a solution contains 100.0 g water, 10.0 g nacl, and 15.0 g methanol. what is the weight percent of methanol in the solution?

Answer:

5g NaOH

Explanation:

Enantioselective are reactions that generate products that are enriched in one enantiomer.

Enantiomers are pairs of molecules that exist in two forms that are mirror images of each other but are not superimposable. The enantiomers are chemically identical in all other respects. Enantiomeric pairs are distinguished by the direction in which they rotate polarized light when dissolved in solution, either dextrorotatory (d or +) or levorotatory (l or -). Hence the term optical isomer.

The enantioselectivity of a chromatography system is defined as the preferential interaction of one enantiomer with a chiral selector. It is usually determined as the ratio of the retention factors of the two enantiomers in a chiral chromatography or electrophoresis system.

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Answer:

D "Before the process, the substance was a liquid. After the process, it was a gas.

Explanation:

hope this helps.

According to the forces of attraction , before the process substance was liquid and after the process it was a gas as gas molecules are farther away than those in liquid.

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion and an atom as well.It varies for different  states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

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Gravity, as a fundamental force of nature, is influenced by several factors. The following are some of the key factors affecting gravity:

The magnesium is the anode of a magnesium and zinc galvanic cell.

The magnesium is the anode means the site of oxidation, where magnesium ions flow into solution. Here the electrons leave the electrode and flow through the voltmeter as they move to the zinc cathode.

While on the other hand, zinc is the cathode i.e. the site of reduction, where zinc ions flow onto the electrode in order to pick up electrons so we can conclude that magnesium is the anode of a magnesium and zinc galvanic cell.

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Answer:ANSWER IS MG(s)

Explanation:

State​ physical property can be used to distinguish between a 1 cm cube of copper and a 1 cm cube of sugar. Hence, option D is correct.

A property (such as colour, hardness, boiling point) of the matter is not involved in its manifestation of a chemical change.

Physical properties are those general properties you notice most readily about a substance, such as its size, state of matter (solid, liquid, or gas), colour, mass, density and strength.

Values for physical properties can be determined by tests that don't alter the substance being tested.

Hence, state​ physical property can be used to distinguish between a 1 cm cube of copper and a 1 cm cube of sugar.

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Since this is a single replacement reaction, the equation for the reaction is:

\(\text{Mg}+\text{H}_{2}\text{SO}_{4} \longrightarrow \text{MgSO}_{4}+\text{H}_{2}\)

From this, we know that for every mole of magnesium consumed, 1 mole of hydrogen is produced.

The atomic mass of magnesium is 24.305 g/mol, so 72 grams of magnesium is 72/24.305 = 2.9623534252211 moles.

This means we need to find the mass of 2.9623534252211 moles of hydrogen.

Hydrogen has an atomic mass of 1.00794 g/mol, so doubling this to get the formula mass of of \(\text{H}_{2}\), we get 2.01588 g/mol, which his a mass of:

(2.01588)(2.9623534252211). which is about 5.97 g

According to Boyle's law, the pressure of a fixed amount of gas at a constant temperature is inversely proportional to its volume.

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Lithium Iodide:

~formed by the reaction of hydroxide with hydroiodic acid

Hope this helped you, have a good day bro cya)

The product of an acid-base reaction that is most likely to be an ionic compound is a salt. Option D).

In an acid-base reaction, the product that is most likely to be an ionic compound is a salt. A salt is formed when an acid reacts with a base, resulting in the transfer of ions between the two reactants. Acids typically release hydrogen ions (H+) when dissolved in water, while bases release hydroxide ions (OH-). When these ions combine, they form water (H2O), which is a neutral molecule.

However, in addition to water, the reaction between an acid and a base also produces a salt. A salt is an ionic compound composed of positive and negative ions. The positive ion usually comes from the base, while the negative ion comes from the acid. The combination of these ions results in the formation of an ionic compound, which is commonly referred to as a salt.

Therefore, the product of an acid-base reaction that is most likely to be an ionic compound is a salt. Hence option D) is correct.

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Elements in the same group have the same valence electron configuration.

The best explanation for the observation that elements in the same group of the periodic table often exhibit similar chemical reactivity is that they have the same valence electron configuration.

The chemical behavior of an element is primarily determined by the arrangement and number of electrons in its outermost energy level, known as the valence electrons.

Elements in the same group have similar valence electron configurations because they have the same number of valence electrons.

Valence electrons are responsible for forming chemical bonds and participating in chemical reactions.

Elements with the same valence electron configuration tend to have similar chemical properties because they have similar tendencies to gain, lose, or share electrons to achieve a stable electron configuration.

For example, elements in Group 1 (such as lithium, sodium, and potassium) all have one valence electron in their outermost energy level.

As a result, they exhibit similar reactivity, readily losing that one valence electron to form a +1 ion.

