help meeeeee please #2

Answer: Resources are characterized as renewable or nonrenewable

- a renewable resource can replenish itself at the rate it is used such as solar energy, wind energy, hydro energy, and tidal energy.

- a nonrenewable resource has a limited supply such as coal, gas, nuclear energy, and fossil fuels.

Molarity of the solution is 5.8M

        moles of solute (n) = 1.45      

        Volume of solution (V) = 250 ml

Molarity of a solution is defined as the number of moles of the solute dissolved per litre of the solution. It is represented as M . Thus a solution, which contains one gram mole of the the solution dissolved per litre of the solution is regarded as .

M = n of solute  / Vol (L)

    =  [tex]\frac{1.45 * 1000}{100 * 250}[/tex] = 5.8 M

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Answer:

5.1 mol

Explanation:

Silver's molar mass is 107.8682

550/107.8682=5.09881503539

Or if you round it's = 5.1

Answer:

5.0

Explanation:

https://www.convertunits.com/from/grams+Silver/to/moles

this is what I used, this maybe be useful later.

Answer:

Decrease

Explanation:

Since the speed in which the gas molecules are faster as they are heated, they fly around in the container and logically, it is harder to insert a moving object into water than something more stationary or slower.

Answer:

Because organism is made up of organs

organs are made up of tissues

tissues are made up of cells

Therefore interaction of cells give outcome to tissue which further show's results in organs and to organ system and then to the body as a whole

Explanation:

Answer:

Synthetic polymers are human-made polymers, and they are commonly found in a variety of consumer products. Various main chains and side chains are used to make different synthetic organic polymers.

Answer:

18

Explanation:

Element   Symbol   no of Atoms

Copper           Cu                3

Sulfur            S                3

Oxygen           O                  12

                                              18 = total

To see the number of atoms of an element in a given molecule we need to multiply stoichiometry to the number that is written on the foot of the element that is stoichiometry. Therefore, there are total 18 electrons in the given compound.

Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.

In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge. So overall the charge of nucleus is due to only proton, not by neutron.

Element     Symbol               no of Atoms

Copper           Cu                      3

Sulfur                S                      3

Oxygen            O                      12

S, there are total 18 electrons in the given compound.

Therefore, there are total 18 electrons in the given compound.

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Answer:

only god knows the answer

The Gibbs free energy is given by the change in enthalpy, temperature, and change in entropy. The standard change in Gibbs free energy for oxidation of iron is –1484.6 kJ.

Gibbs free energy is the energy present in a thermodynamic system that is used by the reactant to form a product. It is given as,

Δ G° = Δ H° -T ΔS°

The oxidation reaction of iron is given as,

4Fe(s) + 3O₂(g) → 2Fe₂O₃(s)

Given,

ΔS° = –549.73 J∙K⁻¹

T = 298 K

Δ H° = –824.2 kJ∙mol⁻¹

Substituting values above the Gibbs free energy is calculated as:

Δ G° = Δ H° -T ΔS°

= –824.2 kJ∙mol⁻¹ -  298 K ( –549.73 J∙K⁻¹)

= -1484580.46 J

The units of joules are converted into kilojoules and the standard change in Gibbs free energy will be –1484.6 kJ.

Therefore, –1484.6 kJ is the Gibbs free energy.

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Answer:

https://clever.com/

Explanation:

Explanation:

The electron configuration for the first row transition metals consists of 4s and 3d subshells with an argon (noble gas) core. This only applies to the first row transition metals, adjustments will be necessary when writing the electron configuration for the other rows of transition metals.

Answer:

F

Explanation:

Answer:

If a soil test indicates low magnesium, dolomitic limestone can be used to correct both the nutrient deficiency and pH. The value of limestone is in its ability to neutralize soil acidity. Limestone's properties differ considerably, and these differences influence the limestone's ability to neutralize soil acidity.

Explanation:

HAVE A GOOD DAY

Answer:9.8

Explanation:right answer

Answer:

both the substances will evaporate

Explanation:

Answer:

String a piece of twine between the cups. Use a long piece of string to help the sound travel farther. Tie a knot in the end of the string to keep it in the cup. Decorate the cups if desired. One person can hold the phone up to their ear and the other person can talk into the other cup. Keep the string tight or the sound waves won’t travel.

Explanation:

Answer:

Explanation:

Answer:

A few years back I back in 8th grade I head somewhat of a scream underwater, at first I was amazed at the sound but I suddenly realized how physically possible, the only way to make noise under water is to breath in the water and that can drown you, as I heard this I almost immeaditetly bolted out of the water and saw someone either trying to destroy their lungs themselves or being uneducated, they ended up stopping after a bunch of people started staring at them.

Explanation:

Answer:

D) 6

Explanation:

The balanced equation would be:

6Li + N2 -> 2Li3N

To calculate the atoms of an element in a given molecule, we need to multiply stoichiometry by the number that is written on the foot of that element. Therefore, the correct option is option D.

Balanced equation is the one in which the total number of atoms of a species on reactant side is equal to the total number of atoms on product side. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, displacement reaction.

The other characteristic of balanced reaction is that physical state should be written with each compound or molecule on reactant and product side. Physical state should be written in brackets. s means solid, l means liquid, g means gas.

The skeletal equation is

Li + N[tex]_2[/tex] [tex]\rightarrow[/tex] Li[tex]_3[/tex]N

The number of atoms of nitrogen on reactant side is 2 while on product side it is 1 so to balance

Li + N[tex]_2[/tex] [tex]\rightarrow[/tex] 2Li[tex]_3[/tex]N

The lithium atom on reactant side is 1 while on product side it is 6,  so to balance

6Li + N[tex]_2[/tex] [tex]\rightarrow[/tex] 2Li[tex]_3[/tex]N

The coefficient of the Lithium is 6.

Therefore, the correct option is option D.

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Answer:

0.1 L

Explanation:

M₁ × V₁ = M₂ × V₂

10M × V₁ = 1M × 1L

V₁ = 0.1 L

I hope this helps :)

The molar dilution can be used to estimate the molarity or the volume. 0.1 L of 10 M solution is required to make 1 M of solution.

A dilution factor of the molar concentration is used to calculate the molar concentration or the volume needed to make the diluted solution from the stock.

Given,

M₁ = 10 M

V₁ = ?

M₂ = 1 M

V₂ = 1 L

The volume is calculated as:

M₁ V₁ = M₂ V₂

10 V = 1 × 1

V = 1 ÷ 10

= 0.1 L

Therefore, 0.1 L of the 10 M solution is needed.

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Answer:

Coal puts out more Co2 emissions than Oil or Gas and Nuclear energy plants don't put out any pollution.

Explanation:

Even though Coal is your answer it is actually a very clean form of generating energy. Not only is it very clean but it is the most effecient means. Solar and Wind power can't even come close to the production and turnover that Coal, Gas, and Oil can. Wind Turbines are so innefficent that they somtimes don't even pay off what it took to build them in thier lifetime of service. The production of Wind Turbines puts out more pollution than any of the Coal or Natural Gas Plants. Solar power is not very efficent either but it is on it's way. It is also very expensive.

Answer:

1

Explanation:

The redox reaction that occurs during the operation of a battery is best describes as non-spontaneous and occurring in a chemical (voltaic) cell.

Redox reactions are those reactions in which oxidation or reduction reaction occurs. In these reactions, losing of an electron occur.

An example is formation of hydrogen fluoride.

Thus, the correct option is (1) non-spontaneous and occurring in a chemical (voltaic) cell.

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Explanation:

[tex]from \: hookes \: law \\ F = k.e \\ but \: e = 0.6 \: cm \\ 2 = k \times 0.6 \\ k = 3.33 \\ when \:F \: is \: 2.5 \\ 2.5 = 3.33 \times e {}^{.} \\ {e}^{. } = 0.75 \: cm \\ new \: length = 35 - {e}^{.} \\ = 35 - 0.75 \\ = 34.25 \: cm[/tex]

Answer:

A spectator ion is an ion that does not participate in a chemical reaction and is found in a solution before and after a reaction.

Hope this helped :)

Answer:

Explanation:

#cArryonLeArning

Answer:

Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases.

Answer:

Supply the body with Oxygen

Explanation:

The respiratory system helps remove waste gases and help you breath

(Your respiratory system consists of your lungs, mouth, and windpipe)

Answer:

D C4H28

Explanation: