The diagram below shows the Moon at four positions in its orbit around Earth

An observer on Earth could see a solar eclipse when the Moon is at position

Answer:

a theory of a experiment and the experiment acts like a judge determining if the hypothesis is right or wrong from the final test result

Explanation:

Answer:

Explanation:

how do u draw on here

Answer:

B is correct.

Explanation:

A vaccination will trigger the organism to prepare antibodies as a measure of protection against a sickness.

If 25.0ml neutralizes 35.0 ml of a 0.200M HCl solution, the molarity of KOH solution is 0.28M

The reaction between KOH solution and HCl is written below.

[tex]HCl + KOH \rightarrow KCl + H_2O[/tex]

Volume of KOH, [tex]V_B[/tex] = 25.0 ml

Volume of HCl, [tex]V_A=35.0 ml[/tex]

Molarity of HCl, [tex]C_A=0.200 M[/tex]

Molarity of KOH, [tex]C_B=?[/tex]

Number of moles of HCl, [tex]n_A=1[/tex]

Number of moles of KOH, [tex]n_B=1[/tex]

The mathematical equation for neutralization reaction is:

[tex]\frac{C_AV_A}{C_BV_B} =\frac{n_A}{n_B}[/tex]

Substitute  [tex]C_A=0.200 M[/tex],  [tex]n_A=1[/tex],  [tex]n_B=1[/tex],  [tex]V_B[/tex] = 25.0 ml, and  [tex]V_A=35.0 ml[/tex] into the equation above in order to solve for [tex]C_B[/tex]

[tex]\frac{0.2 \times 35}{C_B \times 25}=\frac{1}{1} \\\\25C_B=7\\\\C_B=\frac{7}{25} \\\\C_B=0.28M[/tex]

Therefore, the molarity of KOH solution is 0.28M

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A reversible reaction is a reaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously.

[tex] \large \sf \pink{hopefully ♡♡}[/tex]

Answer:

what is your question tell may i can help you

Answer:

decrease as we go down a group I know ionisation energy increases from left to right across the periodic table

The statement is a false.

An acid is a substance which when dissolved in water, produces hydroxonium ion, as the only positive ion.

Some properties of acid include:

There are two types of acids which includes:

Examples of weak acid is acetic acid and tartaric acid.

They can be used as food substances like vinegar and naturally occurs on fruit like banana or grape.

Therefore, weak acids such as acetic acid and tartaric acid can be tasted.

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The given statement is False.

Some acids like acetic acid and tartaric acid can be tasted.

Organic acids, such as acetic, citric, malic, and fumaric acids in fruits and vegetables, and tartaric acid in wine, contribute significantly to the sour flavor of foods and beverages. Many inorganic acids taste sour in dilute solutions.

Tartaric acid is fairly water soluble and has a pronounced tart flavor. Tartaric acid is present naturally in grapes and bananas and has been shown to improve the flavor of grape and lime-flavored beverages. Tartaric acid may aid in the treatment of glucose intolerance and digestion.

Acetic acid is a colorless liquid having a sour flavor. Although it is most frequently associated with vinegar, this acid has a wide range of different applications in a variety of industries. Acetic acid is a colorless liquid that is composed of chemical compounds.

To know more about Acetic acid,

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Answer:

5.24 x 10^23

Explanation:

Avogadro's constant is 6.02 x 10^23

1 mol = 6.02 x 10^23

0.87 mol = 6.02 x 10^23 x 0.87 = 5.24 x 10^23 (2.d.p)

Answer:

the Aluminium Al have +3 charges and idion have I) have - 2 charges

Answer:

Ans:

*Carbohydrates

*Proteins

*Cholesterol

Explanation:

The plasma membrane is a structure that has several distinct roles in the cell

The plasma membrane is mainly composed of the phospholipid Bilayer, which is a layer of two sheets located in the internal and external parts. The Phospholipids are said to be Amphipathic because they have both properties of Hydrophobic and hydrophilic

*The Carbohydrate Molecules attach to the Plasma Membrane such as to the lipids and Proteins:

when They attach to the Proteins, they are known as glycoproteins, and they help in cell recognition, when they attach to the lipids, they are known as Glycolipids

*Protein Molecules play an important role in transport system such as Carrier Proteins

*Cholesterol Molecules help in balancing the Fluidity of the plasma membrane

hope this was of use

Answer: The answer is 6  

1) Simplify  -3+6  to  3.

