Answer:
electromagnetic waves
Explanation:
The waves that do not need a medium to travel through are known as electromagnetic waves.
What are electromagnetic waves?These waves do not need any medium for their propagation or traveling. The waves have different wavelength and energy factors depending upon their rate of propagation. EMR waves travel from the sun to the earth in space.
Examples of electromagnetic waves are Xrays, gamma rays, radio waves, and more.
Find more information about electromagnetic waves here:
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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:
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
Answer:
i guess the answer is..true
the ozone in troposphere protects the earth from ultra violet waves that may cause global warming
Research the validity of ONE of the following hypnosis claims using reputable sources. (No blogs, social media posts, etc.)
1.Hypnosis can help people stop smoking.
2. Hypnosis can help people with weight loss.
A. To what extent does hypnosis work in regards to these behaviors?
B. Would you recommend them? Why or why not?
C. What sources did you use to find your answers.
Answer:
1. Hypnosis can help people stop smoking.(Yes)
To what extent does hypnosis work in regards to these behaviors?
A study by McNeilly and colleagues found that hypnosis may help quitters to focus on their own resources to curb cigarette cravings. Other researchers have suggested that success rates are caused by the relaxation effects of hypnosis. These might allow people to cope with nicotine addiction and nicotine withdrawal.
Would you recommend them? Why or why not?
I wouldn't recommend it because, The evidence for hypnosis as a successful smoking cessation method is a mixed bag. Some studies have seen high success rates, whilst others are more modest. A review of 59 different trials found that hypnosis is often better than no support at all.( so its a risk)
Explanation:
Someone pls help me I will make you brain
the variable part of an amino acid is the __________.
answer: the variable part of an amino acid is the: SIDE CHAIN
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
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.
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#SPJ2
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Answer:
transmission clutches
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.
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.
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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:
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.
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
Four students each measured the mass of 1.43g sample four times
Answer:
look up 4 divided by 1.43
Which of the following is a physical change?
Dissolving salt in water
Digesting food
Burning wood
Oxidation
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!
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?
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.
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
Someone pls help me I will make you brain
Answer:
c
Explanation:
II and III
Why is boiling water considered a physical change
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.
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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
Can someone find from which website this test is?
Answer:
Try quizlet, they have everything on there
Explanation:
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
Someone pls help me I will make you brain
Answer:
As shown in the attachment,
Explanation:
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
How long will it take a traveling 350m/s to go a distance of 1400m?
Answer:
6 hours
Explanation:
pls brailiest