please help me i’m in need!

Answer:

i dont no

Explanation:

i need answer please

Answer:

Explanation:

Is k2s a soluble in water?

Potassium Sulfide is a moderately water and acid soluble Potassium source for uses compatible with sulfates.

odium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations Na⁺ and hydroxide anions OH⁻ .

Answer:

5.13x10>-2

Explanation:

The enthalpy of solution is the heat evolved or absorbed in solution. From the  calculations performed, the enthalpy of solution is 3.2°C.

The term heat of solution refers to the heat evolved or absorbed when a substance is dissolved in water.

Number of moles of NaNO3 = 6.10 g/85 g/mol = 0.07 moles

Heat absorbed =  20.4 kJ/mol * 0.07 moles = 1.43 kJ

Mass of solution = 1.02 g/mL * 100 mL = 102 g

Mass of system = 102 g +  6.10 g = 108.1 g

Heat capacity of solution = 4.184 J/g･°C

From;

H = mcdT

1.43 * 10^3 J = 108.1 g * 4.184 J/g･°C * dT

dT =  1.43 * 10^3 J/108.1 g * 4.184 J/g･°C

dT = 3.2°C

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Answer:

Monosaccharides. Carbohydrates are the most abundant biomolecule on Earth. Living organisms use carbohydrates as accessible energy to fuel cellular reactions and for structural support inside cell walls. Cells attach carbohydrate molecules to proteins and lipids, modifying structures to enhance functionality.

Explanation:

Answer:

Since one banknote has a thickness of about 0.1 millimeters, if all the banknotes produced in a year were stacked up, they would reach a height of approximately 300 kilometers, which is about 80 times the height of Mount Fuji.

Answer:

same bud same

Explanation:

tttt5566555tggf and I don't

A Venn Diagram is a graphical tool that provides information about the relationship between things.

A Venn Diagram is a graphical illustration using circles to show the relationship between two or more things.

In a Venn Diagram, the items that two things share in common are represented by a region in which the two things intersect.

The items that are exclusive to each thing is shown in regions where the circles are separate.

Thus, a Venn Diagram provides information about the relationship between things.

Learn more about Venn Diagram at: https://brainly.com/question/1024798

Answer : The concentration of the HCl in original bottle is 0.56 M.

Explanation :

According to neutralization law:

[tex]M_1V_1=M_2V_2[/tex]

where,

[tex]M_1[/tex] = concentration of  HCl

[tex]M_2[/tex] = concentration of NaOH

[tex]V_1[/tex] = volume of HCl

[tex]V_2[/tex] = volume of NaOH

Given:

[tex]M_1[/tex] = ?

[tex]M_2[/tex] = 0.25 M

[tex]V_1[/tex] = 10 mL

[tex]V_2[/tex] = 22.4 mL

Now put all the given values in the above formula, we get:

[tex]M_1\times 10mL=0.25M\times 22.4mL[/tex]

[tex]M_1=0.56M[/tex]

Therefore, the concentration of the HCl in original bottle is 0.56 M.

The correct answer would be 48 Ti

The question is incomplete; the complete question is;

Using a triple beam balance and a graduated cylinder, a student collected data on a sample of an element:

Mass of sample = 18.9 g

Volume of water = 30.0 mL

Volume of water and sample = 35.0 mL

Calculate the density of the sample using sig figs.

Answer:

3.8 g/mL

Explanation:

Mass of sample = 18.9 g

Volume of water = 30.0 mL

Volume of water and sample = 35.0 mL

Volume of the sample = 35.0 mL – 30.0 mL = 5.0 mL

D = m/v

D = 18.9 g / 5.0 mL =3.8 g/mL

Answer:

D

Explanation:

Answer:

The similarity is that Elements and Compunds exist in stable form because of the bonds formed between their atoms. The difference is that an element is a material that consists of a single type of atom and a compound consists of two or more types of elements held together by covalent or ionic bonds.

Explanation: Google

Answer:

I am thinking it is woody based off of what I've seen and read.

Answer:

A -floods

Explanation:

When the Glaciers melt it causes water

Answer:

kais#+2==€=

so?×¢ ×€✓($8;™+38$-?

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[tex]\small\mathbb\green{they \: are \: two \: types \: of \: raise \: awareness}[/tex]

1) Throw an Event

2) Amp up Social Media

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Answer: The length of the object is 5.6 cm.

Explanation:

Explanation:

wish I could help but I'm lost

Answer: 6.788

Explanation: Water expands 9% when frozen and if the baloon is filled with all 6.2-L then its just 9% of 6.2 which is 0.588 then add it toghether unless your asking something else becuase im not smart and I can't even divided. :p

Answer:

The answer is solar cell.

Explanation:

It’s the smallest of the 4 choices, the smaller it is the less it wastes.

Answer:

Explanation:

solar cell

Answer:

You Just Have To Be Yourself To Succeed

Your difference is a strength that you will have to learn to exploit to your advantage. Thus, you should not compare yourself to others because it is a behavior that can only slow you down in your progress. Indeed, everyone progresses at their own pace in life. Your unique and beautiful just the way you are, you don't have to change yourself because of people are judging you. You just have to be yourself!

Explanation:

Answer:

The name of the smallest atom is Hydrogen

Explanation:

It's the first atom in the periodic table, meaning it has the least protons or electrions, I forgot.

What is the first organic compound prepared in laboratory?

➪ Urea was the first organic compound which was synthesised from inorganic chemicals. Fredrich Wohler is known for the synthesis of Urea. He formed the compound with ammonium cyanate, an inorganic salt.

Answer:

Urea

Explanation:

It drawbacked the theory organic compounds can't be prepared artificially

Answer:

The answer is 30%

Answer:

Me!!!

Explanation:

Answer:

14

Explanation:

Neutrons are neutral and if there are no electrons to cancel out the protons you add the neutrons and protons together

Answer:

Explanation:

Carbon and water = carbon dioxide and hydrogen

Answer:

Explanation:

So, Total amount of time = 3 × ( Half - life of Sodium - 24 ) = (3 × 15 h) (3 × 15 h) = 45 h. So, 45 h is three half - lives .