When electrons lost a blank ion is formed

When electrons are gained a blank ion is formed

Answer:

fixed resistors, variable resistors, resistance dependent on a physical quantity

Explanation:

all are a good example of plant tissue but from my side I think it is B.

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Answer:

imcomplete dominance

Explanation:

because it is

Answer:

Explanation:

Water vapor is when water molecules are present in the air, while steam is water heated to the point that it turns into gas. In simplified science, both are referred to as the gaseous state of water. Steam is usually white or translucent in nature, while water vapor can be clear or translucent.

Steam is simply, water vapor. Hence, the key difference between steam and vapor is that steam is the gaseous state of water whereas vapor is the gaseous state of any substance. Moreover, steam is typically invisible while the vapor of some substances is colorful.

Answer:

Volume = [tex]1cm^3[/tex]

Explanation:

Volume of cube = [tex]s^{3}[/tex]

Wherein,

s = length of side

Hence,

If the length of each side is 1cm,

Volume = [tex]1^3[/tex]

= 1[tex]cm^3[/tex]

You come across an article in a scientific journal from 50 different laboratories around the globe that measured the boiling point of water and discovered that it is 100°C everywhere.

Water turns into gas around 212°F (100°C), which is the temperature at which it begins to boil (water vapor). Pressure affects the melting/freezing and boiling points. Water's boiling point changes when air pressure changes. The boiling point decreases with increasing altitude or decreasing pressure.

Water has a freezing point of 32 degrees Fahrenheit and a boiling point of 212 degrees Fahrenheit on the Fahrenheit scale.

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Answer:

a biotic factor это просто

Answer:

[tex]2Al (s) + 3CuCl2( aq) --> 2AlCl3 (aq) + 3Cu(s)[/tex]

Explanation:

The main thing for this equation is to follow the amount on each side. Count each element on each side. Then by looking at the numbers figure out what numerical digit would make them equal.

For example:

On the left we have

Cu=1 and Cl=2.

But on the right we have

Cu=1 and Cl=3.

In order for them to be the same, we must add a coefficient of 3 to CuCl2 (aq0  on the left and a coefficient of 3 to Cu(s) on the right.

Explanation:

Partial pressure of a gas is the product of the mole fraction of that gas, which is the ratio of the no. of moles of the gas to the total no. of moles, and the total pressure.

total no. of moles=0.74+0.25=0.99 mol

mole fraction of N2=0.74/0.99=0.7475

mole fraction of O2=0.25/0.99=0.2525

total pressure=1.7+4.7=6.4 atm

partial pressure of N2=0.7475×6.4=4.784 atm

partial pressure of O2=0.2525×6.4=1.616 atm

Answer:

you have to decide 865,000 with 1000 and the answer is 865

Answer:

you can explore the structure of atoms as you add protons, neutrons, or electrons to a model and the name of the element you have created

Explanation:

Answer: 219 kJ

Explanation:

Answer:

A: ZnS(s) + 2O2(g) --> ZnSO4(s)

Explanation:

;) good luck

Answer:

The answer is A or the first choice

Explanation:

ZnS(s) + 2O2(g) Right arrow. ZnSO4(s)

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Answer:

For all these questions, we want to find the empirical and molecular formulae of various compounds given their percent composition and molar mass. The technique used to answer one of the questions can accordingly be applied to all of them.

Approaching the first question, we treat the percentages of each element as the mass of that element in a 100 g compound (as the percentages add up to 100%). So, our 100 g compound comprises 7.74 g H and 92.26 g C.

Next, we convert these mass quantities into moles. Divide the mass of each element by its molar mass:

7.74 g H/1.00794 g/mol = 7.679 mol H

92.26 g C/12.0107 g/mol = 7.681 mol C.

Then, we look for the molar quantity that's the smallest ("smaller," in this case, since there are only two), and we divide all the molar quantities by the smallest one. Here, it's a very close call, but the number of moles of H is slightly smaller than that of C. So, we divide each molar quantity by the number of moles of H:

7.679 mol H/7.679 mol H = 1

7.681 mol C/7.679 mol H ≈ 1 C/H (the value is actually slightly larger than 1, but we can treat it as 1 for our purposes).

The quotients we calculated represent the subscripts of our compound's empirical formula, which should provide the most simplified whole number ratio of the elements. So the empirical formula of our compound is C₁H₁, or just CH.

