the formula.

\(v=\frac{38.5 \ g}{ 21.5 \ g/cm^3}\)

Divide. Note that the grams (g) will cancel each other out.

\(v=1.79069767 \ cm^3\)

Round to 2 decimal places (hundredth place). The 0 in the thousandth place tells us to leave the 9 in the hundredth place.

\(v\approx 1.79 \ cm^3\)

The volume is about 1.79 cubic centimeters.

Answer:

D = 1.79 cm^3

Explanation:

Use the formula Volume = Mass / Density with what you've been given.

V = 38.5 g / 21.5 g/cm^3

V = 1.790697674 = 1.79 cm^3

Answer:

1) The frequency of each photon is 3.0 × 10⁹ Hz

2) The energy of each photon is 1.98786 × 10⁻²⁴ J

Explanation:

The energy, 'E', in a photon of light is given by Planck's equation as follows;

E = h·f = h·c/λ

Where;

E = The energy of a photon

h = Planck constant = 6.6262 × 10⁻³⁴ J·s

f = The frequency of the photon/radiation

c = The speed of light = 3.0 × 10⁸ m/s

λ = The wavelength of the photon/radiation

The given parameters of the microwave are;

The wavelength, λ = 10 cm = 0.1 m

The type of wave = Microwave

1) From E = h·f = h·c/λ, we find that the frequency, 'f' equals c/λ

∴ f = 3.0 × 10⁸ m/s/(0.1 m) = 3.0 × 10⁹ 1/s = 3.0 × 10⁹ Hz

The frequency of each photon, f = 3.0 × 10⁹ Hz

2) From E = h·f = h·c/λ, the energy, 'E', of each photon is given as follows;

E = h·c/λ = 6.6262 × 10⁻³⁴ J·s × 3.0 × 10⁸ m/s/(0.1 m) = 1.98786 × 10⁻²⁴ J

The energy of each photon, E = 1.98786 × 10⁻²⁴ J

Answer:

Choice B, as time goes on the surface level rises and stuff buried underground gets further and further below surface level.

a. The balanced equation from the line notation Ag(s) Ag+(aq) || Cd2+(aq) Cd(s) is given below;Ag(s) + Cd2+(aq) → Ag+(aq) + Cd(s)The given line notation represents an electrochemical cell where two half-cells are separated by a salt bridge.

The anode half-cell is on the left side of the double vertical line notation while the cathode half-cell is on the right side of the double vertical line notation. In the anode, oxidation takes place, and the electrode is considered negative, whereas in the cathode, reduction takes place, and the electrode is considered positive.b. The balanced equation from the line notation Pb(s) Pb2+(aq) || MnO2(aq) | Mn2+(aq) | Pt(s) is given below;Pb(s) + MnO2(s) + 4 H+(aq) → Pb2+(aq) + Mn2+(aq) + 2 H2O(l)The given line notation represents an electrochemical cell where two half-cells are separated by a salt bridge. The anode half-cell is on the left side of the double vertical line notation while the cathode half-cell is on the right side of the double vertical line notation. In the anode, oxidation takes place, and the electrode is considered negative, whereas in the cathode, reduction takes place, and the electrode is considered positive.

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Answer:

answer is potasium means k

Answer:

i think potassium

Explaination:

So,

There's an equation that we could use in order to find frequency, and it is the next one:

This equation tells us that the energy of the photon is equal to the product of the Plank constant (h), which is 6.626*10^-34 J.s, and the frequency.

In this problem, we know the value of E and the value of h, so we need to solve for v:

Therefore, the correct answer option is A.

Answer:

Germanium or Ge

Explanation:

It is on the perioidic table. Gallium has an atomic number of 31 and Germanium has an atomic number of 32.

Answer: C.) Xe

Explanation: To figure out the answer go to the Noble Gas Family and count down 5 elements.

According to the electronic configuration the symbol which would be included in the noble gas notation for an element that had valence electrons in the 5 s subshell is xenon  .

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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