In contrast, elements in Group 17 (such as fluorine, chlorine, and bromine) have seven valence electrons. They tend to gain one electron to achieve a stable electron configuration of eight electrons, forming -1 ions.

In summary, the similar chemical reactivity observed among elements in the same group of the periodic table can be attributed to their having the same valence electron configuration, which influences their ability to form chemical bonds and participate in reactions.

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Answer:

One atom lf helium has a mass of 4 u

Know that 1 u =1.66. 10-24g

Answer:

-a-D-Maltose is a disaccharide composed of two glucose molecules linked together by a glycosidic bond. The two glucose molecules are linked together in an alpha-1,4-glycosidic bond, meaning that the anomeric carbon of the first glucose molecule is linked to the fourth carbon of the second glucose molecule. The two glucose molecules are also in the D-configuration, meaning that the hydroxyl group on the anomeric carbon of the first glucose molecule is on the right side when viewed from the bottom of the molecule.

Explanation:

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Answer: The speed of the wave is 5.307 meters per second.

Explanation: The speed of a wave can be calculated using the equation:

speed = wavelength / period

Substituting the given values:

speed = 69 m / 13 s

Simplifying:

speed = 5.307 m/s

Answer: a double replacement

Explanation:

Grasses and plants are producers, guanacos are herbivores and are primary consumers and pumas are predators and secondary consumers

Answer:

When you add so much solute that no more dissolves you have a SATURATED SOLUTION.

Answer:

iIt is called as point of saturation or saturated solution

Answer: B) Sperm

Explanation:  For lazy gang wya Lol

The release of neurotransmitters into the synapse is initiated by depolarization, which opens Ca2+ channels, allowing Ca2+ to move vesicles to the synaptic membrane.

This is the correct answer.When an action potential (AP) arrives at the axon terminal, it results in the opening of voltage-gated Ca2+ channels. The influx of Ca2+ into the nerve terminal causes the exocytosis of neurotransmitter-containing vesicles into the synaptic cleft. Calcium influx is thought to trigger neurotransmitter release via a mechanism that involves Ca2+ binding to the vesicle-associated protein synaptotagmin 1 (Syt1), which promotes the interaction of vesicles with the presynaptic membrane.The entry of Ca2+ through voltage-gated calcium channels is critical for neurotransmitter release, and its absence leads to severe neurological disorders such as ataxia and epilepsy. Calcium ion (Ca2+) is one of the most crucial signaling molecules in cells and is essential for many physiological functions, including neurotransmitter release. Calcium ions activate synaptic vesicle fusion and neurotransmitter release by binding to specific proteins in the active zone of the nerve terminal.

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The effective multiplication factor of a reactor is 0.94. a) reactivity =0.0638, b)k=1

What is reactivity ?

responsiveness as a quality or state. Chemistry. the similarity between one atom, molecule, or radical's capacity to chemically interact with another atom, molecule, or substance.

Reactor: What is it?

Reactor: A container or piece of machinery utilised in chemical engineering to carry out chemical reactions for study or manufacturing.

(a) The multiplicative efficiency is k=0.94.

Rho = frac k-1 k = -0.0638 is the reactivity.

(b) K = 1, meaning that the reactor must have a higher core reactivity in order to reach criticality.

Consequently, k=0.94 is the actual multiplication factor.

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1 mole of any gas at standard temperature and pressure (273 K and 1 atm) occupies a volume of 22.4 L.

Answer:

They are products because they are present after the reaction.

Explanation:

A chemical reaction refers to any interaction between two or more chemical species that leads to the formation of new chemical species. The species that interacted with each other are called reactants. They were present before the reaction commenced. The species that were formed after the interaction are called products. They only appear after the reaction.

In cellular respiration, carbon dioxide and water appear after the chemical reactions that take place, hence they are products.

Answer:

They are products because they are present after the reaction.

Explanation:

Step-by-step explanation:

The number of carbon atoms present in the structure is 5

Each carbon atom carry four hydrogen atoms

The above organic structure is Pentane

Having a molecular formula of C5H12

N h as 5 valence electrons, O has 6 valence electrons. Adding them up, you get 11 total electrons to be represented in the lewis structure. Electrons are represented in pairs, so there will be one lone electron in the lewis structure of NO. Molecules with an odd number of valence electrons are also called radical.

Answer:

Nitrogen has 7 protons and 7 electrons and 7 neutrons.

Explanation:

The atomic number of an element is the number of electrons and protons they have. The atomic mass - the atomic number of an element equals the number of nuetrons. The atomic mass of nitrogen is 14 and the atomic number is 7 therefore we have to subract, 14-7=7.

Answer:

1d and 2d is the answer. Hope it helps

Answer:

SO 4. IS  he has small dicke

:D happy to help

Explanation: