Chemistry Middle School

What was the hiker's average velocity during JUST Part B of the hike?

A) 10 km/hr southeast
B) 6 km/hr south
C) 0.17 km/hr south
D) 0.6 km/hr north

What Was The Hiker's Average Velocity During JUST Part B Of The Hike?A) 10 Km/hr SoutheastB) 6 Km/hr

Answers

Answer 1

Answer:

6 km/hr south

Explanation:

Ave. velocity:

Since he hiked from 9:45 a.m. to 10:45 a.m. which is 1 hour.

So, the average speed was 6 kilometres per hour

Answer 2
I believe the question to the answerThe answer is B!!!

Related Questions

Students find another rock that is sandy and white. They drip hydrochloric acid on the rock, but it does not fizz. Describe the processes that contributed to the formation of this rock.

pleasee help!

Answers

Answer: The processes that formed the rocks are deposition, cementation, and erosion because there was no chemical reaction (fizz)

Explanation:

because there was no chemical reaction (fizz)

What happens to the atoms that make up hydrogen fuel as it burns?

Answers

Answer:

When hydrogen fuel burns, its atoms combine with oxygen atoms in the air, which creates a chemical reaction that releases energy in the form of heat and light. The hydrogen atoms lose their outermost electrons, becoming positively charged ions (protons). These ions combine with the oxygen atoms to form water molecules (H2O), which evaporate into the air as steam. Therefore, the atoms that make up hydrogen fuel ultimately become part of water molecules during the process of combustion.

Explanation:

When hydrogen fuel burns, its atoms combine with oxygen atoms to form water molecules. So the atoms that make up hydrogen fuel become part of the water molecules.

Why do some objects with a greater mass float and some objects with less mass sink?

Answers

Answer: If an object is more dense than water it will sink when it’s in water, and if it is less dense than water it will float.
The density of an object is key. If the object is denser than water it will sink while an object with a lower density tan. Water but a large mass will float

Help me out<3 i give brainliest if iz correct

Help me out&lt;3 i give brainliest if iz correct

Answers

Answer:

I believe the answer is B :)

Explanation:

the answer is letter B.

Do you think rayon when burnt will stick to the body like other synthetic fibers?

Answers

In other words, since rayon is made from the plant fiber it does not get stick to our body while we burn it
it will not stick to the body most likely

most cases of cancers are caused by
a. mutation
b. radiation
c. tumors
d. drugs

Answers

Answer:

mutation

Explanation:

a mutation in the genes causes cancer cells to reproduce and infect others when it should kill itself off immediately

The answer is mutation

Do you think a moving skateboard has energy? Why or why not?
PLEASEEEEEE HURRY

Answers

Answer:

"Yes," a moving skateboard has energy.

When the skater seems to be in motion or throughout a movement, the potential energy converts itself into the kinetic form of energy, and then it becomes potential energy again.

Furthermore, somewhere after every movement, the same skateboarder was around a similar height, — in other words thus every time it is equally powerful.

The response is thus the right one.

Explanation:

Yes, every object in motion has energy.

Match these items.

1. imprint of plant or animal
original-remains fossil
2. undecayed plant or animal part
carbonized fossil
3. replaced by a mineral
petrified fossil
4. only carbon remains
cleavage
5. mountain
geology
6. from magma
metamorphic
7. from physical and chemical changes
igneous
8. sandstone
print fossil
9. helps identify rocks
landform
10. science of Earth
sedimentary

Answers

1. print fossil

2. carbonized fossil

3. petrified fossil

4. cleavage

5. landform

6. igneous

7. metamorphic

8. print fossil

9. geology

10. sedimentary

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The print fossil, original-remains fossil, petrified fossil, carbonized fossil, landform, igneous, metamorphic, sedimentary, cleavage, and geology are the respective matches as given in the question.

Print fossil is imprint of plant or animal and basically known as fossil impression. Original-remains fossil comprises of the original tissues and parts of  organism and undecayed plant or animal part. Petrified fossil is replaced by a mineral. Carbonized fossil is only carbon remains. Landform is a mountain. Igneous is from magma.

Metamorphic is from physical and chemical changes. Sedimentary rocks are sandstone. Cleavage helps to identify rocks. Geology is the study of science of earth.

Learn more about rocks and fossils:

brainly.com/question/2168243

What is the charge on the Cr in Cr2O72-

Answers

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

In the dichromate ion, the oxidation number of chromium is+6. The sum of the oxidation numbers in Cr2O72-, a polyatomic ion, is -2, the charge of the ion.

Analyze this map and provide 10 specific examples of weather conditions found in
this map. Number your examples from 1-10 and use the textbox. Give detail.

Analyze this map and provide 10 specific examples of weather conditions found inthis map. Number your

Answers

Answer:

May be thay can be tropical in south east and wet in middle, hot in west and cold in north.

Explanation:

(Sunny, windy, cloudy, cold, foggy, rainy, snowy, clear, warm(peace), hot(uncomfortable))

BRAINLY ME PLEASE IF HELPFUL!!!

If a substance has a density of 19 g/cm3, then what is the mass of 8 cm3 of this substance?

Answers

The mass is 2.375 grams
The mass is 3.375 grams

can praseodymium conduct electricity

Answers

Answer:

praseodymium can conduct electricity as it is one of it's conductivities

Yes praseodymium can conduct electricity

Genes are sections of DNA that code for a particular trait. Genes are

Answers

Answer: Genes are transcribed into RNA molecules, which are then translated into proteins.

Explanation: Genes are sections of DNA that contribute to certain traits, characteristics or functions. Genes code for proteins or parts of proteins that influence things like the immune system, skin pigmentation, hormone production, and eye color.

Answer:

Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes.

Explanation:

please help me with this science question, please only answer if you know the answer. also help me asap, thanks

please help me with this science question, please only answer if you know the answer. also help me asap,
please help me with this science question, please only answer if you know the answer. also help me asap,

Answers

Answer:

because it was once connected to Africa.

Explanation:

Back in the day, the whole world was a super continent called Pangea and when it started breaking apart due to the tectonic plates, the surface stayed similar, but moved apart

Tectonic plates are underneath the ground that we don’t no that are under the ground and when they push apart the move the ground

atoms and molecules are made up of

Answers

Les atomes sont composés de protons, électrons et neutrons.

How does this look? (Its for a science project about animal life

How does this look? (Its for a science project about animal life

Answers

Answer:

why is there a cherry on its head?

Explanation:

You may want to add details/description to the photo as it is a little confusing

yes what the person said above. we aren’t sure what it’s supposed to be or what the project was about but it is a great drawing just maybe explain a little

Simple and complex molecules are similar in that they both involve ____ atoms A water B simple C bonded D complex

Answers

Answer:

The answer is C.

Explanation:

Please give brainliest

Answer:

D

Explanation:

complex, in chemistry, a substance, either an ion or an electrically neutral molecule, formed by the union of simpler substances (as compounds or ions) and held together by forces that are chemical (i.e., dependent on specific properties of particular atomic structures) rather than physical.

People use hot air balloons to rise high above the ground and be pushed by air currents from one place to another. The diagram shows a hot air balloon.
A type of chemical reaction, called combustion, takes place between propane and oxygen in the burners.
a. Describe a likely result of this chemical reaction that allows a hot air balloon to rise.
b. Describe a design feature the distance a hot air balloon can travel. Explain your reasoning.

Answers

Fueled by propane cylinders, gas jets produce the hot air that fills the envelope (similar to ones you might use on a portable camping stove).

WorkingSince heated air rises, hot air balloons are functional. with the rest. As though it were floating in water, the balloon rises as a result of this. The balloon naturally starts to slowly deflate if the air is allowed to cool.The molecules in the air start to migrate and spread out as the air within the balloon is heated, which results in a decrease in the air's density. The heated air is pushed below the cooler, surrounding air. the warm air is pushed upward as a result of this.

For more information on hot air balloon kindly visit to

https://brainly.com/question/11178349

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What kind of matter is smoke? A. solution B. suspension C. colloid D. compound E. molecule

Answers

Answer:

C. colloid

Explanation:

Smoke is a collection of tiny solid, liquid and gas particles. Although smoke can contain hundreds of different chemicals and fumes, visible smoke is mostly carbon (soot), tar, oils and ash. Smoke is a collection of tiny solid, liquid and gas particles.

Answer:

C. Colloid

Explanation:

Edmentum/Plato (just took the test its 100% correct)

What is the difference between a mixture, a solution, and a pure substance?

Answers

A mixture is a compound of two or more substances a pure substance is only made of one kind of atom and a solution is composed of a liquid substance made of two or more types of atoms
a mixture is a material made up of two or more different Chemical substance/substances which are not chemically combined, a solution is a homogenous mixture of two or more substances in relative amounts that can be varied continuously up to what is called the limit of solubility, and a pure substance is a substance that has a fixed chemical composition

Heat energy is transferred on earth by the processes of convection, conduction, and radiation. How does heat energy cause materials to move during convection? Choose two statements that apply.

A. It causes colder materials to rise
B. It causes denser materials to sink
C. It causes warmer materials to sink
D. It causes less dense materials to rise

Answers

B and C
Colder materials sink
And warmer materials rise
B and C are the answers to this question

there was no science so like -w- uh huh... ASAP PLEASEEE

there was no science so like -w- uh huh... ASAP PLEASEEE

Answers

Answer:

ok so the answer is

4(energy)

5(kinetic energy)

6(potential energy)

7(gravity)

8(work)

Explanation:

I already learned this last year.

I agree with the person above and I need points ehhh

If the density of a liquid is 5 g/mL and the mass is 65 g, what would the volume be?

Answers

Answer:

Volume would be 13

Explanation:

Divide the mass by the density

65/5

Answer:

13 mL

Explanation:

Divide mass by density.

In which blood vessels does the exchange of gases take place?

A. Arteries

B. Capillaries

C. Diaphragm

D. Veins

Answers

Answer:

B: Capillaries

Explanation:

any of the fine branching blood vessels that form a network between the arterioles and venules.

This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.

B.

Which statement best describes how energy and matter move in a wave?
A
A wave transports energy without transporting matter.

B
A wave transports matter without transporting energy.

C
Neither energy nor matter is transported by a wave.

Answers

Answer:

A wave e transports energy without transporting matter

Answer:

the answer is A. a wave transpory energy without transporting matter

Please helpp!!!!!!!!
If the pattern of ions shown here for galena is expanded in every direction, how many sulfide ions would surround each lead ion? How many lead ions would surround each sulfide ion?

Answers

Answer:

An atom (ours, not Carroll's) consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. The positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. Most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. Although the nucleus is heavy, it is quite small compared with the overall size of an atom. The radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6 nm. * If an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.

Explanation:

PLZ HELP! WILL GIVE BRAINLIEST, 5 STARS, AND A THANKS!!
What are the similarities between "freezing" and "condensation"?
**Explain your thinking below using quotes from the text.**
~You will get reported if you answer with something else~

PLZ HELP! WILL GIVE BRAINLIEST, 5 STARS, AND A THANKS!!What are the similarities between "freezing" and

Answers

Answer:

The similarities between freezing, and condensation is, the stimulis.

Explanation:

The explanation to that is because the condensation will melt.

What measures the energy of a wave?

Answers

Answer:

ampiltude

Explanation:

Amplitude means a measure of the amount of energy in a wave. Notice in the drawing below how the amplitude measures the height a wave is going above or below the resting position of the wave.

Amplitude is the answer

Which is a more recent, more elaborate type of Japanese opera?

jingju
gamelan
kabuki
noh

Answers

It’s jingju because it was established in 1955
jingju
ooooooooooOoOoOoO

how many joules would it take to raise 2 grams of AL 1 degree?

Answers

Explanation:

Air has a heat capacity of about 700 Joules per kg per °K and a density of just 1.2 kg/m3, so its initial energy would be 700 x 1 x 1.2 x 293 = 246,120 Joules

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