Which hand is negatively changed?

A.
B.
C.
D.

Answer:

can not be determined

Explanation:

because when I tried to calculate it it didn't give me the answer options that was in the pic so it's definitely C

A supersaturated solution contains more solute at a given temperature than is needed to form a saturated solution.

Increased temperature usually increases the solubility of solids in liquids.

For example, the solubility of glucose at 25 °C is 91 g/100 mL of water. The solubility at 50 °C is 244 g/100 mL of water.

If we add 100 g of glucose to 100 mL water at 25 °C, 91 g dissolve. Nine grams of solid remain on the bottom. We have a saturated solution.

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Plz mrk me brainlest

Answer:

Following are the solution to the given question:

Explanation:

For question 1:

For question 2:

Answer:

True

Explanation:

The tertiary structure of a protein is a complex arrangement formed as the polypeptide chain folds and twists.

This folding & twisting of polypeptide chain leading to its complex structure, is true about tertiary structure of protein. It occurs due to different interactions between side chains of amino acids.

Answer:

2. Hydrogen Bonds

Explanation:

Since water is a polar covalent molecule, there is a slight negative and positive end. Due to this, the oxygen end of one water molecule gravitates towards the hydrogen molecules of another water molecule. This accounts for a bunch of weird properties of water, like why ice floats. It's also what makes water the "universal solvent," and gives all life on earth the ability to even exist.

The primary forces of attraction between water molecules in H₂O (I) are hydrogen bonds.

Hydrogen bonding is present in water molecule due to which it exhibits an excellent property of adhesion to itself and to other substances.The hydrogen bonding is a result of electrostatic forces of attraction which are generated by the difference in charge between slightly positive hydrogen ions and slightly negative other ions.

In case of water,hydrogen bonds are formed  between neighboring  hydrogen and oxygen atoms  of the nearby water molecules.The attraction between water molecules itself results in a formation of a bond called as a hydrogen bond.  

It is a type of covalent bond which is formed  between hydrogen and oxygen atoms as one oxygen atom  shares its two electrons with two hydrogen atoms .The positive charge  of one hydrogen atom associates with negative charge of  oxygen atom.These are weak interactions  which are formed between a hydrogen atom each with a partial positive charge and an oxygen atom which is more electronegative than hydrogen.

To learn more about bonding in water click here:

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Answer:

can u explain a little more then i will help like what are the four

Explanation:

Answer:

d) U-238

Explanation:

edg 2021

Answer:

A I think

Explanation:

Carbon has an outer shell consisting of 4 valence electrons. ... Thus, a carbon ion can have a charge of anywhere from -4 to +4, depending on if it loses or gains electrons. Although the most common oxidation states of carbon are +4 and +2, carbon is able to make ions with oxidation states of +3, +1, -1, -2, and -3.

Answer:

extreme/high

low

minerals

Explanation:

When Magma forms within the mantle what is the most often result? The most often result of this is high temperatures, and low pressure.

Answer:

Explanation:

\we must convert the mass of NaCl in grams into moles. We do this by dividing by the molecular weight of NaCl (58.4 g/mole). Then, we divide the number of moles by the total solution volume to get concentration. The NaCl solution is a 0.1 M solution.

Answer:

0.125

Explanation:

boom

Answer:The answer is c

Explanation:

Plants!

No doubt the answer is plants they are one maintaining the temperature, responsible for rains too...

Answer:

milliliters

Explanation:

Is going to be milliliters because in the metric system of measurement,the most common unit of volume are milliliters and liters

Answer:

Explanation:

The net force on electron is electrostatic force between electron and proton in the nucleus .

Fc = [tex]\frac{1}{4\pi\epsilon} \times \frac{e\times e}{r^2}[/tex]

This provides the centripetal force for the circular path of electron around the nucleus .

