Chemistry Middle School

Help me please and only answer if you know what the answer is

Answers

Answer 1

They have similar chromosomes

Related Questions

What is the density of an object whose mass is 120 grams and whose volume is 60 cm3? (D=m/v)

Answers

Answer:124.86 ib/cu ft

Explanation:

Answer:

its 2 g cm^-3

Explanation:

density = mass / volume

120 g / 60 cm^3 = 2 g cm^-3

help mehhh i will give out BRAINLEIST

Answers

Answer:

For the after reading part:

Explanation:

I think its right-

Yes paperclip u are right, sorry I was gonna answer too but they beat me

why does Australian get more uv light than othet parts of the world?

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I definitely agree whithe the first person that the earths orbit brings that part closer to the sun

Please help me I will give you the brain thing with extra points if you help me, please. I need to get this right. 9/10

Answers

Answer:B

Explanation:

got an 90 on the test

The answer would be a

Suppose you are shooting a basketball toward a hoop. As the ball rises in the air, its ---------------- energy increases and its ---------------------------- decreases.

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Answer:

Suppose you are shooting a basketball toward a hoop. As the ball rises in the air, its -------Potential --------- energy increases and its -----------kinetic----------------- decreases.

Explanation:

Kinetic energy is the energy of movement or change. Potential energy is the energy a system has as a result of being able to undergo some change. ... As an object falls its potential energy decreases, while its kinetic energy increases. The decrease in potential energy is exactly equal to the increase in kinetic energy.

kinetic//the movement energy
potential//energy by position

*WILL GIVE BRAINLISET* PLEASE ANSWER

Newton's second law of motion is F = ma.

A net force of 60 N north acts on an object with a mass of 30 kg. Use Newton's second law of motion to calculate the amount of acceleration the object will experience. Then explain how the amount of acceleration will change if the net force or the mass of the object increases.

Answers

Answer:

this was asked before here the screenshot

If F=ma then A= f/m so 60 divide 30 = 2
If force increases then acceleration will increase too example 90/30=3
But if mass increases acceleration decreases example 60/60 =1

3. The cities listed below, from Chicago to Pittsburgh, lie in a roughly straight west to east line. Data on temperature, barometric pressure, and sky conditions for each city are shown in the table below. Use the data to explain what types of air masses are present and/or moving among these cities and how this accounts for the weather. What will Pittsburgh’s weather be like within the next 24 to 48 hours?
City Temp (oF) Pressure (in.) Conditions
Chicago, IL 73 29.94 rising Clear
Indianapolis, IN 75 29.93 falling Partly cloudy
Columbus, OH 78 28.20 falling Light rain
Pittsburgh, PA 74 29.90 steady Mostly sunny
Answer:

Answers

For the next 24-48 hours, Pittsburgh will see light rain. The storm is moving west-to-east toward Pittsburgh, as indicated by a drop in pressure over western cities. Precipitation is usually associated with low pressure systems.

What is weather forecasting?Weather forecasting is the application of science and technology to predict atmospheric conditions at a particular place and time.People have been trying to predict the weather informally for thousands of years, but have been doing so formally since the 19th century.Weather forecasting is the application of science and technology to predict atmospheric conditions for a particular place and time.Humans have tried to predict the weather informally for thousands of years, but only formally since the 19th century due to incomplete understanding of the ocean, measurement errors in initial conditions, atmosphere and related processes.Weather warnings are important forecasts that protect lives and property.Forecasts based on temperature and precipitation are important for agriculture and therefore for commodity market traders. Temperature forecasts are used by utility companies to forecast demand for the next few days.Many people use the daily weather forecast to decide what to wear on any given day.

To learn more about weather forecasting, refer to:

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Which →two← factors decrease as the kinetic energy of the particles in an object decreases?

a

The object's weight.

b

The object's temperature.

c

The speed of the particles.

d

The size of the particles.

Answers

Answer:

a and c

Explanation:

I'm only sure on a but c is the second best so Yea don't completely trust it

The answer is A and C. I hoped this helped have a great day. :)

The graph below shows the motion of a car.

What is the average speed of the car between 0 and 8 seconds to the nearest hundredth in m/s?

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You did not show a graph !

Graph?? I only see white

How does a compound differ from a mixture?
The components of a mixture are in a fixed ratio
The components of a compound are in a fixed ratio

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Answer:

In a mixture, each substance is still the same and don't really combine. In a compound, the substances are chemically combined (so the substances that went in have technically changed).

Explanation:

A compound contains atoms of different elements chemically combined together in a fixed ratio. While on the other hand, a mixture is a combination of two or more substances where there is no chemical combination or reaction.

How many Earth's could fit inside the Sun? plz help

Answers

Answer:

one million earth's

Explanation:

one million earth's fit in the

About 1,000,000!!!!!!! That is a lot

A student is trying to lift a metal ball off the floor. The student is unable to lift the ball after several tries. Which of the following forces is most likely opposing lifting the ball?

possible answer: 1. Electric force
2. Frictional force
3. Gravitational force
4. Magnetic force

Answers

Answer:

i think it is three

Explanation:

it is a meatal ball soits going to be heavy and if it was 1 than his hands would be electricuted and its a meatal ball so if it is stationar than it should have no friction and if it had magnetic force aplied than it would be roling

Answer:

Explanation:

Which Item is denser than liquid water?

A. Metal fork
B. Plastic cup
C. Paper plate
D. Wooden spoon

Answers

Answer:

Explanation:

metal is denser, wood will float and so will paper and plastic

Plastic cup is more dense then liquid water

Which of the following groups of resources helps generate electricity and does not cause a lot of pollution?

possible answer: 1. Phosphate, oil, and water
2. Phosphate, oil, and silica
3. Wind, solar, and silica
4. Wind, solar, and water

Answers

i think 4 or 3 but not sure so dont trust me

Answer:

Explanation:

wind is used to run wind mills

solar the sun ray are converted into electricity using solar panel

water produces hydropower

An ionic bond is a bond between...

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Between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal.

Answer:

i don't know :/ I find answer For u

Explanation:

okay so the answer is

I need help due today!!!!!

Answers

Answer:5

grams per cubic centimeter

Explanation:

Note:

If the water rose

−

then the stone had a volume of

With a mass of

it must have a density of

XXX

g/cc

Explanation:

plz i need help please help

Answers

Non-metals I pretty sure

Non metals have a nice day

What best explains why sodium is more likely to react with another element than an element such as neon?

Sodium has one fewer proton than neon.
Sodium has one more neutron than neon.
Sodium has one fewer electron than neon.
Sodium has one more electron than neon.

Answers

Answer:

1 fewer electron

Explanation:

sodium has one fewer electron than neon

Which of the following would occur if the Thrush population was to suddenly decrease?

a
The population of Eagles would increase
b
The population of Eagles would decrease
c
The population of Dragonfly would decrease
d
The population of corn would increase

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Answer- B

Reasoning: Since Eagles directly eat Thrush, their populations would decrease.

The other answers are wrong because with the first choice, Eagles would not increase in population if one of their food sources were removed. For the third choice, Dragonflies wouldn’t increase. Since Thrush eat Dragonflies, the disappearance of Thrush wouldn’t hurt the population of Dragonflies. Lastly, The last option is wrong because corn isn’t reliant on animals to survive. If Thrush disappear, corn will not be affected. This leaves B. to be the answer.

Can you match them to the right one and right answer will get brainliest if you dont know pls dont answer thxs

Answers

The Answer is: 2,3,1

It’s gonna be - 2,3,1

An ionic bond involves the

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Answer: Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities, and is the primary interaction occurring in ionic compounds.

Explanation:

Hmmmm not sure let me see

After an impact involving a non-functioning satellite, a paint chip leaves the surface of the satellite at a speed of 96 m/s. After 17 seconds, how far has the chip traveled?

Answers

Answer:

1,632 meters.

Explanation:

Answer:

1,632 m i think

Explanation:

m = meters

HURRY NOW Scince 20 points

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I am also pretty sure the answer is B, but give the answer above me Brainliest. Have a great day

I usually don’t like to answer questions that already have one but I would agree. B is probably what they’re looking for.

Investigate and explain that when a force is applied to an object but it does not move, it is because another opposing force is being applied by something in the environment so that the forces are balanced.

