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What coefficient should be used for oxygen gas to correctly balance this equation

The medicinal effects attributed to fungi, based mainly on uncharacterized substances or extracts, include antiviral, immunomodulatory, antitumor, antioxidant, radical scavenging, anti-inflammatory, antihyperlipidemic or antihypercholesterolemic, hepatoprotective, and antidiabetic effects.

Helium

Helium has 2 electrons both in the first shell (so two valence electrons).

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Answer:

When salt is mixed with water, the salt dissolves because the covalent bonds of water are stronger than the ionic bonds in the salt molecules. ... Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together.

Explanation:

Answer:

9.83039 moles i think this is the answer

Answer:

1. The molecule must possess polar covalent bonds in its structure

2. The molecule must have a NET DIPOLE moment

Explanation:

Polar molecules occur when two atoms do not share electrons equally in a covalent bond. A dipole forms, with part of the molecule carrying a slight positive charge and the other part carrying a slight negative charge. This happens when there is a difference between the electronegativity values of each atom.

Polar molecules have an asymmetrical form and polar covalent connections due to atoms' different electronegativities, resulting in an unequal electron density distribution and a net dipole moment.

To determine the polarity of a molecule, two conditions need to be satisfied:

The molecule must have an asymmetrical shape, and its electron density must be irregular. When the atoms that make up the molecule have different electronegativities, the electrons are drawn to one atom in the molecule more than they are drawn to another. Because of this excess electron density, one side of the molecule will become slightly negative (-), while the other side will become slightly positive (+).

Polar Bonds: In order for the molecule to function properly, it must contain polar covalent bonds. When two atoms with differing electronegativities share electrons in an unequal manner, a polar covalent bond is formed. This results in one atom having a partial positive charge and the other atom having a partial negative charge. When a molecule has multiple polar covalent connections and an asymmetrical shape, the dipole moment of the molecule is said to be polar.

Polarity can be attributed to the asymmetrical bent shape of water (H2O) as well as the covalent interactions between hydrogen and oxygen. Due to the fact that oxygen has a greater electronegative potential than hydrogen, electrons are drawn towards oxygen, which results in oxygen atoms having a partial negative charge whereas hydrogen atoms have a partial positive charge.

Because of the varying electronegativity of the atoms, a polar molecule needs to have an asymmetrical structure and polar covalent bonds in order to exist. As a result of these conditions, polar molecules possess an uneven distribution of their electron density as well as a net dipole moment.

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Answer:

I guess 1-mole carbon dioxide contains 6.02 x 10^23 molecules.

Answer:

Element Fluorine

Explanation:

The chemical element fluorine is a gas that has a mass number of 19.

The gas with a mass number of 19 is potassium-39 (K-39).

Potassium-39 is an isotope of potassium, which is an alkali metal element found in Group 1 of the periodic table. The atomic number of potassium is 19, indicating the number of protons in its nucleus, while the mass number represents the total number of protons and neutrons in the atom.

Potassium-39 is the most abundant naturally occurring isotope of potassium, accounting for about 93% of its isotopic composition. It is stable and non-radioactive. Potassium as a whole is an essential element for many biological processes and is found in various foods. It plays a crucial role in nerve function, muscle contraction, and maintaining electrolyte balance in the body.

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Answer:

No Specific question

Explanation:

Answer:

A: heating solid

B: melting

C: heating liquid

D: boiling

E: heating gas

F: melting point

Explanation: got it right

Answer:

Aa

Explanation:

all of the punnet squares would be Aa because there is AA to aa

The freezing point of a 1.324 m solution, prepared by dissolving biphenyl into naphthalene, is 71.12 ° C.

A solution is prepared by dissolving biphenyl into naphthalene. We can calculate the freezing point depression (ΔT) for naphthalene using the following expression.

[tex]\Delta T = i \times Kf \times m = 1 \times 6.90 \°C/m \times 1.324m = 9.14 \°C[/tex]

where,

The normal freezing point of naphthalene is 80.26 °C. The freezing point of the solution is:

[tex]T = 80.26 \° C - 9.14 \° C = 71.12 \° C[/tex]

The freezing point of a 1.324 m solution, prepared by dissolving biphenyl into naphthalene, is 71.12 ° C.

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Answer:

13) Carbon Dioxide and water

Explanation:

The fact is that during photosynthesis, Carbon Dioxide is needed by green plants to manufacture their food and water is also needed but also chloroplast which contained chlorophyll is also needed

hence, the options are somehow confusing

14) perhaps it should be all of the above

Answer:

Explanation:

magnesium chloride

Answer:

The answer is 9

Explanation:

Because 5+4=9 lol

Answer:

C5H10O5

Explanation:

Answer:

Question 8, I think is C describe CR. Question 7 is Chemical reactions produce new substances

Explanation:

Answer:

The answer for the first question is Mechanical energy and the second one is position A.

https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%20%5Cneq%20%5Cneq%20%20%5Clim_%7Bn%20%5Cto%20%5Cinfty%7D%20a_n%20%5Cint%5Climits%5Ea_b%20%7Bx%7D%20%5C%2C%20dx%20x%5E%7B2%7D%20%5C%5C%20%5C%5C%20%5Cleq%20%5C%5C%0

Answer:

6.022×1023

Explanation:

There are 6.022 × 1023 atoms of potassium in every mole of potassium. Since one mole of KOH contains one mole of K, the answer is 6.022×1023 atoms of K.

1. weight

2. gravity

3. mass, far(distance)

4. weight

5. mass, ?

Answer:

longer, shorter

Explanation:

A carbon-carbon double bond is longer than a carbon-carbon triple bond, and shorter than a carbon-carbon single bond

Answer:

A little portion of a substance that has all of the substance's physical and chemical properties. If a molecule has more than one atom, the atoms might be identical (a molecule of oxygen contains two atoms of oxygen) or distinct (a molecule of water contains two atoms of hydrogen and one atom of oxygen).

Explanation:

Answer:

Huh? I guess it's

Explanation:

Answer:

Answer:

Explanation:

Procrastination is a plague to which we are all susceptible. Essentially, procrastination is the avoidance of work or necessary tasks by focusing on more satisfying activities. It’s easy to chalk procrastination up to a lack of self-motivation, lazy habits or incompetence. But in reality, procrastination is chemical; there’s a science to why we prefer relaxing activities to the required.

Procrastination boils down to a battle between the limbic system and the prefrontal cortex. The limbic system is a set of brain structures containing the pleasure center, while the prefrontal cortex controls planning and decision making. The prefrontal cortex is less developed and thus weaker, so often times the limbic system wins out, leading to procrastination.

Answer:

Pressure Differences occur as result of heating differences

Explanation:

Pressure differences usually occur as a result of heating differences ... most heat is contained near the equator, where most of the heating occurs

The molarity of the acetic acid, HC₂H₃O₂ solution is 0.244 M

We'll begin by writing the balanced equation for the reaction

HC₂H₃O₂ + KOH —> KC₂H₃O₂ + H₂O

From the balanced equation above,

The mole ratio of the acid, HC₂H₃O₂ (nA) = 1

The mole ratio of the base, KOH (nB) = 1

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

Volume of the acid, HC₂H₃O₂ (Va) = 25 mL

Volume of the base, KOH (Vb) = 29.7 mL

Molarity of the base, KOH (Mb) = 0.205 M

MaVa / MbVb = nA/nB

(Ma × 25) / (0.205 × 29.7) = 1

(Ma × 25) / 6.0885 = 1

Cross multiply

Ma × 25 = 6.0885

Divide both side by 25

Ma = 6.0885 / 25

Therefore, the molarity of the acetic acid, HC₂H₃O₂ solution is 0.244 M

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Answer:

The radiation has enough energy to knock electrons off some atoms of a bombarded substance producing ions.

Explanation:

Answer:

C + 2H2 ⇒ CH4

Explanation:

In order to balance a chemical equation you need to make sure that the number of atoms on both sides are equal

C + H2 = CH4

C = 1

H = 2

Products:

C = 1

H = 4

H2 = 2 × 2 = 4

C + 2H2 ⇒ CH4

Hope this helps.

Answer:

salinity

Explanation: guess