Will give brainliest

Will Give Brainliest

Answers

Answer 1

Answer:

12.5

1.95x10^-10

1.5

0.5

in that order

Explanation:


Related Questions

which of the following best explains why the strings of a harp make sounds when it is played?

Answers

Each time the soundboard rises it is pushing air, creating pressure waves. The air right around the harp is pushing on the air that is a bit further away

Is this a redox reaction? give evidence (many points plz answer)
2Mg + CO2 → 2MgO + C

Answers

Answer:

[tex] \boxed{yeah}[/tex]

Explanation:

[tex]CO_2 \: is \: reduced \: to→C \: by \: 2M_g \: (the \: reducing \: agent): while \\ 2M_g \: is \: oxydized \: to→2M_gO \: by \: CO_2 \: (the \: oxydizing \: agent)[/tex]

Charles Darwin's theory of evolution describes how species evolve due to natural selection. Which of these is NOT evidence of natural selection? A. Carmels have long, bushy eyelashes. B. Mint plant varieties are crossed to express desirable traits. C. The snowshoe here is white in winter and brown in summer. D. Galapagos finches have stronger breaks after years of drought. ​

Answers

Answer:

b

Explanation:

mint plant varieties are crossed to express desirable traits

xam
What do we
call the type of
reflection in
the upper
image?
A. Diffuse reflection
B. Rough reflection
C. Specular reflection
D. Obtuse reflection

Answers

Answer:

Specular reflection is correct answer by my views

hope it helps you

Which has a larger impact on change in atomic size: moving down one period or moving across a family

Answers

Answer:

hi this my first day, also the answer is moving one period :)

What is the temperature in kelvin of a gas if it is allowed to expand from 1.50 L to 4.50 L? The initial temperature is 10.0°C and pressure is constant throughout the change.
Which equation should you use?

StartFraction V subscript 1 over T subscript 1 EndFraction equals StartFraction V subscript 2 over T subscript 2 EndFraction.

T subscript 2 equals StartFraction V subscript 1 over V subscript 2 EndFraction T subscript 1.

T subscript 2 equals StartFraction V subscript 2 over V subscript 1 EndFraction T subscript 1.

Answers

Answer:

first question is the third option and the second question is 849K.

Explanation:

Answer:

third option

849K

Explanation:

Please help me fast... ​

Answers

B) 1 and 3

it's the right answer

Answer:

For 3rd question, the answer is option D

R4te me for 10 points and be honest with me PLEASE

Answers

Answer:

id give you and 8 or 9 but you are really pretty tho

Explanation:

i give you an 7 i am being honest i was gonna give you a 6 but then your hair is pretty

Can someone please help me​

Answers

Answer:

1) 1-buten (longest carbon chain has 4 C, -en means double bond)

2) 2-penten

3) 3-methyl-2-penten

4) 3-methyl-2-buten

5) 1,1-dichlorpropen

6) 2-penten

B. Directions: Identify what stage of human
development is being described. Choose
from the list of words inside the box.
ADULTHOOD
INFANCY
BIRTH
1. A child learns to walk, talk
and begin to be more self-sufficient at
this stage
2. A child is completely
dependent on the care of his parents in this
stage.
3. It is the stage that the boys
begin to experience changes in their
voice.
4. Boys and girls gain more
independence from their parents during
this stage.
5. Girls at this stage begin to
menstruate ad are now capable of
giving birth.​

Answers

Answer:

Adulthood = 3 and 5

Infancy = 1 and 4

Birth = 2

Explanation:

describe a second degree burn ​

Answers

Answer:

Second-degree burns, or partial thickness burns, are more severe than first-degree burns. They affect the outer layer of skin, called the epidermis, and part of the second layer of skin, called the dermis. Second-degree burns can be very painful and often take several weeks to heal.

Explanation:

Is this a balanced equation?​

Answers

Answer:

The equation is not balanced.

Explanation:

The Law of Conservation of Matter is also called the law of conservation of mass or the Lomonosov-Lavoisier Law. This law postulates that "the mass is neither created nor destroyed, it only transforms." This means that the reactants interact with each other and form new products with different physical and chemical properties than the reactants because the atoms of the substances are arranged differently. But the amount of matter or mass before and after a transformation (chemical reaction) is always the same, that is, the amounts of the masses involved in a given reaction must be constant at all times, not changing in their proportions when the reaction ends. . In other words, then the mass before the chemical reaction equals the mass after the reaction. The exception to the rule is nuclear reactions, in which it is possible to convert mass into energy and vice versa.

This is, te law of conservation of matter states that since no atom can be created or destroyed in a chemical reaction, the number of atoms that are present in the reagents has to be equal to the number of atoms present in the products.

Then, you must balance the chemical equation. For that, you must first look at the subscripts next to each atom to find the number of atoms in the equation. If the same atom appears in more than one molecule, you must add its amounts.  

The coefficients located in front of each molecule indicate the amount of each molecule for the reaction. This coefficient can be modified to balance the equation, just as you should never alter the subscripts.

By multiplying the coefficient mentioned by the subscript, you get the amount of each element present in the reaction.