The diagram below shows a box lying on a wedge. Two opposite forces are acting on the box. (1 point)

Force 1 acting downward and Force 2 acting upward on a square box lying on a wedge.

If the box is stationary, which of the following is true about force 1 and force 2?
1. Force 1 Force 2 Comparison of Forces
Gravity Friction Force 1 is stronger than Force 2
2. Force 1 Force 2 Comparison of Forces
Friction Gravity Force 2 is stronger than Force 1
3. Force 1 Force 2 Comparison of Forces
Gravity Friction Force 1 is equal to Force 2
4. Force 1 Force 2 Comparison of Forces
Friction Gravity Force 1 is equal to Force 2

Answers

Answer:

4. Force 1 Force 2 Comparison of Forces

Friction Gravity Force 1 is equal to Force 2

Explanation:

The answer is number 4

The force that holds two atoms together is called a(n) _______

gravity

nuclear force

reaction

chemical bond

Answers

The force that holds two atoms together is called a(n)chemical bond. Bond energy_ is a measure of the strength of a chemical bond. When atoms rearrange to form new combinations, a(n) chemical reaction has taken place. Such changes generally involve electrons in the highest principle energy level, or the valence she

The force that holds two atoms together is called a chemical bond.

What is a chemical bond

A chemical bond is a force of attraction that holds two or more atoms together to form a stable molecule or compound. Atoms consist of a positively charged nucleus containing protons and neutrons, surrounded by negatively charged electrons. In order to achieve a stable electronic configuration, atoms can undergo chemical bonding to fill their outermost electron shells.

Chemical bonds play a vital role in determining the physical and chemical properties of substances. The strength and type of bond between atoms influence factors such as boiling points, melting points, solubility, and reactivity. Understanding chemical bonds helps explain how different substances interact and form new compounds.

Learn more about force at

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PLEASE HELP BRAINLIEST 4 BEST ANSWER
Use the site above and pick any 5 elements and write a research report for 5 different elements. ( 3 sentence minimum per element)

Include the Name, Symbol, Atomic Number, Atomic Mass, and Common Human uses of element, if its present in a common molecule and if its dangerous to humans.

Answers

Answer:

which site

Explanation:

Provide the site and i will be glad to help you!

Use at least three complete sentences to explain how global wind patterns such as the prevailing westerlies in the northern hemisphere would be impacted if the rotation of Earth stops.(5 points)

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Answer:

If the Earth did not spin on its axis, the atmosphere would only circulate between the poles and the equator. And if this happens, the very same thing is bound to happen over again. That is, the atmosphere would only circulate in a back-and-forth pattern between the poles and the equator over and over.

Based on the food web, which of the following would occur if the snake population was to increase?

a
The hawk population would increase
b
The mouse population would increase
c
The hawk population would decrease
d
The grasshopper population would decrease

Answers

Answer:

c i think

Explanation:

becuse hawks hunt snakes for food aslo becuse

Answer:

its A. The hawk population would increase

Explanation:

because if there is alot of snakes then the hawks will have more to eat

Which of the following statements is true?

A. A solution is a pure substance
B. A solution is a mixture
C. A solvent is dissolved in the solute
D. A solution has the same properties as a colloid

Answers

Answer:

Explanation:

In chemistry, a solution is a special type of homogenous mixture composed of two or more substances. So I believe that it would be B. If it said as such a solute then it would be C.

all light is the same whether it comes from the sun a light bulb or anywhere

do you agree with this statement explain

Answers

NOT ALL LIBHT SOURCES ARE THE SAME

No, the light from a lightbulb or many other electronic stuff, it’s light brightness depends on 1. The object 2. The amount of electric. The sun on the other hand can burn your eyes and skin just by it’s heat waves and bright glare. The sun is the brightest thing.

All light being the same whether it comes from the sun a light bulb or

anywhere is False.

What is Light energy?

This is a type of kinetic energy which makes light to be visible to the eyes.

There are different sources of light which include:

SunElectric bulbCandle etc.

Light from bulbs and Sun involve photons being emitted at different

intensities which is why the light from both sources are different. The

Sun has more intensity and a different source than the Light bulb.

Read more about Light energy here https://brainly.com/question/8181719

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