Chemistry High School

Which has the longest wavelength?
Which has the highest frequency?

Answers

Answer 1

Answer:

Which has the longest wavelength?

✔ microwaves

x infrared

x visible

x X-rays

Which has the highest frequency?

✔ X-rays

x infrared

x microwaves

x visible

Explanation:

I apologize if this was a late answer or if this doesn't answer your original question, but hope this helps! :)

Which Has The Longest Wavelength?Which Has The Highest Frequency?
Answer 2

Answer:

Microwaves then X rays

Explanation:

Related Questions

Which option is an element?

a. oxygen

b. sodium chloride

c. air

d. water

Answers

Answer:

Explanation:

water

Answer:

oxygen

Explanation:

BE FIRST TO ANSWER FOR SUM GOOD!!!!!:D

Answers

Answer is B can you like btw??

True or False?
Solubility and melting point are two examples of physical properties.

Answers

Answer: True

Explanation:

Solubility is a physical property. The reason is because it can be determined by simple observation and does not change the chemical composition of the material. If the material is soluble, the solubility is the maximum amount of material that dissolves in a solvent at a given temperature.

A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.

Answer: True

Explanation: These are both examples of physical properties

Find the mass of an object that has a density of 1.5g/cm^3 and has a volume of 8cm^3 power

Answers

Answer:

The answer is 12 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

volume = 8 cm³

density = 1.5 g/cm³

We have

mass = 8 × 1.5

We have the final answer as

12 g

Hope this helps you

2. Which atom is larger, Na or Al? Explain why.

Answers

Answer:

Na

Explanation:

Because it has the highest protons and electrons(Atomic mass)

please anyone help me with this ​

Answers

Answer:

matter is anything that takes up space while elements are subtanxes that can  be broken down

Which action would cause the chair to move to the left?
A. Applying 100 N of force to the chair from the left
B. Applying 100 N of force to the chair from the right
C. Applying 200 N of force to the chair from the right
D. Applying 200 N of force to the chair from the left
SUBMIT
PREVIOUS

Answers

the answer should be c
i’m not for sure but i hope this helps!
In order to overcome static friction, a force greater than 175 N would have to be applied to the chair, leaving only C and D as possible options. Since you want to move the chair to the left, you’d have to push from the right so the answer is
C) applying 200 N of force to the chair from the right

what are Atoms?
what do they do?

Answers

Answer:

atoms are small particles that make up everything even living things and non living things

Explanation:

The relative formula mass (M) of a Group 2 metal carbonate is 197
Relative atomic masses (Ar): C = 12
O = 16
Calculate the relative atomic mass (Ar) of the Group 2 metal in the metal carbonate
Name the Group 2 metal.​

Answers

The relative atomic mass (Ar) : 137 and the element : Ba

Further explanation

The naming of chemical compounds is giving a special name to a compound that aims to facilitate the classification of compounds and facilitate the identification of a compound. The rules for naming chemical compounds have been determined by the IUPAC (International Union of Pure and Applied Chemistry)

This nomenclature includes the naming of ion compounds, covalent compounds, and polyatomic

The molar mass of a compound is given by the sum of the relative atomic mass of Ar  

M AxBy = (x.Ar A + y. Ar B)  

Group 2 metals have a +2 charge : M²⁺

So the compound of metal carbonate : MCO₃

Ar C = 12, O = 16

M MCO₃ = (1.Ar M + 1. Ar C+ 3. Ar O)  

[tex]\tt 197=1. Ar~M+1.12+3.16\\\\197=Ar~M+12+48\\\\Ar~M=137[/tex]

The element with relative atomic masses 137 is Ba

So the compound : BaCO₃

What subatomic particle identifies any type of
atom?

Answers

Answer:

hope it helps..

Explanation:

Number of protons

More information: The atomic number is used to identify an element, and the atomic number is the number of protons in the nuclei of an element. Every element has its own unique number of protons, and therefore, atomic number.

A 10-kg ball is accelerated 500 m / s2 by a force of

Answers

Answer:

The answer is 5000 N

Explanation:

The force acting on a body can be found by using the formula

force = mass × acceleration

From the question

mass = 10 kg

acceleration = 500 m/s²

We have

force = 10 × 500

We have the final answer as

5000 N

Hope this helps you

How does an increase in the annual melt season in Antarctica have a global effect?
a.
It causes an increase in heat related illness and death.
b.
It causes the global concentration of carbon dioxide to decrease.
c.
The water in the melting glaciers can cause sea levels to rise.
d.
None of the above is true.


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

The correct answer is option "C"

The water in the melting glaciers can cause sea levels to rise.

The increase in annual melt season indicates a prolonged melting (hot)  season which is primarily due to the impact of global warming. Global warming is increasing the highest temperature mark in the hot seasons on the planet which is adversely affecting the polar regions of earth. The ice in these Polar Regions has started melting. This ice when converted into liquid form flows through regions to reach sea and oceans and thus causes the rising of sea level

The annual melt season in Antarctica produces a global effect because the water in the melting glaciers can cause sea levels to rise.