Centripetal force required = [tex]\frac{m\times v^2}{r}[/tex]

So

[tex]\frac{m\times v^2}{r}=\frac{1}{4\pi\epsilon} \times \frac{e\times e}{r^2}[/tex]

[tex]v^2=\frac{e^2}{4\pi \epsilon m r}[/tex]

[tex]v=(\frac{e^2}{4\pi \epsilon m r})^{\frac{1}{2} }[/tex]

Answer:

you need a theripist or maybe just your girl if this is your question.

Explantion: you are clearly very weird but very cute and ily.

Answer:

i am dancing and you ok hom

Answer:

The empirical formula of a compound is the simplest whole number ratio of atoms of each element in the compound. It is determined using data from experiments and therefore empirical.

For example, the molecular formula of glucose is C 6H 12O 6 but the empirical formula is CH 2O.

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Have a great day, be safe and healthy  

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Answer:

a chemical formula showing the simplest ratio of elements in a compound rather than the total number of atoms in the molecule CH2O is the empirical formula for glucose.

Answer:

Explanation:

YONG ISA PO ETO HINDI KO PO ALAM TOH

Answer:ee

Explanation:

Answer:

See Explanation

Explanation:

The equation of the reaction is;

ZnO(s) + 2HNO3(aq) --------> Zn(NO3)2(aq) + H2O(l)

a) When you first add ZnO to aqueous HNO3, the powder dissolves as it mixes with the acid.

b) If the student keeps on adding more ZnO powder to the HNO3 after the  reaction between the acid and metal oxide was complete, the powder will no longer dissolve in the acid. At this point, the reaction has attained equilibrium.

Chemical reactions involve breaking chemical bonds between reactant molecules (particles) and forming new bonds between atoms in product particles (molecules). The number of atoms before and after the chemical change is the same but the number of molecules will change

Answer:

The bonds in reactants break so that elements can rearrange form new products

Explanation:

Answer:

Greenhouse gases absorb some of the energy and trap it in the lower atmosphere. Less heat radiates into space, and Earth is warmer. Many greenhouse gases occur naturally. Carbon dioxide, methane, water vapor, and nitrous oxide are naturally present in Earth's atmosphere. Since some of the extra energy from a warmer atmosphere radiates back down to the surface, Earth's surface temperature rises.

Hope this helped! :)

Answer:

Earth

Explanation:

Earth is unique in the fact that we have an oxygen-rich atmosphere

Answer:

2.475 mol of O2  formed.

Explanation:

Given 1.65 moles of KClO3 as the target amount in the reactant, used the coefficient of the balanced chemical reaction involved to determine the number of moles of O2 molecules formed.

x mole of  O2   = 1.65 mol  KClO3 x [(3 mol O2)/ (2 mol KClO3)] = 2.475 mol of O2

x mole of  O2 formed  = 2.475 mol of O2

Answer:

See explanation below

Explanation:

a) First, as the KCl is a salt, this will ve completely dissociated by water in solution and the reaction taking place would be:

KCl <-----------> K⁺ + Cl⁻

b) According to the above reaction, the Ksp or constant of solubility product will be just the concentration of the products. This is because solid compounds do not contribute in the equilibrium expression, cause they have a constant concentration near to 1. Same thing happens with liquid compounds. So, based on this the Ksp expression for the above reaction is:

KCl(s) <-----------> K⁺(aq) + Cl⁻(aq)

Ksp = [K⁺] [Cl⁻]

c) To find this solubility we need to write the Ksp expression from above, use the given Ksp value and then solve for the solubility:

KCl(s) <-----------> K⁺(aq) + Cl⁻(aq)

Ksp = [K⁺] [Cl⁻]

21.7 = s * s

21.7 = s²

s = 4.66 mol/L

d) To know this, we need to see the concentration of the KCl in solution with the given data of 21.5 moles and the 5 liters of solution:

[K⁺] = [Cl⁻] = 21.5 / 5 = 4.3 mol/L

If we want to calculate the Ksp at this conditions we have:

Ksp2 = (4.3)²

Ksp2 = 18.49

As this value is lower than the actual Ksp value, we can conclude that this solution is undersaturated.

Hope this helps