Chemistry Middle School

The table shows the densities of four samples, each of the same volume.


DENSITIES OF SAMPLES

Sample Density (g/cm3)
W 5.1
X 1.7
Y 7.3
Z 3.5

Which sample has the greatest mass?

Answers

Answer 1

Answer:

Its Y

Explanation:

Answer 2
The formula for density is D=m/v therefore the formula for mass is m=d(v) since v is a constant the sample with the highest density will also have the highest mass. Meaning that Y is the answer.

Related Questions

This separation of charge on (blank) of the molecule is called (blank).

Answers

Answer:

Polar and Non-Polar Molecules

Explanation:

Polar and non polar

What happens when weathering and erosion work together? A.Weathering B.Raining C.Erosion D.breaking
BRAINLIEST

Answers

Answer:

CCCCCCCCC

Explanation:

How are the volvox, euglena, paramecium, and amoeba similar and different in how they move, and eat?

Answers

Answer:

Both can hunt for their food (heterotrophs), but euglena can also make their own food (autotroph) with its chloroplasts. Amoeba have pseudopods to move/eat, but euglena have flagella to move. How are euglena and paramecium similar and different? ... Both also use flagella to move, but volvox move together in colonies.

Explanation:

Answer: wattskennedy is right

Explanation:

What is needed in order to create nuclear power? CHECK ALL THAT APPLY.

Uranium

Carbon

Atoms

Oxygen

Molecules

Answers

Answer:

uranium and atoms

Explanation:

should be uranium and atoms

SCIENCE! PLZ HELP FAST !! URGENT!!
What happens to potential energy when you move against the magnetic force?

Answers

Answer:  The field produces a repulsive force pushing them apart. They repel each other. In this case, the closer they are, the higher their potential energy will be. If allowed to move, they may move as far apart as possible or one will swing around to change its orientation.

Explanation:

The illustration shows volume levels of a liquid in a graduated cylinder before and after a mineral sample was placed into the graduated cylinder.
liquid, only, liquid, and, mineral,

According to this information, what was the volume of the mineral sample to the nearest milliliter?
9 mL
11 mL
47 mL
48 mL

Answers

Answer:

It's D.

Explanation:

Have a nice day.

48 ML I think :) I hope it’s right

Materials move across a cell membrane in a process called _______.

Answers

Answer:

Diffusion

Explanation:

Osmosis? Diffusion?

Which of the following is a combination of more than on simple machine?

A.Pulley
B.Wedge
C.Scissors
D.Incline

Answers

Answer:

D.

Explanation:

Answer:

It is D. Incline

What is the difference between a homogeneous and heterogeneous mixture?

Answers

A homogeneous mixture is made up of multiple different substances. (You can see different parts)
Ex: Cereal in milk or ice in soda

A heterogeneous mixture is a mixture that is mixed well. ( you can’t see the different parts)
Ex: Rain or air
You wake up in the morning and make yourself a cup of coffee. You pour the coffee in your cup, add milk, add sugar, and stir everything together. The result is a uniform cup of caffeinated goodness. Each sip should taste and look the same.

This is an example of a homogeneous mixture. In this type of mixture, the components are evenly distributed throughout and the mixture has a uniform appearance. You shouldn't be able to pick out the individual components. Additionally, you can describe a homogeneous mixture as having only one phase. A phase is any part of the mixture that has the same chemical properties and uniform distribution of the components.


Heterogeneous

When you're eating a bowl of cereal, you are consuming a heterogeneous mixture. You can easily see the different things that make up this mixture: the milk and the cereal. Each spoonful will have different distributions of the components.

A heterogeneous mixture has components that are not evenly distributed. This means that you can easily distinguish between the different components. A heterogeneous mixture has two or more phases. This doesn't necessarily mean phases of matter, like liquid or solid. For example, a mixture of water and oil has two liquid phases. Each phase has its own distinct chemical properties.

a sample substance has the chemical formula: H2CO3 , one molecule of the sample contains __ ????

Answers

Answer:

1,6,8

Explanation:

Periodic Table- H=1.C=6,O=8

Hydrogen is H, Carbon is C, Oxygen is O

Answer:

H=hydrogen

C=carbon

O=oxygen

H- 1

C- 6

o- 8

Explanation:

What are the four main components of a galaxy?
A. Gas, dust, rock, and planets
B. Planets, stars, gas, and rock
C. Stars, clouds, orbits, and other objects
D. Stars, gas, dust, and other objects

Answers

It will be D stars, gas, dust, and other objects

The four main components of galaxy are Stars, gas, dust, and other objects

Galaxy is a any type system that contain stars,dust, stars remnants, interstellar gas, dark matter and other objects to form universe.

It is derived from Greek word which means milky ,hence it is termed milky way.

Galaxies have different shapes and variations in which the systems are formed.

Galaxies have different in structure and the king of activities that occur in them. Some are site of formations of vigorous sites and so on.

Therefore,

PLS HELP ASAP

How does the mass of an object affect its force?

Answers

Answer:

If mass increases, force increases.

Explanation:

hope this helps, pls mark brainliest :D

How do matter and energy move through an ecosystem?
My scientific explanation is:

Your answer should include at least 6 complete sentences to explain the claim, evidence and reasoning.
Be sure to check your grammar and spelling.

Answers

Food chains allow energy to move through an ecosystem. For example, energy is transferred from organism to organism such as the sun gives energy to grass, grass gives energy to grasshoppers when they eat grass, mice eat grasshoppers, and snakes eat mice, eagles or bigger birds of prey eat snakes. A technique discovered by Charles Elton named energy pyramids display how energy is dispersed on a pyramid starting from producers to tertiary consumers. An example of a producer would be grass, primary consumer would be a grasshopper (herbivores), a secondary consumer would be a mouse/mice (eat herbivores), and a tertiary consumer (eat secondary consumers) would be an owl. Starting from the bottom of the energy pyramid (producers) to the top (tertiary consumers) it 10% of energy is available to travel up the pyramid. That is your scientific explanation!

When a force on an object becomes stronger, how does its motion change?

The object produces less friction.
The object gradually stops moving.
The motion of the object reduces.
The motion of the object becomes greater.

Answers

Answer: The motion of the object becomes greater.

I think it is D not to sure pls don't hate if wrong :(

Explanation:

____ relating to the separation of charges in a molecule
___ meaning to repel water, literally “fear of water”
__ this term describes the force of attraction between adjacent water molecules.
___ meaning attracted to water or literally “water loving”
___ term describing the tensional force created by water at its boundary with air
Word bank: Hydrophobic, Hydrophilic, surface tension, cohesion, polarity

Answers

Answer:1.polarity

2. Hydrophobic

3. Cohesion

4. Hydrophilic

5. Surface tension

Explanation:

Help! Please :) Thank you

Answers

First one??

I believe this is the correct answer

Identify the force used on your arm when you walk a dog on a leash and it tries to chase something.

Friction
Gravity
Strong pull
Weak push

Answers

answer is strong pull

Answer: The force used on your arm when you walk a dog on a leash and it tries to chase something is known as Strong pull.Strong pull is defined a physical force which is usually aggressive orcoercive and it involves the movement in a particular direction due to different factors or reasons. The Dog in the example has a leash on and applies a force in the direction ofthe thing it wants to chase which is a perfect example of a strong pull.

Explanation: please give me a brainlist

I need to write an essay on the help benefits of plants! You do not need to write an entire essay, but I would like points and website links! Thanks.

Answers

Talk about photosynthesis, the nitrogen cycle carbon cycle etc. For websites I suggest Brittanica or really any secure website that ends in .org, they tend to be the most accurate.

Explain the Flow of Energy in Photosynthesis: Where does the Energy come from initially? What is it called? What type of energy does it become? Finally what type of Energy is it broken down into? How does this all happen? Explain with details! I really appreciate your help

Answers

Answer:

The flow of photsynthesis comes from the sun

Explanation:

in which the plant absorbs. The plant then turns it into a type of food like glucose, protein, vitamin c etc. the plant uses this energy to help it grow!

Hoped this helped :)

plants absorb sunlight and use carbon dioxide to produce glucose and oxygen

PLZ HELPPPPPPPPPPPPP
Look at the table that shows values for Coast Guard search and rescue operations. Write an evaluation of the success of the Coast Guard’s efforts. Be sure to support your answer with evidence from the data table.

Answers

Answer: 20%

Explanation: that is the nuber of cases by thenuber of death rate

The answer is 20% hope this help

Which of the following elements does NOT need to be diatomic to exist in nature?

A. Hydrogen
B. Oxygen
C. Carbon
D. Nitrogen

Answers

I am pretty sure it is A

Compare and contrast the alkaline battery and a Zinc carbon battery. put in some other facts about them too. write somewhere around 2 paragraphs.



I'll mark brainlyest to whoever has the best answer and give them 50 points for helping me.

Answers

The alkaline batteries, have a higher energy density and the time a battery can remain in storage without losing any of its capacity. Also, there is a specially designed coating inside the batteries that reduces contact resistance for greater reliability. Lastly, the alkaline cells have an extra power formula to maintain power for a longer period of time in high drain devices. Alkaline batteries provide more energy than zinc carbon batteries.

The Zinc carbon batteries, are a reliable source of power for appliances that consume little energy. Some examples are: remote controls for televisions, clocks, and smoke detectors. A reason that you should use the Zinc carbon batteries is for, the low energy consumption. This will lead to being able to use the appliances for a longer time for the same money.

The difference between the batteries is the capacity. Because of composition, an alkaline battery, delivers more energy than a zinc carbon battery.
The only downside is that, both batteries need to be used in different appliances.

Hope this helps! :)

Water has 2 oxygen molecules and 1 hydrogen molecule

Your answer:

True


False

Answers

Answer:

false

Explanation:

water has 2 hydrogen molecules and 1 oxygen molecule. hint:H20

Answer:

False. There is 2 hydrogen and 1 oxygen molecules.

Pollen is transferred from the stamen of one flower to the stigma of another. What has occurred?

Answers

Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species. Self-pollination occurs in flowers where the stamen and carpel mature at the same time, and are positioned so that the pollen can land on the flower's stigma.
I think that does little animals are Making honey

Please help I’ll give you brainliest.
If I have a Lithium atom with 1 valence electron, and one oxygen atom with 6 valance electrons. And then I add 1 valence electron from lithium to oxygen, is the lithium stable?

Answers

Answer:

Yes.lithium is stable

Explanation:

Because lithium needs lose the valence electron to become stable

please help me!!
she makes model of a plant cell she viewed using a microscope. The scale is 1 um: 0.5 cm. The student
includes 6 mitochondria in the model.
How many mitochondria do the student see in the real cell?

a.9
b.3
c.6
d.12

Answers

Answer: c is 6 and that is the answer

Explanation: I took the test and got a 100

Put two books on top of your wooden block and calculate the sliding force of friction. Write your answer below. Sliding force of friction with weights 4.2 newtons. How does weight influence the sliding force of friction? Explain using the data above.

PLEASE HELP

Answers

Answer:

I need this answer too!!!!!!!!!

Explanation:

Can someone help me rq??? :))

Answers

you can use a fruit that grows on a tree, talk about the sun and everything that goes into growing
Something I ate was a banana things that are natural that helped in its creation and growth include soil, sun, and water/rain.

EASYYYYYYYYYYY A batter hits two balls during practice. Ball A travels 10 meters, while ball B travels 12 meters. The batter decides to hit ball A with less force. How will this change the motion of ball B?

The motion of ball B will increase.
The motion of ball B will decrease.
The motion of ball B will stay the same.
The motion of ball B will become the same as ball A.

Answers

Answer:

The motion of ball B will increase

Explanation:

Because if you hit ball A with less force than ball B then that means that ball B will go faster because you had hit ball A will less force witch will not be as faster as ball B.

Answer:

The first one

Explanation:

What element has the most Protons/ Neutrons/ and electrons.

Answers

Answer:

gold

Explanation:

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