What is the annual melt season?

The annual melt season refers to a period of time when the ice in cold and polar regions of the world begin to melt to form warm.

The melting of ice in these regions such as Antarctica results in a rise in the global sea levels.

Therefore, the annual melt season in Antarctica produces a global effect because the water in the melting glaciers can cause sea levels to rise.

Learn more melt season at: https://brainly.com/question/1476419

#SPJ2

The atomic mass of an atom is calculated by adding up what two subatomic particles

Answers

The atomic mass of an atom is calculated by adding up protons and neutrons

Further explanation

There are two components that accompany an element, the mass number and atomic number

Atoms are composed of 3 types of basic particles (subatomic particles): protons, electrons, and neutrons

The charge of 1 proton is equal to a charge of 1 electron but has a different sign

The proton is positively charged (+1), the electron is negatively charged (-1). and neutrons not charged (neutral)

The Atomic Number (Z) indicates the number of protons and electrons in an atom of an element.

Atomic number = number of protons = number of electrons ⇒ neutral number

Atomic mass is the sum of protons and neutrons

Atomic Number (Z) = Atomic mass (A) - Number of Neutrons

QUESTION 2: How is velocity different from speed? *
1 point
Velocity is when an object goes in reverse
Velocity is the direction an object moves in, and it has nothing to do with speed
Velocity is speed and direction together

Answers

Answer:

Speed is the rate at which an object covers distance.

Velocity is the speed of something in a given direction.

what's the difference between series and parallel circuit in table form?​

Answers

Hey :)

In a parallel circuit, a different amount of current flows through each parallel branch of the circuit.

In the series circuit, different voltage exists across each component in the circuit.

Whereas in the parallel circuit, the same voltage exists across the multiple components in the circuit.


Hope this helps :)
When there are two or more electrical devices in a circuit with an energy source, there are a couple of basic ways by which we connect them. They can either be connected in series or parallel. A series circuit is a circuit in which two components share a common node and the same current flows through them. However, in a parallel circuit, components share two common nodes. In this article, let us look at more differences between series and parallel circuit.

If Maria winks exactly 5 times every minute while she is awake and she sleeps exactly 8 hours a day, how many times does Maria wink in a day? winks/day.​

Answers

Answer:4,800

Explanation:

5 winks a minute, 60 minutes in an hour.

300 winks an hour, 16 hours a day.

4,800.

Answer:

The answer is 4,800 winks per day.

Explanation: There are 24 hours in a day, 24 minus the 8 hours shes asleep is 16. There are 60 minutes in an hour. 5 x 60 is 300. 300 winks an hour multiplied by the 16 hours she's awake is 4,800.

.) If a solution had a pH level of 13.2, it would be considered a:
O A. strong base
O B. weak base
O C. strong acid
O D. weak acid

Answers

A pH level of 13.2 would be a very strong base!
A is the correct answer.

Remember, the high pH numbers are bases and the low ones are acidic.

PLEASE HELP!!!!

The student is chemically combining 4 g of hydrogen with 2 g of
oxygen. The reactants have a coefficient of 2 in them. What will be the
mass of the product?
A. 12 grams
B. 10 grams
C. 8 grams
D. 6 grams

Answers

Answer: Buy ram 3500 Laramie Longhorn

Explanation:

Answer:

12

Explanation:

If an unknown sample contains 39.04% sulfuric acid by mass, then a 0.9368 g of that sample would require _____ mL of 0.2389 M NaOH for neutralization.
A) 31.22
B) 39.98
C) 7.80
D) 79.96
E) 15.61

Please give an answer and an explanation, thanks!

Answers

Answer:

A) 31.22

Explanation:

The reaction of sulfuric acid with NaOH is:

H₂SO₄ + 2 NaOH → Na₂SO₄ + 2H₂O

To solve this problem we need to determine the moles of acid that will react, and, using the chemical equation we can determine the moles of NaOH and the volume that a 0.2389M NaOH solution would require to neutralize it.

Moles H₂SO₄ (Molar mass: 98.08g/mol):

0.9368g * 39.04% = 0.3657g H₂SO₄ * (1mol / 98.08g) =

3.7289x10⁻³moles H₂SO₄

And moles of NaOH that you require to neutralize the acid are:

3.7289x10⁻³moles H₂SO₄ * (2 moles NaOH / 1 mole H₂SO₄) =

7.4578x10⁻³ moles NaOH

Using a 0.2389M NaOH solution:

7.4578x10⁻³ moles NaOH * (1L / 0.2389mol) = 0.03122L = 31.22mL

Right answer is:

A) 31.22

3-4 sentences if you give me 3-4 ill like if you give me 5 ill give 5 star if you give me 6 ill do all and branliest pls help. Why is the study of human movement important?

Answers

Human Movement is important because it most commonly used to insure optimal athletic ability. It can also be used to identify the cause of most common sports injuries and movement-related problems. The name for this type of study is called Kinesiology. This is a very necessary part of students understanding dance, sports, and physical well-being. Studying Kinesiology results in better physical performance, as well as many cardiovascular improvements. Kinesiology is used to answer many still unknown question about human movement.

