What is the mass density of water? what is the weight density of water?

Answer:

One way an animal may adapt to the environment and change characteristics is for example lizards. Lizards are preyed on by birds and other small mammmals. To avoid this some lizards have adapted to color changes or camofaluge.

Explanation:

Answer:

take a octopus for example, they change thw color of their skin to match their environment to stay hidden.

Explanation:

or take a decomposing plant for example, they mimik the process of decomposing to draw animals away

The ion released by alka-seltzer to change the pH of the solution is the hydroxide ion (OH-). When alka-seltzer is added to water, it undergoes a chemical reaction that releases hydroxide ions.

These hydroxide ions then react with the water molecules, resulting in an increase in the concentration of hydroxide ions in the solution. This increase in hydroxide ion concentration leads to an increase in pH, making the solution more basic. The pH scale ranges from 0 to 14, with a pH of 7 considered neutral, values below 7 acidic, and values above 7 basic.

Since the final pH of the solution after adding alka-seltzer is 8.3, it indicates that the solution has become more basic due to the release of hydroxide ions. In summary, when alka-seltzer is added to water, it releases hydroxide ions, which react with water to increase the concentration of hydroxide ions and raise the pH of the solution. When alka-seltzer is added to pure water, it dissolves and undergoes a chemical reaction. This reaction results in the release of hydroxide ions (OH-) into the solution.

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Answer:

Carboxylic acid group

Explanation:

Carboxylic acid and amine groups form the basis of an amino acid.  One group reacts with the other group on a neighboring amino acid to form the peptide bond, with the release of a water molecule.

The total binding energy for lithium is 39.25 Mev

The binding energy per nucleon for lithium is 5.61 Mev / nucleon

    Binding energy is the total energy required for the breakdown of a nucleus to its component nucleons

    Total binding energy is the amount of energy released when the atom is formed from its constituent electron, protons and neutrons.

The given mass are lithium is 7.016004 u  and hydrogen is 1.007825

There are 3 hydrogen and 4 neutrons

To calculate the Total binding energy

3 ( 1.0782) +  4 ( 1.008665 ) = 7.058135 u

Mass of neutron is 1.008665 u

1 atomic mass unit is 931.5 Mev

TBe = ( 7.058135 - 7.016004 ) × 931.5

       = 39.25 Mev

Total binding energy is 39.25 Mev

BE= 39.25 / 7

    = 5.61 Mev / neucleon

Hence, The total binding energy is 39.25 Mev.

             The binding energy is 5.61 Mev / neucleon.

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Answer:

most of its mass is in the nucleus

Explanation:

the nucleus consists of protons and nutrons

Answer:because they run out of energy when it is transferred and to other objects, or their kinetic energy

Explanation:

The mass of 22.85 g of sodium hydroxide with 20.82 g of hydrogen chloride produces 10.29 g of water and X g of sodium chloride is 33.389 g.

To find the mass of Sodium Chloride, NaCl, we must write the reaction between sodium hydroxide and hydrogen chloride. The balanced chemical equation. NaOH + HCl → NaCl + H₂O

Using the balanced chemical equation and the Law of Conservation of Mass, we can write the equation:

Mass of NaOH = 22.85 g

Mass of HCl = 20.82 g

From the balanced equation:

Number of moles of NaCl formed = Number of moles of HCl used = 0.57041 mol

Molar mass of NaCl = 23 + 35.5 = 58.5 g/mol

Mass of NaCl formed = Number of moles of NaCl formed × Molar mass of NaCl

= 0.57041 mol × 58.5 g/mol

= 33.389 g

Therefore, the mass of sodium chloride, NaCl, formed is 33.389 g.

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Force and gravity work together with simple objects exert an equal attractive force

Gravity or gravitational force is the force of attraction between any two objects in the universe and the force of attraction depends on the mass of the object and the square of the distance between them and it is by far the weakest known force in nature the size of the gravitational force is proportional to the masses of the objects and weakens as the distance between them increases and both objects exert an equal attractive force on each other and falling object is attracting the earth with the same size force as the earth is attracting it

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1.3188 liters of the 133 ppm NH₃ solution with a density of 0.998 g/ml is required to provide 0.0175 grams of ammonia (NH₃).

The volume of a solution is the amount of space that the solution occupies. To calculate the volume of a certain solution, you can use the formula: volume = (mass of solute / (concentration of solute x density of solution)) x 10⁶. In this case, the solute is ammonia (NH₃), the concentration of NH₃ is 133 ppm, and the density of the solution is 0.998 g/ml.

To find out how much volume is needed to provide a certain mass of NH₃, we can substitute the given values into the formula.

volume = mass in grams / concentration in ppm × density of solution × 10⁶

volume = (0.0175 / (133 x 0.998)) × 10⁶

volume = 1.3188 liters

This means that 1.3188 liters of the 133 ppm NH₃ solution with a density of 0.998 g/ml is needed to contain the desired mass of NH₃.

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Answer:

An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An ethothermic process absorbs heat and cools the surroundings. Hope this helped.

The easiest way to explain endo and exothermic reactions are that endothermic reactions absorb energy and exothermic reactions release energy.

The way I remember this is that with exothermic reactions, the heat exits. Endothermic is just the opposite.

Hope this helps :)

Answer: B. Hydrogen Bonding

Explanation: I got it right on castle learning lol

There are different kinds of forces. The term that identifies a type of intermolecular force is hydrogen bonding.

The three known to be types of intermolecular interactions. They  are

Hydrogen bonding is known to be an intermolecular force that takes place between two molecules. That molecule is known to have a hydrogen atom be bonded to a nitrogen, oxygen, or fluorine atom.

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Answer:

Tetraselenium tetranitride

Common Name Tetraselenium tetranitride

CAS Number 12033-88-4 Molecular Weight

Density N/A Boiling Point

Molecular Formula Se4N4 Melting Point

MSDS N/A Flash Point

Chemical formulas are the representation of the chemical elements with their symbols. The chemical formula for the tetraselenium tetranitride compound is S₄N₄.

A chemical formula is the representation of the chemical molecule and compound by their symbols and the number of the constituent in the structure. It is represented by the use of the chemical symbol, numbers in superscript and subscript, parentheses, and signs like - and +.

The chemical formula for the tetraselenium tetranitride compound must contain the element symbol of selenium (S) and nitride (N). There are four numbers of both the elements and hence can be represented by, S₄N₄.

Therefore, S₄N₄ is the chemical formula for tetraselenium tetranitride.

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Answer:

Explanation:-

hope it is helpful to you

Answer:

Quickly

Explanation:

Answer: oh i thought i knew it nvm im sorry love

Explanation:

A, the total number of valence electron is 24 for Silicon Tetrachloride , SiCl₄ .

In Lewis Dot structure S=N-A is used to calculate the total number of shared and unshared electrons in a molecule.

S is the number of shared electrons ,N is the number of total valence shell electrons required by all the atom of the molecule, A is the total number of valence electrons available from all the atoms in the molecule

For SiCl₄,

• We have to first count the valence electron on each atom that is coming to form a molecule .

Valence electron on Si = 4

Valence Electron on Cl = 7

Total valence electron on SiCl₄ = 4+ 4 * 7 = 32

• Then we find the least electronegative atom in the molecule and place it at the center , In SiCl₄ , Si has 1.8 and Cl has 3.16 and so Si is placed at the center and four Cl atoms are connected with a single bond

• A single bond takes up 2 valence electron and so for four bonds 8 valence electrons have been occupied , so we are left with 32-8=24 valence electrons.

Therefore In the Lewis Dot structure S=N-A , Total number of valence electrons available from all the atoms in molecule of SiCl₄ is 24.

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Answer:

D - g/mol

step by step method

Answer: 5 protons 6 neutrons and 5 electrons. and atomic number is 5.

Hope this helps!

Answer:

C

Explanation:

it demonstrated that scientific understanding was always changing

Answer:

\(\boxed{\small \sf \: Mass \: of \: H_2O =322.2 \: grams}\)

Explanation:

Given:

Mass of ferous (Fe) produced = 750 gram.

To find:

Mass of water produced= ?

Solution:

Molar mass of Fe is 55.84 gram/mol

Let's find out the number of moles of ferous produced.

\( \small \sf Number \: of \: moles = \frac{Given \: mass \: of \: substance }{Molar \: mass \: of \: substance} \)

Substituting the given data in above formula.

\( \small \sf Number \: of \: moles = \frac{750}{55.84} \)

\( \boxed{\small \sf Number \: of \: moles \: of \: Fe= 13.43 \: moles}\)

Now the given reaction is,

\(Fe_3O_4 + 4H_2 \rightarrow 3Fe + 4H_2O\)

now calculate the number of moles of H2O

\( \sf \: \frac{3}{4} = \frac{13.43}{x} \\ \sf x = \frac{13.43 \times 4}{3} \\ \sf x = 17.90 \: moles\)

\( \small \boxed{\sf number \: of \: moles \: of \: H_2O= 17.90 \: moles}\)

mass of one mole of H2O is 18 gram, so we can calculate mass of 17.90 moles.

\(\small \sf \: Mass \: of \: H_2O = 17.90 \times 18 \\ \boxed{\small \sf \: Mass \: of \: H_2O =322.2 \: grams}\)

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There are also 6 oxygen atoms in the products. This is because the products of the photosynthesis reaction include C6H12O6 (glucose) and 6O2 (oxygen gas). The glucose molecule contains 6 carbon, 12 hydrogen, and 6 oxygen atoms.

In the photosynthesis reaction, 6CO2 + 6H2O → C6H12O6 + 6O2, there are 18 oxygen atoms in the reactants.

Therefore, the total number of oxygen atoms in the products is 6. This is because oxygen gas is not bonded to anything else and is released into the atmosphere as a product of photosynthesis.

The reactants of photosynthesis, carbon dioxide (CO2) and water (H2O), are converted into glucose (C6H12O6) and oxygen (O2) gas. In this process, sunlight energy is converted into chemical energy that is stored in glucose, which is used by the plant for growth and other metabolic processes. Therefore, photosynthesis is a crucial process for life on earth.

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Answer:

The picture on the right with more circles inside of it is more dense

Explanation:

By dilution, 275 mL or 0.0224 MgF2 solution can be created from 69.4 mL of 0.0887 MgF2 solution.

By adding extra more solvent, such as water, to the solution, dilution is indeed the process of "reducing the concentration of the solute in a solution." A solution is diluted by adding additional solvent without also adding more solute.

An approach used frequently to achieve this concentration reduction is serial dilution. diluted homeopathy. An equation called "dilution" can be used to determine how quickly a gas diluted. A sort of unauthorized trademark usage outside the relevant market is trademark dilution.

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Answer:

B.) –197.8 kJ

Balanced equation : 2SO₂(g) + O₂(g) → 2SO₃(g)

Given:

================================================================

products energy = reactant energy

-593.6 + O₂ = -791.4

O₂ = -791.4 - ( -593.6)

O₂ = –197.8 kJ

The formula of the molecule made by adding one fructose to a molecule of lactose is C24H42O21.

When fructose is added to lactose, a glycosidic bond forms between the fructose and lactose molecules. Lactose is a disaccharide consisting of one molecule of glucose and one molecule of galactose, linked by a β-glycosidic bond. Fructose, on the other hand, is a monosaccharide. The addition of one fructose molecule to lactose results in the formation of a trisaccharide. The fructose molecule attaches to the lactose molecule at the hydroxyl group of either the glucose or galactose unit, forming a new glycosidic bond.

The formula of the resulting molecule, C24H42O21, represents the combined molecular formula of the fructose, glucose, galactose, and the water molecule that is released during the formation of the glycosidic bond. This trisaccharide retains the general structure and properties of its constituent sugars but possesses a unique arrangement due to the formation of the glycosidic bond.

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Answer:

2689.4

Explanation:

Answer: s - stable

i - unstable

th - unstable

Explanation: only the first has the same number of neutrons as protons (i hope this is right i’m just a sophomore chem student lol)

\(n=\dfrac{m}{M}\) where n is moles, m is mass and M is molar mass.

To solve for mass, isolate m:

\(m=nM\)

Input given information:

\(m=5.8*58.44\\m=338.952\\m=340\)

There are 340 g in 5.8 mol of NaCl.

Many acid contain two or more ionizable hydrogen. There are two in carbonic acid H₂CO₃ and three in phosphoric acid H₃PO₄. For any such multiple hydrogen acid the first hydrogen is easily removed and the last hydrogen is removed with great difficulty.

Polyprotic Acid is a chemical that can donate more than one proton. Diprotic and Triprotic are two distinct varieties of polyprotic acid that can, respectively, donate two and three protons.

Depending on how frequently dissociation takes place, polyprotic acids have a variety of dissociation constants, including Ka1, Ka2, Ka3, and equivalence points.

Examples:

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