Chemistry Middle School

HELP NEED THIS DONE BEFORE 9:45!!!!!!!!!!!!!!!! WILL GIVE 100 POINTS AND BRAILIEST IF DONE BEFORE 9:45!!!!!!!!!!!!!

HELP NEED THIS DONE BEFORE 9:45!!!!!!!!!!!!!!!! WILL GIVE 100 POINTS AND BRAILIEST IF DONE BEFORE 9:45!!!!!!!!!!!!!

Answers

Answer 1

Answer:

1.) 742.57 m/s

2.) 132

3.) 4.375 hours

4.) 1080

5.) 81.6 km per hour

6.) 20 min = 1,200 secs1000 / 1200

Explanation:

Your Welcome!

Answer 2

Answer:

1.) 742.57 m/s

2.) 132 m

3.) 4.375 hours

4.) 1080 m

5.) 81.6 km per hour

6.) 20 min = 1,200 secs1000 / 1200

Explanation:

**Brainliest would be appreciated**

Related Questions

Is the Artic considered a desert? why or why not?

Answers

Answer:

Both, much of the artic is a desert including the artic basin, Canadian Artic Archipelgo, and the north pole because the average precipitation is between 150-250mm. This is below 250mm which is the agreed level to be considered a desert.

No because it isn’t dry and hot.

Match the term with its description.

Acid:
Base:
Ions:
pH:

Definition:
A value from 0 to 14 is used to specify how acidic or basic a compound is when it is dissolved in water


Used to measure the pH of substances by determining their hydrogen ion concentration


A compound that increases hydroxide ions (OH−) when it is dissolved in a solution


A compound that increases hydrogen ions (H+) when it is dissolved in a solution

Answers

A value from 0 to 14 is used to specify how acidic or basic a compound is when it is dissolved in water= pH

A compound that increases hydroxide ions (OH−) when it is dissolved in a solution= Acid

A compound that increases hydrogen ions (H+) when it is dissolved in a solution= ions

Used to measure the pH of substances by determining their hydrogen ion concentration= base

Answer:  pH goes with A value from 0 to 14 is used to specify how acidic or basic a compound is when it is dissolved in water

base goes with A compound that increases hydroxide ions (OH−) when it is dissolved in a solution

ions goes with Used to measure the pH of substances by determining their hydrogen ion concentration

acid goes with A compound that increases hydrogen ions (H+) when it is dissolved in a solution

Explanation: i took the test and got it right

How is a mixture such as a plate of pasta different from a mixture such as air

Answers

Answer:

Well there is a lot of differences between the two. Its called homogeneous and Heterogeneous mixtures. Homogeneous mixtures are all the substances are evenly distributed throughout the mixture (salt water, air, blood).  Heterogeneous mixtures are the substances that are not evenly distributed (chocolate chip cookies, pizza, rocks). So Pasta with sauce and meatballs is heterogeneous and air is homogeneous




HOPE THIS HELPS HAVE A GREAT DAY!!~

Explanation:

What happens to an object if the total of the forces acting on it are greater than zero?
Select one:

Nothing will happen to the object.

The object’s motion will change.

The object will move forward.

The object’s motion will remain the same.

Answers

The objects motion will change
B is the correct answer

How does this support the theory that whales evolved from walking mammals? in embryo evidence

Answers

Answer:

A embryo's, Whales have small back limbs which disappear before birth.

Explanation:

There are lots of evidence in a whale's body and biology suggesting its ancestors lived on land. They have paddle-shaped flippers that encase hand bones with five 'fingers,' and they breathe air and feed their young with their own milk.

Why will a sound wave travel through a solid more quickly than through a gas?
Group of answer choices

The particles in a gas are close together, which means the vibrations of the sound wave transmit more slowly.

The particles in a gas are spaced farther apart, which means the vibrations of the sound wave transmit more quickly.

The particles in a solid are spaced farther apart, which means the vibrations of the sound wave transmit more quickly.

The particles in a solid are closer together, which means the vibrations of the sound wave transmit more quickly.

Answers

Answer:

the particles in a solid are closer together, which means the vibration of the sound wave transmit more quickly.

Because it’s all tight together?

i need help w this..
A pneumonic device is a memorization tool that helps you remember things. For example, if you can read music you probably have heard, “Every Good Boy Does Fine” to learn the names of the lines on the treble clef EGBDF. Or maybe your math teacher taught you, “Please Excuse My Dear Aunt Sally,” to help you remember the order of operations. It is now your turn to think of a pneumonic device to remember the water cycle in order. Write your pneumonic device below.

Answers

evaporation condensation transpiration precipitation
Emily, come to papa

Which of these shows the common stages of growth for a flowering plant?
leaves, seed, shoot, root system, stem or trunk, flowers
stem or trunk, root system, seed, shoot, leaves, flowers
seed, shoot, root system, stem or trunk, leaves, flowers
flower, seed, shoot, stem or trunk, root system, leaves

Answers

Answer:

c

Explanation:

C because

leaves don’t ever come first (A)

it just doesn’t make sense (B)

the flower does not come first (D)

As the of the force of the shot increased, ___ ?
the puck traveled ?
This is because a force leads to a bigger change in an object's motion ___ ?
Friction had the effect on the puck's movement ?
as the friction force increased, the puck traveled ?
This is because friction works in the direction as an object is moving ?

Answers

It will go fast and fast because force on a object makes it go faster but as soon as not more force is being applied be begans to slow down

To calculate acceleration you must
Select one:

multiply the force and mass

add the force and mass

divide the mass by the force

divide the force by the mass

Answers

Divide the force by the mass

F=ma; when you rearrange, divide m to the other side. you end up with a=F/m
The answer is Divide the force by Mass

What is a sedimentary rock?

A. a type of rock that is formed over long periods of time by layers of silt building up on the floor of a body of water

B. a type of rock formed over long periods of time by the cooling and solidification of molten Earth material

C. a type of rock that is formed in a very short period of time by sudden violent volcanic eruptions into the ocean

D. a type of rock that is formed over long periods of time by the transformation of existing rock types

Answers

Answer:

answer is D

Explanation:

sedimentation is the process to make the sedimentary rock. they are formed by using minerals or fossils or other rock types

It would be A, sediment builds up over time and is compressed into rock over millions of years. That is why when you look at sedimentary rock is has clear layers of sediment. Hope this helps you out!

Part A Cut off the top and one side of the milk carton as shown. Use the hole punch (or scissors) to make two holes on opposite sides of the carton. Make sure the holes are low enough for the rubber band to launch the car. Thread the rubber band through the holes, and secure it using paper clips. Stretch the rubber band to launch the toy car away from the box. Pull back the rubber band to different distances, and explain what happens.​

Answers

Answer:

the harder you pull on the rubber band the further the toy launches.

Explanation:

because i got it right and its common sense

Which two substances are among the four major types of organic compounds made by living things?
A. Phosphates
B. Nitrates
C. Proteins
D. Lipids

Answers

Answer:

Lupids

Explanation:

D:)

C and D proteins and lipids

Part H In parts E, F, and G, which data sets (corrective lenses, glasses, or contacts) show the most similar variation between Doctors?

Answers

Answer: Doctor A Corrective Lenses: 745, 726, 769, 765, 756, 742, 757, 748, 770,

Explanation: I took the test! i have a great day :)

Which statement best defines the term inherited trait?

A. behaviors passed down from parents
B. physical qualities passed down from parents
C. physical qualities parents teach children to have
D. physical qualities and some behaviors passed down from parents

Answers

Answer:

d

Explanation:

some physical qualities from our parents, it's a good chance we will inherit some of their qualities.

Which of these shows the common stages of growth for a flowering plant?
leaves, seed, shoot, root system, stem or trunk, flowers
stem or trunk, root system, seed, shoot, leaves, flowers
seed, shoot, root system, stem or trunk, leaves, flowers
flower, seed, shoot, stem or trunk, root system, leaves

Answers

Answer:

everything because every part are equally responsible for the growth of plant

I think leaves is the correct answer

Oxygenated blood leaves the lungs and enters which heart chamber?

Answers

left atrium

Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.

Explain why a food web is a better illustration of an ecosystem]= than a food chain

Answers

Answer:

The food web provides a better model of an ecosystem because the food web is a model between MANY different consumers and producers in an ecosystem. … The food chain would break down and if the food chain breaks down all the animals would die, and the ecosystem will no longer exist.

Explanation:

HELP PLEASE AND QUICK!!!!!!!!!!!!!!!!!!!

Make a prediction for what science and technology may uncover in the next few decades.

Answers

My prediction for what science and technology may occur in the next few decades is the increase of groundwater increasing, with many drought occurrences to the environment. For technology, I suppose that there may be some new inventions for both political and environmental usage to increase the intensification of agriculture in order for us to have crops to eat. Furthermore, I predict that our significant key issues are resolved as time goes on, such as global warming, inflation, ocean acidification, etc.

help with science question

Answers

Answer:

(4) Inner core. (5) magma. (6) crust (7) Convection current. (8) energy waves

Explanation:

inner core, magma, crust, convection current, energy waves

the figure shows the great ocean conveyor belt. which best describes what this model represents?

A. The model shows how ocean currents change the salinity of water.

B. the model shows how ocean currents move heat energy around earth

C. the model shows how salinity of water affects its density

D. the model shows how the density of water differs between the north Atlantic and other parts of the ocean.

Answers

Answer:

d

Explanation:

The ocean conveyor belt shows the movement of the oceanic water and the salinity. The model represents the density of the water in different regions of the world. Thus, option d is correct.

What are ocean conveyor belts?

Ocean conveyor belts are the oceanic current movement in their oceans across others and how the water moves across the water bodies across the globe.

The model shows that high salinity water gets heavy and sinks in the ocean of North Atlantic but the water of the Indian and the pacific oceans are less saline and remains at the surface.

Therefore, option D. the water differs in oceans based on density.

Learn more about ocean conveyor belts here:

https://brainly.com/question/3401456

#SPJ2

Why does the Earth experience two high and two low tides each day?

The moon orbits the Earth twice as fast as the sun.

The moon orbits the Earth completely once per day.

The moon and the sun create their own high and low tides.

The moon passes over the same location above the Earth's surface twice per day.

Answers

B cuz I said so also cuz I’m smart
B the moon orbits the earth completely once per day

Which two substances are among the four major types of organic compounds made by living things?
A. Phosphates
B. Nitrates
C. Proteins
D. Lipids

Answers

Answer:

D:)

Explanation:

Lipids

what are some consequences of water pollution?

Answers

Answer:

At the bottom

Explanation:

-Destruction of aquatic flora and fauna
-Economic downturns
-serious health problems


And more!! We need to beware of our actions

can someone help me w this? A pneumonic device is a memorization tool that helps you remember things. For example, if you can read music you probably have heard, “Every Good Boy Does Fine” to learn the names of the lines on the treble clef EGBDF. Or maybe your math teacher taught you, “Please Excuse My Dear Aunt Sally,” to help you remember the order of operations. It is now your turn to think of a pneumonic device to remember the water cycle in order. Write your pneumonic device below.

Answers

Water cycle stages: Evaporation, Transpiration, Condensation, Precipitation

Edward took Charlie's pencil

How do the data support your claim above?
Explain your statement above. Be sure to refer to specific pieces of data from your experiment that support your argument.

Answers

Answer:

i need more information give me more pictures

Explanation:

lol

Answer:

the data will support my theory if the results are right for my hypothisis

Explanation:

What causes water pollution?

Answers

Answer:

Good answer below, just adding on

Explanation:

Runoff of chemical products, animal waste, and especially human waste products such as different types of trash like scrap metals and plastic greatly increase water pollution. Additionally, oil leaks and spills can also lead to severe water pollution. As a general statement I'd say that human activities that are not monitored and are either directly dumped into water ways or are caught in run off cause water pollution.

How can speed be described?
Select one:

The mass multiplied by the acceleration of an object.

The force on an object divided by the mass of an object.

The distance an object travels at a certain velocity.

The distance travelled by an object in a certain time.

Answers

Answer:

The mass multiplied by the acceleration of an object.

Explanation:

Please give brainliest, It's not much, but it's honest work.

The distance an object travels at a certain velocity

Explain the water cycle in your own words. make sure u tell the steps in order

Answers

Answer:

Collection - Evaporation - Condensation - Precipitation

Explanation:

The Water cycle is a series of continuous events that cause rain

The brain, spinal cord, and nerves are all major organs of the ___ system.

Answers

Answer:

nervous system

Explanation:

nervous system

nervous systemsystemsystem

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