HELP ASAP
Which of the following is NOT a factor in conduction?
A. Temperature difference
B. Fluid flow
C. Surface Contact
D. Cross sectional area

Answers

B:Fluid Flow because fluid flow is how convection heat is transfered

can anybody help me? ill mark brainliest!!! please ITS TIMED

Answers

Density = Mass/Volume but it can also be rearranged to:

Mass = Volume x Density

Given in the question:

Volume - 44.9 cc

Density - 19.3 g/cc

Calculation

Mass = Volume x Density

= 44.9 x 19.3

= 866.57 g

After a particularly fierce blow, he crawled to his feet, too dazed to rush. . . . All the pain he had endured was as nothing compared with the exquisite agony of this. With a roar that was almost lionlike in its ferocity, he again hurled himself at the man. But the man, shifting the club from right to left, coolly caught him by the under jaw, at the same time wrenching downward and backward. Buck described a complete circle in the air, and half of another, then crashed to the ground on his head and chest.

What is the man’s role in this excerpt?

The man is the protagonist because he is the main character.
The man is the protagonist because he proves his superior strength.
The man is the antagonist because he reveals his cruel nature.
The man is the antagonist because he is opposing Buck.

Answers

Answer:

D. The man is the antagonist because he is opposing Buck.

Explanation:

I just took the quiz.

The most important ELEMENT found in all living things is


A. Oxygen

B. hydrogen

C. Nitrogen

D. Carbon

Answers

Answer:

A. Carbon hope this helps

Answer:

D. Carbon. I guess that's the answer

Which energy transformations occur when a candle burns?
Thermal energy transforms into mechanical energy and radiant energy.
Chemical energy transforms into thermal energy and electrical energy.
Thermal energy transforms into radiant energy and chemical energy
Chemical energy transforms into thermal energy and radiant energy.

Answers

Answer:

D - Chemical energy transforms into thermal energy and radiant energy

Explanation:

Correct on edge 2020

Answer:

(D)

Explanation:

Chemical energy transforms into thermal energy and radiant energy.

hello~i will really appreciate it if you answer all this♡

☆
1.How many valence electrons do noble gases like Ne,Ar and Kr have?

a.1.
b.2
c.6
d.7

2.The following describe ionic bonding,EXCEPT____.

a.It involves the transfer of electrons.

b.It involves sharing of electrons.

c.atoms either gain or lose electrons.

d.It is a bond between a metal and a non-metal.

3.Which of the following pairs of atoms is most likely to form a covalent compound?

a.C,O
b.Na,O
c.Mg,Br
d.Ba,CI

4.Which of the following is a metal?

a.O
b.S
c.K
d.C

5.Which is not a type of a chemical bonding?

a. Polar bonding
b.Metallic bonding
c.ionic bonding
d.covalent

||. A. Use Lewis structures to show . the transfer of electrons in the given combinations.

1.K +Br
2.Ba + I
3.Be + O
4.Na + S
5.AI + F

B.What ionic charge will the following elements have?PLEASE JUSTIFY YOUR ANSWER.

1. Group 2A
2. Group 5A
3.Group 6A

C.Predict whether the bonding in the oxides of the following elements is covalent or ionic.EXPLAIN YOUR ANSWER.

1.Aluminum
2.Magnesium
3.Phosphorus
4.silicon
5.sodium

|||. Write the electron configuration of the following elements.

1. Ti
2. V
3. Se
4. Ag
5. Zr

thank you!
to your hardwork★

​

Answers

Explanation:

1)Noble gases have stable valence electron of 2 and 8.

2)B- ionic compounds do not require sharing of electron.

3)B- sodium and oxygen will likely form a covalent compound.

4) C- potassium

5) A- polar bonding

6)

What are the two main types of cells, and how do we classify them?

Answers

Answer:

eukaryotic, which contain a nucleus, and prokaryotic, which do not. Prokaryotes are single-celled organisms, while eukaryotes can be either single-celled or multicellular.

Explanation:

Answer:

Eukaryotic and prokaryotic

Explanation:

Eukaryotic cells contain a nucleus and prokaryotic cells do not

what is the mass of 4.900 x 10^25 atoms of He

Answers

mass?atoms=4.900x10,25,of helium               mass=atoms x molarmass divided by NA [6.022x1023] we will get or answer                                                                  

please help!! my grades dying
15 points

Answers

Answers-in-bold:

There are two common temperature scales. On the Fahrenheit scale, water freezes at 32 degrees. The Celsius scale divides the interval between the freezing and boiling points of water into 100 degrees.

Can anyone explain to me how I solve 3x10^8 / 3.82x10^-7
I know the answer due to referring to the key but I'm not sure how they got it. Answer was 7.85x10^14

Answers

Answer:

You have to do this on a calculator. So when you put it in the calculator you will get 7.85x10^14.

3x10^8 is the speed of light. 3.82x10^-7 is the number in the question.

You can solve it like this

3x10^8

------------------        

3.82x10^7                  

But you would do this on a calculator.

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