Explain what a cold front is.

Answers

Answer 1

Answer:

A cold front is a boundary or zone that separates two air masses. The cooler more dense mass replaces the warmer.

hope this helps :)

Explanation:

Answer 2

Answer:

A cold front is a boundary or zone that separates two air masses. The cooler more dense mass replaces the warmer.

Explanation:

i am smart.....( i think )


Related Questions

pleaseee help.....ASAP
will mark branliest!!
and give extra points!

Answers

Answer:

C

Explanation:

All three can become negative versions: negative ions

Answer:

It is going to be D because Group 1 A and 2 A are s block elements which are METALS, also they are not halogens as the 7 A group is called halogens, Plus they give +1 oxidation state so Correct answer is D as they are group 1 A elements so they have only one valence electron in their valence shell

What is often added to the water used when reacting the group 1 metals with
water?
Universal indicator
An acid
An alkali
Oil
What is produced when sodium reacts with water?
Sodium oxide and water

Answers

Answer:

an acid.

sodium oxide and water

11) Identify the number of elements and the number of atoms present in the chemical formula. NaHCO ²
4; 6
5; 6
4,5
3; 5​

Answers

Answer:

4;6

Explanation:

because there are four elements

the answer will be .. A . 4;6

What mass of the calcium carbonate, to the nearest hundredth of a gram, is decomposed in this reaction.

Answers

Answer:

28.00 g is the answer

Answer:200

Explanation:

It’s is the answer

Help fast!
Determine the density of a liquid if it’s mass is 50.5 grams.

Answers

Answer:

do we have the volume ?

Explanation:

what are the 3 subatomic particles of the atom? What are their corresponding charges and locations within the atom?

Answers

Answer:

Protons, neutrons, and electrons are the three main subatomic particles found in an atom.

Explanation:

the negatively charged electrons can be found around the nucleus in an electron cloud.

What form of energy is stored once glucose is from
o A. light energy
O B. kinetic energy
O C. chemical energy
O D. mechanical energy

Answers

Answer:

The form of energychemical energy

Which of the following is a natural source of electricity?
A deep mines
B ligthening
C coal
D car batteries

Answers

Answer:

c

Explanation:

by burning it we get steam from.it electricity ..........

2 Examples of solid, liquid and gas

Answers

Answer:

Solid

1. Stone

2. Brick

Liquid

1. Water

2. Oil

Gas

1. Oxygen

2. Nitrogen

Answer:

rock and sand, water and steam, smoke and hydrogen

Explanation:

rock and sand are solids, water and steam are liquids, smoke and hydrogen are gases. trust me i know this

the sum of all the kinetic energies of an object is it's​

Answers

Answer:

The sum of potential energy and macroscopic kinetic energy is called mechanical energy and stays constant for a system when there are only conservative forces (no non-conservative forces). The more mass a moving object has, the more kinetic energy it will possess at the same speed.

Explanation:

Answer: Mechanical energy

Explanation: The more mass a moving object has, the more kinetic energy it will possess at the same speed

BRAINLIEST
What type of bond is Cu and F Ionic or Covalent? ​

Answers

An ionic bond because it is between a non-metal and a metal. I hope this helps!

Which of these elements has an electron configuration of [Kr]5s2?
barium

calcium

rubidium

strontium

Answers

Strontium has an electron configuration of [Kr]5s²

Further explanation  

In an atom there are levels of energy in the shell and sub shell  

This energy level is expressed in the form of electron configurations.  

Writing electron configurations starts from the lowest to the highest sub-shell energy level. There are 4 sub-shells in the shell of an atom, namely s, p, d and f. The maximum number of electrons for each sub shell is  

s: 2 electrons  

p: 6 electrons  

d: 10 electrons and  

f: 14 electrons  

From an electron configuration of [Kr]5s² can be concluded :

element is in period 5 (5 = shell)element is group 2(valence electron =2 and block s) has atomic number 38 (Kr = 36 + 2(valence elektron from 5s²)

If we look at the periodic system, the elements that meet the requirements in question are Strontium (Sr)

Answer:

D) strontium

what element has 3 valence electrons in the 3rd energy level

Answers

Answer:

Aluminum (Al)

Explanation:

It has 3 electron orbitals and has 3 valence electrons

Write 657000 in scientific notation.