Then, taking into account all of the above, you can determine the amount of elements on each side of the equation:

Left side: 2 hydrogen H and 2 oxygen O  

Right side: 2 hydrogen H and 3 oxygen O

Since the quantity of each element is different on each side of the reaction, the equation is not balanced.

The balanced equation is:

2 H₂O₂ → 2 H₂O + O₂  

Which of the following statements BEST explains the data in the table?
А
The acceleration determines the total distance traveled,
B
The acceleration determines the change in velocity
С
There is a constant acceleration when an object is moving,
D
The greater the velocity is of an object the greater the acceleration of the object)

Answers

Answer: b

Explanation:

10. Which is true of unicellular organisms?
A. They lack cells.
B. They all are eukaryotes.
C. They lack cell differentiation.

Answers

Answer:

a

Explanation:

Answer:

The answer is

B. They all are eukaryotes.

Hope it will help :)

Question 1 (1 point)
If PV = nRT, then if I increase the amount of moles of a gas in a glass jar,
and the temperature of the gas stays the same,
and volume of a jar obviously stays the same,
what will happen to pressure inside the jar?

Answers

Answer:

The pressure also increases.

Explanation:

As we can see in this equation,

Pressure is directly proportional to the moles of a gas in the glass jar.

Temperature and Volume remains constant.

Hence, if number of moles of a gas increases, the pressure also increase "n" number of times.

The amount of space that a gas takes up is its
a.
volume.
b.
mass.
c.
pressure.
d.
density.

Answers

Answer:

A. volume............

Answer:

Volume is correct

Explanation:

give the other person brainliest :>

What force(s)
might cause a car
to slow down?
Friction
Applying the brakes
Wind
All of the above

Answers

Friction, applying the brakes, and wind

Which statement describes asexual reproduction but not sexual
reproduction?
A. Offspring are genetically identical to the parent.
B. The process involves cell division by meiosis.
c. Offspring are genetically different from one another.
D. The process involves two parents.
Plz i’ll give brainless plz pick correct

Answers

Answer:

A. Offspring are genetically identical to the parent.

That's the answer. I hope it helps!

The statement which describes asexual reproduction but not sexual

reproduction is A. Offspring are genetically identical to the parent.

What is Asexual Reproduction ?

Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.

The offspring that arise by asexual reproduction from either unicellular or multicellular organisms inherit the full set of genes of their single parent.

An Asexual reproduction means that the parent organism will simply split into two child organisms, and that there will be no mixing of the DNA, as it is the case in case of the sexual reproduction which mixes up the DNA.

Therefore the child and the parent organism will contain exactly the same genetic material - the correct answer is A.

learn more about reproduction here ;

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Copper (II) nitrate, Cu(NO3)2, solution reacts with potassium hydroxide, KOH, to form a blue
precipitate of copper (IT) hydroxide.
Write the balanced chemical equation:
Write the overall ionic equation:
Identify the spectator ions:
Write the net ionic equation:

Answers

Answer:

Copper(II) nitrate and potassium hydroxide are soluble ionic compounds, which implies that they dissociate completely when dissolved in water to produce ions. ... You can thus say that the balanced chemical equation that describes this double ... Cu(NO3)2(aq)+2KOH(aq)→Cu(OH)2(s)⏐⏐↓+2KNO3(aq).

Which of these factors is involved in earthquake formation?

A. plates getting larger
B. rocks breaking
C. stress that decreases
D. faults that remain stationary

Answers

I’m pretty sure it’s B) rocks breaking but i’m not 100% sure

Answer:

B

Explanation:

Edge 2023

2. A pharmaceutical chemist runs a chromatography test on a substance
and identifies two of its components by comparing their Ry values
against certain standards. If the two components have Rf values of 1.0
and 0.41, and the solvent front has travelled 12.0 cm from the sample's
origin, what is the separation distance on the chromatogram?

Answers

Answer:

7.08 cm

Explanation:

For number 1;

Rf = d1/d2

d1/12 cm

Rf = 1.0

d1 = 12 * 1

d1 = 12.0 cm

For number 2

Rf = d1/d2

Rf = 0.41

0.41= d1/12

d1 = 0.41 * 12

d1 = 4.92 cm

Separation distance= 12.0 - 4.92 = 7.08 cm

can someone please explain to me the difference between oxidation and reduction? Please I need help.​

Answers

Answer:

Oxidation occurs when a reactant loses electrons during the reaction. Reduction occurs when a reactant gains electrons during the reaction.

I need help in this questions

Answers

Answer:

just use calculator mannn

The correct answer is H

do you guys know what these are? im stuck

Answers

Answer:

See explanation

Explanation:

1) From the reaction equation;

2 moles of KClO3 yields 2 moles of KCl

Hence,

4 moles of KClO3 yields 4 * 2/2 = 4 moles of KCl

2) Given that from the reaction equation, we have;

Burning 3 * 6.02 * 10^23 molecules of oxygen yields 2 * 22.4 L of CO2

Hence,

7 * 10^25 molecules of oxygen yields 7 * 10^25 * 2 * 22.4 / 3 * 6.02 * 10^23

= 313.6 * 10^25/18.06 * 10^23

= 17.36 * 10^2

= 1736 L

Which of the following pairs of elements will form covalent bonds with each other? PLEASE HELP

Answers

Answer: Your correct answer is A, because potassuim and bromine form covalent bonds with each other, Also check out nile red he made bromine in his dads garage!-Have a nice day :)

The pair of elements which will form covalent bonds with each other are Si (Silicon) and N (Nitrogen). Hence the correct option is (B).

What is Covalent Bond ?

A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms.

These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

Silicon and nitrogen forms strong covalent bond . This stable covalently bonded material does not readily sinter and cannot be heated over 1850⁰C as it dissociates into silicon and nitrogen.

Therefore, The pair of elements which will form covalent bonds with each other are Si (Silicon) and N (Nitrogen). Hence the correct option is (B).

Learn more about Covalent Bond here ;

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Substances that are good conductors of heat and electricity at room temperature usually
have delocalized electrons moving freely from atom to atom. Which type of bonding
occurs in these substances?
O covalent
electric
ionic
metallic
ASAP PLEASEE

Answers

Answer:

the answer is electric

Explanation:

i think so

Sodium bicarbonate is the chemical name for baking soda. Its chemical formula is NaHCO3. What does the subscript 3 mean?

Answers

Answer:

'3' in NaHCO₃ is the number of moles oxygen in 1 mole of sodium bicarbonate

Explanation:

see above note.

C.  

There Are Three Atoms Of Oxygen In Sodium Bicarbonate.

_______

I Got It Right On The Test, Hope It Helps :)

Why aren't acid-base reactions considered redox reactions, even though they involve the transfer of hydrogen atoms?

Answers

Answer:   Acid/base and precipitation reactions almost always are NOT redox reactions. For redox to have happened, the number of electrons that an element has must change (i.e. its oxidation state must change). ... But the hydrogen ion never "has" any electron throughout the process and remains in a +1 oxidation state.

Explanation:

let me know if that helped...(☞゚ヮ゚)☞

Acid-base reaction is not a redox reaction, since the oxidation number remains unchanged in acid-base reaction.  

What is acid-base reaction?

An acid-base reaction is the chemical reaction that occur when acids and bases react together.

What is redox reaction?

Redox reaction is a reaction that involves the transfer of electrons between the atoms, ions, or molecules.

Acid-base reactions involve the transfer of hydrogen ions between reactants. Redox reactions involve a change in oxidation number for one or more reactant elements.

Redox reactions involve a change in oxidation number for one or more reactant elements.

Acid-base reactions involve a transfer of a hydrogen ion instead of an electron and the transfer of an H+ ion leaves the oxidation numbers unaffected.

To learn more about acid-base and redox reaction here

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What happens when chlorine solution is added to a solution of sodium bromide?
A)No reaction
B)An explosion
C)Bromine is produced

Answers

Answer:

Sodium chloride is produced

Answer:

b

Explanation:

Put this equation into word form.

Answers

Answer:

2

Explanation:

symbol of postassium is k and there is no symbol k. so i guess no2

Other Questions
define human resources write a loop that will input 8 numbers from the keyboard and find the sum Brainiest +100 points if u get this correct first!Which level of government was responsible for the creation of the Cumberland Road? O State O Federal O Local O International What is V-E Day? O A. The day Italy surrendered to its Allies O B. The day Russia surrendered to its Allies O C. The day America surrendered to its Allies D. The day Germany surrendered to its Allies what is the relation of pressure of a liquid with its depth and density? Kevin cuts a foam block along the red line. When he looks at the newly exposed face, what is the shape of the cross section? If you got lost in an unfamiliar part of the city, which of these signs would best describe your situation? I give crown!!!! NO random answers :--))) The American System car BEST described as a ____ planO Economic O Military O Political O Social Can anyone please help me with the problem. Which is NOT a role of the respiratory system(select all that apply) a. Taking in oxygen from the external environment b. Moving air into the trachea and down the bronchi c. Removing carbon dioxide from the alveoli d. Transporting glucose to the cells 15 POINTS AND BRAINLIESTWhich data set could be graphed as a set of points connected by a straight line?A) a book to student ratio of 10 to 1B) a 1 to 7.50 ratio of CDs to dollarsC) a time to distance ratio of 1 to 5D) a 3 to 1 ratio of cups to straws write a letter to your friend telling him about how you celebrate your festival in your hometown in French How would you say "He has brown hair." in Spanish divide $200 in the ration2:3.what is the results the angle of elevation from the bottom of the lift to the top of Snowbowl mountain is 33 degrees. If the height of the mountain is 544 meters, what is the length of a list from the bottom of a mountain to the top? Quartz,SiO2,contains 46.7% silicon. What mass of silicon is present in 381 g of quartz? The mean of a set of numbers is found by adding the values and dividing by the number of values. What is the mean of this set of gymnastic scores?7.4, 7.1, 3.3, 9.1, 8.2 Which is the product of 15 and5?12A.5512B. 661O17.12Oo D. 78 7 1/15 - 3 4/5 Answers: A. 3 4/15B. 4 11/15C. 4 3/10D. 3 1/15