2×3

And then Simplify.

6

Sorry if im wrong

try putting 66 grams CO2 for answer

Answer:

i think it is FALSE.

Explanation:

good luck

Answer:

Chemical bonds

Explanation:

Chemical bonds are forces that hold atoms together to make compounds or molecules. Chemical bonds include covalent, polar covalent, and ionic bonds. Atoms with relatively similar electronegativities share electrons between them and are connected by covalent bonds.

Answer:

D

Explanation:

braineist pls???????????

Answer:

C

Explanation:

gram is bigger than atom duh

Answer:

e. Mg.

Explanation:

Answer:

[tex]mg[/tex]

is the answer to your question

Answer:

Magnesium Nitrate is an ionic compound formed by:

Magnesium;Mg+2 (the cation) and Nitrate NO−3 (the poly-atomic anion).

In order for these two ions to bond, the charges must be equal and opposite. Therefore, it will take:

     two -1 nitrate ions to balance the one +2 magnesium ion.

Tartaric acid is the white, powdery substance that coats tart candies such as Sour Patch Kids. COmbustion analysis of a 12.01g sample of tartaric aid, which contains carbon, hydrogen and oxygen, produces 14.08g CO2 and 4.32g

H2O.

i would know because i have see what there made of

The 10 karat of gold formed by melting gold with other metals is described as homogeneous mixture.

A pure substance is a substance that is made up of only one kind of particle. This type of substance consist of only one element.

A heterogeneous substance is a type of substance that is made up two or more substances existing in different phases.

A homogeneous substance is a type of substance that is made up of two or more substances evenly mixed. This type of substance exist only in one phase.

Thus, the 10 karat of gold formed by melting gold with other metals is described as homogeneous mixture.

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Answer:

homogeneous mixture

Explanation:

Answer:

1.81 x [tex]10^{24}[/tex] molecules H2

Explanation:

Use Avogadro's number:

3 moles H2 x 6.022 x [tex]10^{23}[/tex] molecules= 1.81 x [tex]10^{24}[/tex] molecules H2

Answer:

I think you may have chosen the wrong subject for your question, besides where is the context to this?

Answer:

I cant see the questions can u do a picture zoomed in, thanks :)

Explanation:

Answer:

B. atomic mass

Explanation:

He arranged the elements into rows in order of increasing mass so that elements with similar properties were in the same column.

Answer: 5.5 7.5 102

Explanation: using the equation above you can get these %s

Answer:

A reactant is a substance that is present at the start of a chemical reaction. A product is a substance that is present at the end of a chemical reaction.

Explanation:

Answer:

As a substance changes from a solid to a liquid to a gas, its molecules first the molecules are moving fast enough, they are able to "escape." They leave the surface of the liquid as gas molecules. Evaporation is not the only process that can change a substance from a liquid to a gas. The same change can occur through boiling.

Explanation:

hopfully this helps!

The relationship between acceleration due to gravity (g), mass of earth (M) and the radius of earth (R) is [tex]g = \frac{GM}{R^2} [/tex].

The weight of an object is determined as the product of the object's mass and acceleration due to gravity.

F = mg

The gravitational force between two objects in the universe is directly proportional to the product of mass of the objects and inversely proportional to the square of the distance between the objects.

[tex]F = \frac{GmM}{R^2} [/tex]

[tex]mg = \frac{GmM}{R^2} \\\\ g = \frac{GM}{R^2} [/tex]

where;

M is the mass of the earth

R is the radius of the earth

Thus, the relationship between acceleration due to gravity (g), mass of earth (M) and the radius of earth (R) is [tex]g = \frac{GM}{R^2} [/tex].

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Answer:

The answer is San Jose

Explanation:

Liquid-based lubricant

Answer:

study island : food service equipment

Explanation: