Chemistry High School

I need more help on the other chart please
Calculating pH
see chart below

I Need More Help On The Other Chart PleaseCalculating PHsee Chart Below

Answers

Answer 1

Answer:

2, acidic, 5, acidic

Explanation:

pH = -log[H+], where [H+] is the concentration of H+.

Using the data in the table, you can calculate the pH:

-log[1e-2] = 2

-log[1e-5] = 5

To find out whether it is acidic, basic, or neutral, use a pH scale. Anything less than 7 is acidic, anything over is basic. Knowing this, both (except the middle, which you did correctly) are acidic.

;)

Related Questions

3. Explain why ionic compounds are "fixed" in their chemical composition.

Answers

Answer: Ionic compounds are "fixed" in their chemical composition as forces present between atoms of these compound are strong electrostatic forces of attraction due to which these compounds have fixed chemical composition.

Explanation:

Compounds formed by transfer of electrons from one atom to another are called ionic compounds.

For example, sodium atom on losing its one valence electron forms [tex]Na^{+}[/tex] ion and when a chlorine atom gains this electrons then it forms [tex]Cl^{-}[/tex] ion. These ions when come closer then an electrostatic force of attraction will pull them together forming NaCl compound.

Therefore, one atom of sodium is chemically combining to one atom of chlorine to form NaCl.

As the forces present between atoms of an ionic compound are strong electrostatic forces of attraction due to which these compounds have fixed chemical composition.

Thus, we can conclude that ionic compounds are "fixed" in their chemical composition as forces present between atoms of these compound are strong electrostatic forces of attraction due to which these compounds have fixed chemical composition.

Ionic compounds are formed when there is a donation of an electron from one element to another that receives the electron. This causes the donating atom to attain a positive charge and the receiving atom to attain a negative charge. The ions thus formed are held by strong electrostatic forces that hold them together.

Ionic bonds are formed through the transfer of electrons from one element to another which receives the electron.

Positive and negative ionic charges are thus acquired by the respective elements. Strong electrostatic forces that act in all directions hold the ions together.

This also gives them the fixed state that makes it more difficult to break them up when compared to the covalent bonds.

So, the strong electrostatic forces cause the fixed state of ionic compounds.

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Photo attached, can anyone help??? I need help with question 28

Answers

Answer:

so what it's saying is that chlorine has two atoms because diatomic means consisting of two atoms.

Explanation:

can I please have brainliest? :)

If greenhouse gases in the atmosphere act like a blanket around the Earth, how is this "blanket" being changed by human activities?

Answers

The gases we create are adding to that blanket making sun light harder to escape,so the world heats up due to this addition to the layer

Answer:

c on edg

Explanation:

i dont know for sure so sorry if i am wrong.

and have a good day <3

What causes a substance to be hydrophobic?

Answers

The hydrophobic effect is caused by nonpolar molecules clumping together. Large macromolecules can have hydrophobic sections, which will fold the molecule so they can be close to each other, away from water. Many amino acids in proteins are hydrophobic, helping the proteins obtain their complicated shapes. The hydrophobic effect extends to organisms, as many hydrophobic molecules on the surface of an organisms help them regulate the amount of water and nutrients in their systems.

How many joules are required to melt 100 grams of water? The heat of
fusion of water is 6.01 kJ / mole.

Answers

Answer- 33.4 kJ


Explanation-

100 g H2O x (1mol/18g) = 5.5 mol

q=(5.5 mol)(6.01 KJ/mol)= 33.4 kJ

CH4 + 2O2 → CO2 + 2H2O How many products are produced by this reaction?
A.4
B.2
C.3
D.1

Answers

Answer:

i think its 2 but I'm not sure

How many molecules are in 502.1 g of NaF?

Answers

Answer:

11.958129200057586 molecules

Explanation:

SCIENCE ASSAP
Genetic Diversity
• The variation in genes that exists within a species
• Organisms with a large gene pool have a greater
chance of surviving and flourishing than a
population with limited genetic variability.
• Ex: resistance to disease, tolerance to cold
• Darwin termed this process "natural selection."
To the left you can see the variety of genes that exist
in types of fruit. Can you think of another species
that has similar variations?
Kesler Science, LLC

Answers

Answer:

Oranges

Explanation:

     Oranges have a lot of genetic diversity within them, since oranges were already well versed in growing in winter months, oranges have gentically modified themselves through natural selection into be able to prouduce in warmer climates. Oranges also have changes in genetics which gives them a lot of gentic diversity that effects their, size, taste, texture, acidity and ability to reproduce.

what is the substance that is formed when the acid react with bases in a neutralization reaction?​

Answers

Answer:

Water and Salt

Explanation:

A neutralization reaction occurs when an acid and a base react to produce water and a salt, and it entails the formation of water from the mixture of H+ and OH- ions.

Answer:

NaCl and water is formed when acid reacts with base

What will happen to a soccer ball that is rolling across a field if an unbalanced force of friction is acting on the soccer ball?

A. The soccer ball will gradually move slower and slower until it stops.
B. The soccer ball will continue to move at a constant speed.
C. The soccer ball will move at a constant speed for a while, then slow down and stop.
D. The soccer ball will slow down for a while and then move at a constant speed without stopping.

Answers

C. The soccer ball will move at a constant speed for a while then slow down and stop

Which component of the universe contains all of the other components listed below and would have the
greatest mass?

Answers

Answer:
The answer is galaxy

The galaxy is the component of the universe which  contains all of the other components and would have the greatest mass.

What is a galaxy?

A galaxy is a system of stars, stellar remnants, interstellar gas, dust, dark matter, bound together by gravity.The word is derived from the Greek galaxias , literally 'milky', a reference to the Milky Way galaxy that contains the Solar System. Galaxies, averaging an estimated 100 million stars, range in size from dwarfs with less than a hundred million stars, to the largest galaxies known – supergiants with one hundred trillion stars,each orbiting its galaxy's center of mass.

Most of the mass in a typical galaxy is in the form of dark matter, with only a few percent of that mass visible in the form of stars and nebulae. Supermassive black holes are a common feature at the centres of galaxies.

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Which of the following should
have the LOWEST dissolved
oxygen?
A. A lake with a waterfall
B. a swiftly-moving stream
C. a beach with heavy wave action
D. a small, calm pond

Answers

Answer:

warm water holds the least amount of dissolved oxygen, so I would assume the answer would be D. a small pond could heat up easily. in addition, the water is calm and not moving in a pond

What factors are different in diagrams A and B?​

Answers

Answer:

Acceleration Of B IS greater

Explanation:

F= mass x accelerarion

Acceleration of ( A) =20÷5 =4

Acceleration of (B) =5

When an object is acted on by unbalanced forces, the object will -

Answers

Answer:

hope it helps and thank you for the points

How many moles are 7.6 x 1024 atoms of Helium?

Answers

Answer:

3.88

Explanation:

Which of the following have London dispersion forces?
a. methane
b. carbon tetrachloride
c. bromine trifluoride
d. all of the above

Answers

It’s think it’s A I’m sorry if I’m wrong

balance the equation below SO2+O2>SO3​

Answers

Explanation:

The balanced equation is 2SO2+O2→2SO3

how many periods are there in the modern periodic table of elements?​

Answers

Answer:

There are seven periods in the modern periodic table.

Answer:

Seven periods

Explanation:

There are seven periods in the periodic table, with each one beginning at the far left. A new period begins when a new principal energy level begins filling with electrons. Period 1 has only two elements (hydrogen and helium), while periods 2 and 3 have 8 elements.

Help please!!!!!!!!!!!!!!!!!!!!!!!!

Answers

The answer is n2+3h2=2nh3

List two of the kingdoms found in the Eukarya domain

Answers

Animalia and Plantae

Hope that helps


#4 6th grade science

Answers

Answer:

Taxonomy

Explanation: Taxonomy formally names and classifies organisms by thier structure, function, and relationships

is Radon an elementary substance or a compound?

Answers

Answer:elementary substance

Explanation:

Calculate the Keq of the reaction CH4 + O2 ⇌ CO2 + 2H2O, given the following concentrations at equilibrium:
[CH4] = 0.37M [O2] = 0.25M [CO2] = 0.86M [H2O] = 0.44M

Answers

Answer is B but don’t take my word

A gas mixture contains oxygen, nitrogen, and carbon dioxide. It has a pressure of 250 mmHg. If the pressure of oxygen is 50 mmHg and the pressure of nitrogen is 175 mmHg then what is the pressure for carbon dioxide?

Answers

Answer:

[tex]P_{CO_2}=25mmHg[/tex]

Explanation:

Hello there!

In this case, according to the Dalton's law, which explains that the total pressure of a gaseous system equals the sum of the partial pressures of the gases composing, for the gaseous mixture composed by oxygen, nitrogen and carbon dioxide it would be possible to write:

[tex]P_{tot}=P_{N_2}+P_{O_2}+P_{CO_2}[/tex]

Now, given the pressure of the system and those of oxygen and nitrogen, we calculate that of carbon dioxide as shown below:

[tex]P_{CO_2}=P_{tot}-P_{N_2}-P_{O_2}\\\\P_{CO_2}=250mmHg-50mmHg-175mmHg\\\\P_{CO_2}=25mmHg[/tex]

Best regards!

The ______ of the particles themselves is much less than the space in between those particles

Answers

plz write question properly. Its not understandable.

How do we determine the number of electrons in a neutral atom?

Answers

this is the answer of your question .

Hope it helped you

Question 1
10 pts
In the reaction C3Hg + 502 — 3CO2 + 4H20, what is the ratio of moles of oxygen used to moles of H2O
produced?
O 5:3
04:5
0 3:5
O 5:4

Answers

Answer:

5:4

Explanation:

The equation given is balanced. There are 5 O2's on the left (reactant side) and then 4 H2O's on the right (product side). Thus, it's a 5:4 ratio.

Material
Mass
Tfinal
AT
Tinitial
min
(g)
O min
Water
200
Water
100

Answers

What are you trying to ask

Are viruses alive. What makes something alive?



Statement: No cell membrane or other organelles.

Statement: Most viruses do not have the fools to copy their own DNA

Statement: Outside of a host cell viruses do not use energy.

Statement: viruses don't appear to have active processes that respond to the environment

what​

Answers

The correct answer is the last question

A solution's hydrogen ion concentration is 1 x 10-5M.
What is the pH?

Answers

Answer:

pH=5

Explanation:

-log(1 x 10-5)=5

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