Not all chemical reactions are spectacular. They do not always involve substances that you think of as chemicals like the ones in the lab or in acid rain. ... When molecules of sulfenic acid get to your eyes, they can react with the water in your eyes to produce a new substance, a form of sulfuric acid.
the variable part of an amino acid is the __________.
answer: the variable part of an amino acid is the: SIDE CHAIN
the fact that matter is not created or destroyed in any chemical or physical change is called the
Answer:
Law of Conservation of Mass.
Is that Right?
Can someone please help me write a little 2 sentence answer to this for me, it would be so helpful and the first person to answer it will most definitely be marked brainlist.
Answer:
I think that it would be better to have smaller cells because smaller cells takes less energy to transport waste and generally more efficient to control than larger cells. It is better to have smaller cells because larger and fewer cells takes up more nutrients, but doesn't cover as many surface area. In the end, smaller cells are more efficient, cover more surface area, and moves faster than bigger cells.
Explanation:
I hope that this is the kind of answer you were looking for!
Pls help i'll mark you the brainlest What force is needed to make ball fall on Earth if it has a mass of 13kg
Answer:
gravity.
Explanation:
How many carbon atoms are represented by the model below?
A. 3
B. 2
C. 1
D. 4
Someone pls help me I will make you brain
Answer:
i guess the answer is..true
the ozone in troposphere protects the earth from ultra violet waves that may cause global warming
Use your knowledge of valence electrons and how they affect bonds to figure out how carbon (Group 14) and oxygen (Group 16)
would be attached to one another. In carbon dioxide (CO2), how is the compound structured? (Use "-" to represent a single
bond and "=" to represent a double bond) (1 point)
C-O-O
O=C-O
C=O-O
O=C=O
Answer: D
Explanation:
O=C=O
Carbon is in group 14 having four valence electrons and oxygen is in group 16 having six valence electrons hence the correct structure of CO2 is O=C=O.
Carbon and oxygen are nonmetals. Nonmetals form compounds by sharing electrons in a covalent bond.Carbon, a group 14 element has four valence electrons while oxygen, a group 16 element has six valence electrons.
Carbon can share four valence electrons with two oxygen atoms in CO2 to form the structure O=C=O. In this way, all the atoms now obey the octet rule.
Learn more: https://brainly.com/question/865531
Someone pls help me I will make you brain
How long will it take a traveling 350m/s to go a distance of 1400m?
Answer:
6 hours
Explanation:
pls brailiest
what is the density of an object with a height of 1 and a mass of 36
you will divide 36 by 1 and multiply 2 on both sides which makes 72 by 2 so 2into 1 is 2 and 2 into 36 is 72
Why is boiling water considered a physical change
Four students each measured the mass of 1.43g sample four times
Answer:
look up 4 divided by 1.43
Someone pls help me I will make you brain
Answer:
c
Explanation:
II and III
Someone pls help me I will make you brain
Answer:
As shown in the attachment,
Explanation:
What is an electrolytic cell?
A. A cell with a negative cell voltage
OB. A cell with a spontaneous redox reaction
C. A cell with a positive cell voltage
D. A cell that has a salt-bridge connection
Answer:
A. A cell with a negative cell voltage
Explanation:
other answer is wrong
An electrolytic cell is a cell with a spontaneous redox reaction (option B).
What is an electrolytic cell?Electrolytic cell is an electrochemical cell that utilizes an external source of electrical energy to force a chemical reaction that would otherwise not occur.
An electrolytic cell converts electrical energy into chemical energy. The redox reaction in the cell occurs spontaneously and is responsible for the production of electrical energy.
Therefore, according to this question, option B is correct.
Learn more about electrolytic cell at: https://brainly.com/question/34404030
#SPJ2
3. How many moles of silver is 8.46x1024 atoms of
silver?
Answer:
14.05 molesExplanation:
To find the number of moles in a substance given it's number of entities we use the formula
[tex]n = \frac{N}{L} \\[/tex]
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
[tex]n = \frac{8.46 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 14.053156[/tex]
We have the final answer as
14.05 molesHope this helps you
Why is alchemy no longer accepted?
A. Alchemists were not able to turn other metals into gold.
B. Scientists used evidence, analysis, and experiments to disprove
alchemy.
c. Alchemy became less popular once Aristotle died.
O D. The discovery of radioactivity took people's attention away from
alchemy
i think the answer is B. scientists used evidence, analysis, and experiments to disprove Alchemy. apologies if its incorrect.
is lithium a good or bad element? (explain why)
Answer:
Its good
Explanation:
It has power
Answer: The widespread occurrence of lithium in plants results in a wide, although low-level, distribution of lithium in animals. Lithium salts have complex effects when absorbed into the body. They are not highly toxic, although high levels can be fatal.
Explanation: Which means that lithium is a good element depending on levels.
Which of the following is a physical change?
Dissolving salt in water
Digesting food
Burning wood
Oxidation
Minerals have:
A. an exact chemical composition, such as SiO2.
B. a small range in chemical composition, such as (Mg, Fe)2SiO4
C. a large range in chemical composition, such as (Mg, Fe, Al, K, Na)2SiO4
D. no set chemical composition.
Answer:
B
Explanation:
i don't know minerals a good for the body
4. Balance the following equations (show work)
a.___H2(g) +___O2(g) →___H2O(1)
b.____Fe(s) +___O2(g)→___Fe2O3(s)
c.___Al(s) +___HCl(aq) →___AlCl3(aq) +___H2(g)
d.____CaCO3(s) +____HCl(aq) →____CaCl2(aq) +____CO2(g) +____H2O(1)
Answer:
a) 2H2+O2 = 2H²O
b) 4Fe+30²=2Fe²O³
c) 2Al+6HCl=2AlCl³+3H²
Please tell me the answer I will mark you brainliest
Answer:
Answer is the third one
Explanation:
All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures.
Someone pls help me I will make you brain
Answer:
transmission clutches
Can someone find from which website this test is?
Answer:
Try quizlet, they have everything on there
Explanation:
importance of solvay process
Answer:
It is in great demand by the glass industry, and it is important in the manufacture of textiles, soaps and detergents, numerous chemicals, paper, and iron and steel. It is also used as a water softener (household washing soda is a well-known form of sodium carbonate) and in the refining of petroleum.
The more massive star will always be closer to the center of gravity in a binary start. True or false?
Answer:
True
Explanation:
Hope it helped!
Someone pls help me I will make you brain
Answer:
c
Explanation:
Answer:
I don't know either
Explanation:
I am sorry i can not answer you
Someone pls help me I will make you brain
Match them plsss
Answer:
carbon monoxide - B
nitrogen oxides - D
particulate matter - A
sulfur oxides - C
Explanation:
not sure if i'm fully correct though
Answer:
Carbon monoxide is (B)
Nitrogen oxides is (D)
particulate matter is (A)
sulfur oxides is (C)
Explanation:
sorry if I did it wrong
how might you separate a mixture of water and salt?
Answer:
by evaporating the solution leaving the solute (salt) behind after the solvent has evaporated
A book is held against a wall by applying a force perpendicular to the surface of the book. In a free body diagram of all of the forces acting on the book, what force would keep the book from sliding down the wall? A. force of hand B. force of gravity C. friction force D. normal force
In a free body diagram of all of the forces acting on the book, the force which would keep the book from sliding down the wall is; Choice A: Force of hand.
In modern mechanics, it is noteworthy to know that the normal force, F(n) is the component of a contact force which is perpendicular to the surface that an object contacts.In this instance, the surface which the object contacts is the wall.
It has however been stated within the question that;
A book is held against a wall by applying a force perpendicular to the surface of the book.In conclusion, the force which keeps the book from sliding down the wall is the force of the hand which is perpendicular to the object's surface of contact.
Read more:
https://brainly.com/question/18775450
Answer:
FORCE OF HAND