Here, it just so happens that we obtained whole number quotients. If we end up with a quotient that isn't a whole number (e.g., 1.5), we would multiply all the quotients by a common number that would give us the most simplified whole number ratio (so, if we had gotten 1 and 1.5, we'd multiply both by 2, and the empirical formula would have subscripts 2 and 3).

To find the molecular formula (the actual formula of our compound), we use the molar mass of the compound, 78.1134 g/mol. The molar mass of our "empirical compound," CH, is 13.0186 g/mol. Since our empirical formula represents the most simplified molar ratio of the elements, the molar masses of our "empirical compound" and the actual compound should be multiples of one another. We divide 78.1134 g/mol by 13.0176 g/mol and obtain 6. The subscripts in our molecular formula are equal to the subscripts in our empirical formula multiplied by 6.

Thus, our molecular formula is C₆H₆.

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As mentioned before, all the questions here can be answered following the procedure used to answer the first question above. In any case, I've provided the empirical and molecular formulae for the remaining questions below for your reference.

2. Empirical formula: C₁₃H₁₂O; molecular formula: C₁₃H₁₂O

3. Empirical formula: CH; molecular formula: C₈H₈

4. Empirical formula: C₂HCl; molecular formula: C₆H₃Cl₃

5. Empirical formula: Cl₄K₂Pt; molecular formula: Cl₄K₂Pt

6. Empirical formula: C₂H₄Cl; molecular formula: C₄H₈Cl₂

Answer:

The factors that determine the amount of elastic potential energy being stored include the type of material and the amount it is deformed. The more an object is deformed, the more stored energy it has.

Answer:

Fluorine

Explanation:

Valence means the outer most energy level

Answer:

[tex]6.05211\times 10^{23}\ \text{atoms}[/tex]

Explanation:

Moles of carbon dioxide = 1.005 moles

[tex]N_A[/tex] = Avogadro's number = [tex]6.022\times 10^{23}\ \text{mol}^{-1}[/tex]

Number of atoms is given by

[tex]\text{Moles}\times N_A=1.005\times 6.022\times 10^{23}[/tex]

[tex]=6.05211\times 10^{23}\ \text{atoms}[/tex]

The number of atoms in the given amount of moles of carbon dioxide is [tex]6.05211\times 10^{23}\ \text{atoms}[/tex].

Answer: a- 323 b- 15

Explanation:

Answer:

The empirical and molecular formula because the ratio is 2:1 and there is 2 hydrogen atoms and 1 oxygen atom.

Hope this helps!

Answer:

Layer 2 and layer 9 is the same relative age since it is the same type of rock and has the same fossils.

Hope this helped!

ITS CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Answer:

F₂ (g) + FeI₂ (aq) →  FeF₂ (aq) +  I₂ (l)

Explanation:

Our reactants are:

F₂ → Fluorine gas, a dyatomic molecule

FeI₂ → Iron (II) iodine

Our products are:

I₂ → Iodine

FeF₂ → Iron (II) fluoride

Then, the reaction is:

F₂ (g) + FeI₂ (aq) →  FeF₂ (aq) +  I₂ (l)

We see it is completely balanced.

Answer:

1 gram

Explanation:

Half life = 25 years

Starting mass = 16 grams

Time = 100 years

Number of half lives = Time / Duration of Half life = 100 / 25 = 4

After first Half life;

Remaining mass = 16 / 2 =  8 g

After Second Half life;

Remaining mass = 8 / 2 =  4 g

After Third Half life;

Remaining mass = 4 / 2 =  2 g

After Fourth Half life;

Remaining mass = 2 / 2 = 1 g

Answer:

The gas pressure inside the flask is higher than outside the flask ornthe atmospheric pressure.

Explanation:

Given a U-tube manometer with water in between each arm of U-tube. One end is open to the atmosphere while one end is sealed to a flask filled with a gas. The water in the open end of the tube is experiencing a pressure equal to the atmospheric pressure whereas the water at the end sealed of to the flask is experiencing pressure due to the gas in the flask.

If the water level in both arms of the tube are equal, then the pressure due to the gas is equal to atmospheric pressure.

If the water level in the arm sealed to the gas is higher than that of the open end, The gas pressure is less than the atmospheric pressure.

If the water level in the arm sealed to the flask is lower than the open end, the pressure due to the gas is higher than atmospheric pressure.

From the question, when the water level is higher outside the flask than inside, then the gas pressure inside the flask is higher than the atmospheric pressure.

Answer:

(A) AgOH(s) + NaNO3(aq)

Explanation:

correct on edge 2021

Answer:

a

Explanation:

Answer:

Erosion

Explanation:

Answer:

yes 100 greater