Answers

Answer:

600000+50000+7000

Explanation:

What colors are the fireworks in the photo? How do you
think the matter and energy of fireworks of different colors are similar and
different?

Answers

Answer:

Shortly after, the electron will fall back down to a lower energy level, releasing energy in the form of light. Therein lies the key to colorful fireworks!

The matter and energy of fireworks simply rely on the flow of electrons from the ground stage to the excitatory stage.

What is Matter?

Matter may be defined as any sort of substance that is constructed of numerous types of particles that occupy physical space and possess inertia. In simple words, matter may be characterized as anything which occupies space and has mass.

When the electrons move from the ground stage to the excitatory stage, they require a significant amount of energy in any form. But when they fall back to the ground stage from the excitatory stage, they liberates energy.

The same principle is applied in the colorful observation of fireworks. The stored energy is released and different colors of fireworks become visible.

Therefore, the matter and energy of fireworks simply rely on the flow of electrons from the ground stage to the excitatory stage and vice-versa.

To learn more about Matter and energy, refer to the link:

https://brainly.com/question/23490755

#SPJ2

Bromine, a liquid at room temperature, has a boiling point of 58°C and a melting point of –7.2°C. Bromine can be classified as a
compound.
impure substance.
mixture.
pure substance.

Answers

Answer:

D. pure substance.

Explanation:

Answer:

:D

Explanation:


Convert the following to Kelvin
12) 0° C
13) -50° C
14) 90° C
15) -20° C

Answers

Answer:

12)273.15 kelvin

13)223.15 kelvin

14)363.15 kelvin

15)253.15 kelvin

Explanation:

thank u!!!

Answer:

12) 273.15

13) 223.15

14) 363.15

15) 253.15

Explanation:

Formula:

_C+273.15=_K

List harmful effects of global warming? PLZZ HELP WHOEVER IS FIRST ILL MARK BRAINLEIST

Answers

Answer:

first theres the poliution  one of the biggest things thats starts global warming then theres recycle and non recycle because people mix there trash up when their not suppossed to.

Explanation:


Which of the following is a chemical property of a sheet of paper?

A. The paper can be burned.
B. The paper can be crumbled.
C. The paper does not attract a magnet.
D. The paper does not conduct electricity.

Answers

Answer:

A

Explanation:

Flammability is a chemical property. The paper crumbling would be a physical property. The inability to attract a magnet or conduct electricity would be considered electrical properties

The distinctive odor of vinegar is due to acetic acid, HC₂H₃O₂, which reacts with sodium hydroxide. If a 3.45 mL sample of vinegar needs 42.5 mL of 0.115 M NaOH to be neutralized, how many grams of acetic acid are in a 1.00 L bottle of this vinegar?​

Answers

Answer:

Explanation:

CH₃COOH + NaOH = CH₃COONa + H₂O .

42.5 mL of .115 M of NaOH will contain .0425 x .115 moles of NaOH

= 48.875 x 10⁻⁴ moles NaOH

It will react with same number of moles of acetic acid

So number of moles of acetic acid in 3.45 mL = 48.875 x 10⁻⁴

number of moles of acetic acid in 1000 mL = 48.875 x 10⁻⁴ x 10³ / 3.45 moles

= 1.4167 moles

= 1.4167 x 60 gram

= 85 grams .

So 85 grams of acetic acid will be contained in one litre of acetic acid.

_________ change is a change in matter that results in a material changing from one state to another without any change in chemical properties. Example: solid ice changes to liquid water.​

Answers

Answer:

Physical change

Explanation:

A. How many molecules of sugar are in 20.5 g of sugar?

Answers

Answer:

By definition, one mole (one gram molecular weight) of any substance, contains Avogadro’s number of particles; atoms if you are discussing an element, or molecules if a compound. Avogadro’s number has been determined by several methods, all of the accepted values lie within a range of +-1% about the value of 6.022045 x 10^23/gm. That is a large number, in this case approximately; 602,204,500,000,000,000,000,000 molecules of glucose.

1M is 1M 1M is 1M 1M is 1M 1M is 1M

I WILL GIVE U BRAINLIEST

Answers

Answer: YEAH ITS the third one

Explanation: duhh


Convert the following to Celsius
16) 100°K
17) 200°K
18) 273°K
19) 350°K

Answers

16) 100- 273= -173°celsius

17) -73°Celsius

18) °Celsius

19) 77°Celsius

Hi :)

16) 100°K= 100K − 273.15 = -173.1°C

17) 200°K= 200K − 273.15 = -73.15°C

18) 273°K= 273K − 273.15 = -0.15°C

19) 350°K= 350K − 273.15 = 76.85°C

Hope this helps :)

(this is 6th grade science so that’s the closet subject I could find) Do you know an adult who drinks coffee, tea, or soda pop? Think about that person and picture them in your mind. Write a description to help that person understand how they can smell their favorite beverage even though it’s a liquid.

Answers

Answer:

Well you could boil the liquid, That would make steam from the liquid. Noramlly you can smell steam.

Explanation:

Which of the following conclusions can be made about the sedimentary layers?

bed 2 was deposited after bed 3
bed 2 was deposited before bed 3
bed 3 was deposited before bed 1
bed 1 is the youngest

Answers

Answer:

I think it's the second one im not sure tho

Hope this helps :)

moles in 9.01x10^23 molecules water

Answers

Answer:

The answer is 1.50 moles

Explanation:

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{9.01 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{9.01}{6.02} \\ = 1.496677740...[/tex]

We have the final answer as

1.50 moles

Hope this helps you

Answer: 1.50 moles

Explanation:

Do all metals have more electrons than protons

Answers

Answer:

no

Explanation:

Now look closely at the patterns in the table. Compare the elements in each column and row. What can we say about
elements in the same group and elements in the same period of the periodic table?
Select all the correct answers.
The number of electrons in the second energy level increases by one down each column.
Elements in the same row have the same number of occupied energy levels.
For each column, the last occupied energy level has the same number of electrons.
The number of electrons in the first energy level increases by one from Li to Ne.

Answers

Answer: Elements in the same row have the same number of occupied energy levels. For each column, the last occupied energy level has the same number of electrons.

Explanation: Straight from PLATO.

On comparing the elements we can say that:

B. Elements in the same row have the same number of occupied energy levels.

Elements in periodic table:

In the periodic table, elements are arranged in an order of increasing atomic number. It comprises of seven periods and eighteen groups.

The elements present in the same row or in the same period will have equal number of energy levels or shells.

Thus, option B is correct.

Find more information about periodic table here:

brainly.com/question/15987580

please helppp!!!
Consider the following intermediate chemical equations.
C(s) +202(g) → CO(g)
CO(g)+302(g) → CO2(g)
How will oxygen appear in the final chemical equation?
O O2(g) as a product
O O2(g) as a reactant
O O(g) as a product
O 20(g) as a reactant

Answers

O₂(g) as a reactant

Further explanation

In chemical reactions, there is a reaction between reagents and products

Reaction:

aA + bB ⇒ cC

Substances A and B are called a reactants

Substance C is called a product

In the above reaction:

Reactants: C, O₂ and CO Products: CO and CO₂

CO functions as a product in the first reaction and functions as a reactant in the second reaction  

In the final chemical equation :

CO(g)+30₂(g) → CO₂(g)

O₂ is on the left so it is called the reactant

Answer: B. O₂(g) as a reactant

Other Questions
Im confused help please please help! newton's laws. please give a legit answer 2/9x + 3 > 4 5/9what graph shows the values that satisfy the expression Could someone help me out pls? Im taking a test and Id love help on this thanks A chemical equation is balanced if there are ______ ______ of each kind of ______________________ on both sides of the equation. which one of these reduce fraction? -What does it means Government as Contract?Another effect of the Great Awakening on colonial culture was the growth of the notion of the state (country) as a contract with the people. Parishioners during the revival gained an understanding of covenant/contract with their churches; they argued that each believer owed the church their obedience, and churches, in turn, owed their congregants the duty to be faithful to the Gospel. Parishioners, therefore, reserved the right to dissolve the covenant and to break ties with the church without prior permission. This notion of a covenant was a popular one in Puritan society and reflected a common/same biblical understanding of association. Present in the Mayflower Compact and later forming an ideological basis for breaking from Great Britain, the notion of covenant grew to link religion and politics in the colonies. The Ideals/beliefs of Puritanical covenant theology were manifested/showed in the Social compact of the Declaration of Independence . Under this belief, implicit/ hidden in the Declaration, disassociated/separation individuals in the state of nature agree to live and to be bound together under the same government. With the frequency by which believersbroke away from larger churches to form splinter groups, the colonists must have been accustomed to separating themselves from larger institutions/organizations such that of the king. Is -12 divided by -5 a rational number or irrational Consider the following debate between two students about their answer to the above question. Student 1: I thought that whenever one object exerts a force on a second object, the second object also exerts a force that is equal in strength, but in the other direction. So even though Earth is bigger and more massive than the Moon, they still pull on each other with a gravitational force of the same strength, just in different directions. Student 2: I disagree. I said that Earth exerts the stronger force because it is way bigger than the Moon. Because its mass is bigger, the gravitational force Earth exerts has to be bigger too. I think you are confusing Newton's third law with the law of gravity. Do you agree or disagree with either or both of the students? My BooThere's always that one personThat will always have your heartYou never see it comingCause you're blinded from the startKnow that you're that one for meIt's clear for everyone to seeOoh babyYou gotta rock your way with this oneOoh you will always be my booCome on[Alicia:]I don't know bout you allBut I know about us and uhIt's the only wayWe know how to rockI don't know bout you allBut I know about us and uhIt's the only wayWe know how to rock[Usher:]Do you remember girlI was the one who gave you your first kissCause I remember girlI was the one who said put your lips like thisEven before all the fame andPeople screaming your nameGirl I was there when you were my baby[Usher:]It started when we were youngerYou were mine my booNow another brother's taken overBut it's still in your eyes my booEven though we used to argue it's alrightIt's alright girl my boo that's OKI know we haven't seen each otherIn awhile but you will always be my boo[Alicia:]I was in love with you when we were youngerYou were mine my booWhen I see you from time to timeI still feel like my booAnd I can see it no matterHow I try to hide my booEven though there's another man who's in my lifeYou will always be my boo[Alicia:]Yes I remember boyCause after we kissedI could only think about your lipsYes I remember boyThe moment I knew you were the oneI could spend my life withEven before all the fameAnd people screaming your nameI was there and you were my baby[Usher:]It started when we were youngerYou were mine my booNow another brother's taken overBut it's still in your eyes my booEven though we used to argue it's alrightIt's alright my boo it's OKI know we haven't seen each otherIn awhile but you will always be my boo[Alicia:]I was in love with you when we were youngerYou were mine my booWhen I see you from time to timeI still feel like my booAnd I can see it no matterHow I try to hide my booEven though there's another man who's in my lifeYou will always be my boo[Usher:]My oh, my oh, my oh, my oh, my boo[Alicia:]My oh, my oh, my oh, my oh, my boo[Usher:]It started when we were youngerYou were mine my booNow another brother's taken overBut it's still in your eyes my booEven though we used to argue it's alrightIt's alright it's OKI know we haven't seen each otherIn awhile but you will always be my boo[Alicia and Usher:]I don't know bout you allBut I know about us and uhIt's the only wayWe know how to rockI don't know bout you allBut I know about us and uhIt's the only wayWe know how to rockIt started when we were youngerMy booNow another brother's taken overMy boo I need help in MATH!!!!!!!!!! Solve6x + 5 = 3x + 14 Which expression is equivalent to sin(20)cos(80) cos(20)sin(80)?sin(60)cos(60)cos(60)sin(60) Select the correct answer.Who answers the three economic questions in a command economy?O A. societyOB.governmentO c.businessesOD.market Scientists in a lab are working with two different samples of the element mercury. They know that the different samples are different isotopes.Which property of the isotopes must be different?a. the atomic numberb. the electric chargec. the element named. the mass number A train goes at a constant speed. If it covers 150 miles in 2 1 2 hours,What distance would it cover in 7 hours? Which African American was the first black person to get a doctorate from Harvard university Estimate the value of 13 (between which two whole number) Every 1 inch of vertical rise, 12 inches ramp length is required. What is the ramp length required for the rise of 10.5? If jack age is 5 years, 4 months old and he is expected to live 79.7. years. How many more years is jack is expected to live?