Chemistry Middle School

The edges of South America and Africa seem to fit together like a puzzle.
A.true
B.false

Answers

Answer 1

Answer: true

Explanation:

Answer 2

Answer:

It's true...

Explanation:

Related Questions

Please help I will give brainlist

How would you write the formula for sugar-water solution if the formula for salt-water solution is written as NaCl(aq).


The formula for solid salt is NaCl(s).


The formula for solid sugar is C6H12O6(s).

Answers

Answer:

Explanation:

The chemical or molecular formula for sucrose is C12H22O11.

Select all of the compounds.
Group of answer choices

water (H2O)

gold (Au)

nitric acid (HNO3)

cobalt (Co)

oxygen (O2)

Answers

Compounds have more than one element

H2O
HNO3

___________________ can be renewable or nonrenewable.
isn't it fossil fuels? i'm not sure

Answers

Answer:

wood, aluminum, gemstones, fabric, paper, rock and many others can be renewable or nonrenewable.

Hope i get brainliest

Explanation:

Fossil fuels is indeed correct.

The formation of hurricanes, cyclones, and typhoons
A.true
B.false

Answers

True homie Bc I said it was
I say true aswell cause it makes sense

Which three temperature readings all mean the same thing?


273 Kelvin, 100 degrees Celsius, 212 degrees Fahrenheit

100 Kelvin, 0 degrees Celsius, 32 degrees Fahrenheit

273 Kelvin, 0 degrees Celsius, 212 degrees Fahrenheit

373 Kelvin, 100 degrees Celsius, 212 degrees Fahrenheit

Someone please help!

Answers

The last one is correct :)

Answer:

273 Kelvin, 0 degrees Celsius, 32 degrees Fahrenheit

Explanation:

What kinds of changes happen to water as it goes through the water cycle? Are they physical or chemical?

Answers

Answer:

When water changes state in the water cycle, the total number of water particles remains the same. The changes of state include melting, sublimation, evaporation, freezing, condensation, and deposition. All changes of state involve the transfer of energy.

Explanation:

and its physical

Answer:

The answer is Physical

Explanation:

The changes of state include melting, sublimation, evaporation, freezing, condensation, and deposition. All changes of state involve the transfer of energy. They are all the same but no matter what state it's in it's still water so it's physical.

discord anyone? RaTqUeEn2#8785

Deforestation is the __________.
A.
cutting down or burning of all the trees in a forested area
B.
replanting of trees in an area where trees were cut down
C.
managing of forests for the benefit of people
D.
adding of nutrients to topsoil in order to make land more arable

Please select the best answer from the choices provided
A
B
C
D

Don't have to answer!

Answers

The answer would be letter A
The answer is A I’m answering because I need points

What kind of change, physical or chemical, is happening when wood burns? How can you tell?

Answers

Answer:

Wood changes chemically to carbon dioxide when it burns and leaves a residue of ashes. These ashes cannot be changed back to wood. So it is a chemical change.

chemical
physical means it can go back to its shape; chemical it cannot.
for example when wood burns you can’t get that wood back to before it was burned!

hope this helps!

Plz HELP ITS SCIENCE!

Answers

Cell wall:
-acts like a skin
- most selectively controls what is inside and outside of the cell
-rigid

Cell membrane:
-gives a plant cell
-not rigid
Cell Wall
1) Acts like skin.
2) Rigid.
3)Gives the plant cell its shape.



Cell Membrane
1) is not rigid.
2) More selectively controls what goes in and out of the cell.

Infer How do you think these bones are involved in a whale’s movement?

Answers

I think that the bones involved in a whales movement help there tail move so they can swim
By keeping the muscle from flailing around and add support and stability when it moves its body,

The diagram represents liquid water in a pan on a hot plate. The liquid water is boiling and changing into water vapor. The process of boiling water is considered to be a

Answers

Answer:

I guess c?

Explanation:

take my answer by a grain of salt but the process of boiling water leads to physical change because eventually all water will become water vapor if boiled long enough

C is the answer to this question hope it’s right

Would the following atoms have similar reactivity?

A) Elements in Group 2 have 2 energy levels.

B) Elements in Period 7 have 7 valence electrons.

C) Elements in Group 13 have 13 valence electrons.

D) Elements in Group 13 have 13 valence electrons.

Answers

I think D, not sure though!
Ur answer is d elements is group 13 have 13 valence electrons

Land bridges across oceans are used to connect all continents on earth.
A.true
B.false

Answers

Answer:

"A. True", is the right answer.

I’m going with him I believe it’s true

A chemist is using 341 milliliters of a solution of acid and water. If 16.1% of the solution is acid, how many milliliters of acid are there? Round your answer to the nearest tenth.

Answers

We need to assume that the acid in question is a liquid (not a solid or a gas),

and we need to assume that the 16.1% is specified as 16.1% (v/v) ,

where "v/v" means volume in volume,

meaning 16.2 milliliters of that acid are contained in 100 milliliters of the solution of acid and water.

With those assumptions, the ratio of acid volume to solution volume is

x/342 = 16.1/100 , where x= number of milliliters of acid in the 342

milliliters of solution.

x/342 = 16./100 ---> x=342x16.1/100 ---> x=55 (Rounded)

What are the 3 most important ecosystem services of a coral reef
1: Home to housands of species of fish, plants, and turtles

2: Corals provide treatments to human illnesses.

3: Reduces wave energy and helps protect against tsunamis

4: Heats up the planet.

5: Provides a good source of tacos.

Answers

2 Corsls provide treatments
1. Home to thousands of species of fish plants and turtles
2. Corals provide treatments to human illnesses
3. Reduces wave energy and helps protect against tsunamis
The other two answers aren’t true and don’t make sense

Acceleration due to gravity =


100 m/s2



9.8 m/s2



62.3 m/s2



1.2 m/s2

Answers

Answer:

9.8

Explanation:

no explanation bbbbnnnnnnnnnnnnnnnnnnn

9.8m/s2 is the correct answer

PLEASEE HELP ASAP WILL MARK BRAINLIEST
This is on Asexual reproduction and I don't understand this at all so pleasee help

Answers

Answer:A,A,b,b

Explanation:i think i am learning this right now too!

I believe it is A, A, C, D

plz help .....................

Answers

Answer:

1. conduction

2. radiation

3.convection

4. conduction?

5. radiation

6. convection

7. convection

8. convection

9. radiation

10.radiation

(sorry if they aren't all correct)

What is the influence of temperature on a chemical change?

Answers

Answer:

Increasing the temperature will cause chemical changes to occur faster. Decreasing the temperature, causes the particles to lose energy which causes them to move around less and slower. The less they move, the less collisions occur, and the less reactions occur between the chemicals = slower reaction rate.

Explanation:

Please mark me brainliest

Which of the water alternative energy source has an energy transfer chain of GPE-->KE-->EE?

Answers

Um what’s the question?
Elastic Potential Energy. Uses Gravitational potential energy, kinetic energy and EE.

How is science based on observation used as evidence? How can evidence be used?

Answers

Answer:

Explanation:

Researchers gather empirical evidence through experimentation or observation. Empirical evidence is information acquired by observation or experimentation. Scientists record and analyze this data. The process is a central part of the scientific method.

Answer:

Science Produces Explanations That Can Be Tested Using Empirical Evidence. Science requires that scientific explanations of phenomena be based on events or mechanisms that can be observed in the natural world. This is how science builds a base of shared observations and ideas to which new knowledge can be added.

Explanation:

Fossils of tropical plants have been found in extremely cold regions.
A.true
B.false

Answers

false because they would freeeze
I think false it would have been gone by doing that

I need help QUICKLY!!!!!!!!

Answers

Answer: Do you take Ms. Reyes

Explanation: The answer is Outside air, Nose, Lungs, Bloodstream, Cell

Answer:

outside air

nose

lungs

bloodstream

cell

which one should I go in ??????

Answers

Answer:

the hatchery I think

Explanation:

because i think

True or False: Thermal energy can not transfer when particles of matter are in direct contact with each other, as they are not in solids, liquids,or gases.

Answers

Answer:false

Explanation:

that would be false hope it’s right !!

2. A change in velocity (speed and/or direction) is... *
A.speed
B.Velocity
C. Acceleration

Answers

acceleration cause that is a magnitude
the answer is acceleration

1. The ocean is also known as Earth's _____. *
A. evaported cloud
B. Giant Collector
C. Condensed Liquid
D. None o the above

Answers

Answer:

Earth is often called the ocean planet because it is 70% covered in water.

Explanation:

D.

D. none off they above because the ocean isnt a cloud it doesn’t collect things and its not condensed

European and North America coal fields line up.
A.true
B.false

Answers

Answer:

The Answer Is A

Explanation:

When balancing a chemical equation, which of the following are you allowed to do?

Take away substances

Add coefficients

Change subscripts

Add new substances

Answers

You are only allowed to Add coefficients

Answer:

Add Coefficients

Explanation:

You CAN'T change the identity of an element or substance in an equation. You can only change coefficients.

A period of inactivity in a plant, where it does not grow to survive unfavorable environmental condidtions

Answers

Answer:

Dormancy

Explanation:

dormancy is the correct answer
Other Questions
May24Sold merchandise on account to Old Town Cafe $18,450. The cost of goods sold was $11,000.Sept.30Received $6,000 from Old Town Cafe and wrote off the remainder owed on the sale of May 24 as uncollectible.Dec.7Reinstated the account of Old Town Cafe that had been written off on September 30 and received $12,450 cash in full payment.Journalize the above transactions in the accounts of Zippy Interiors Company, a restaurant supply company that uses the allowance method of accounting for uncollectible receivables. Refer to the Chart of Accounts for exact wording of account titles.CHART OF ACCOUNTSZippy Interiors CompanyGeneral LedgerASSETS110Cash111Petty Cash121Accounts Receivable-Old Town Cafe129Allowance for Doubtful Accounts131Interest Receivable132Notes Receivable141Inventory145Office Supplies146Store Supplies151Prepaid Insurance181Land191Store Equipment192Accumulated Depreciation-Store Equipment193Office Equipment194Accumulated Depreciation-Office EquipmentLIABILITIES210Accounts Payable211Salaries Payable213Sales Tax Payable214Interest Payable215Notes PayableEQUITY310Common Stock311Retained Earnings312Dividends313Income SummaryREVENUE410Sales610Interest RevenueEXPENSES510Cost of Goods Sold520Sales Salaries Expense521Advertising Expense522Depreciation Expense-Store Equipment523Delivery Expense524Repairs Expense529Selling Expenses530Office Salaries Expense531Rent Expense532Depreciation Expense-Office Equipment533Insurance Expense534Office Supplies Expense535Store Supplies Expense536Credit Card Expense537Cash Short and Over538Bad Debt Expense539Miscellaneous Expense710Interest ExpenseJournalize the transactions in the accounts of Zippy Interiors Company, a restaurant supply company that uses the allowance method of accounting for uncollectible receivables. Refer to the Chart of Accounts for exact wording of account titles.How does grading work?PAGE 1JOURNALACCOUNTING EQUATIONDATEDESCRIPTIONPOST. REF.DEBITCREDITASSETSLIABILITIESEQUITY1 2 3 45 67 8 9 1011 8/t; t = 4 Please someone. 30 points! The purpose of education is to convey information, to encourage critical thinking,and teaching practical skills. You want to find out what students in a co-educational high school think about the new headteacher. Youinterview five boys chosen at random from Year 11. Is this a biased sample? Which event led to the policies established by the Monroe Doctrine? Can yall see the pic Five friends go to the movies. They each purchase a ticket for t dollars, a popcorn for pdollars and a soda for s dollars. Which expression represents how much the five friends spentat the movies altogether? *O A 5tpsB 5(t + p + s)O C 5t+p+sO D5+t+p+s what is the value of x?enter your answer in the box Solve the equation./8 = 9 c = A heavy snowstorm is predicted to occur in Boston on the same night as the citys professional basketball team is playing a game. The snowstorm, if it occurs, will make it difficult for people to drive into the city. In anticipation of lower demand, the arena lowers the prices of tickets to the game. When compared to quantity demanded in the absence of the storm and the price change, the new quantity demanded:__________1) will definitely be lower than before.2) will definitely be higher than before.3) will be the same as before.4) cannot be determined. There are 15 squares and 9 circles. What is the simplest ratio of circles to squares? What is the sum for the thing List 5 basic structures of bacteria morphology. Can anyone help me with science stuff Sorry to bother yall again but can someone pls help me PLEASE HELP! 46 POINTS (hopefully you can answer it now) Petra jogs 6 miles in 54 min. Fine the unit rate in minutes per mile In front of your whole team, your coach tells you that you lost the game for them. You thank her for the feedback and decide to practice twice as hard for the next game. Is this reaction Proactive or Reactive? Which sentence incorrectly usesan apostrophe to showpossession?A. I ate all of my peas so that I could go toGeorge's football game.B. The teacher handed back everyones paper'sexcept mine.C. The newspaper's gossip columnist used adifferent name so he wouldn't be recognized. What other theme is addressed in the passage? Qu sea compasivo contigo! *1. exclam2. contest3. lo consol4. pregunt5. se quej