Chemistry Middle School

help me pls omg , im stuck

Answers

Answer 1

Answer:

Explanation:

Related Questions

AHAHA KENMA SUPREMACY

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YESSSSS I ADORE HIM-

I need this-

kenma is just-

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

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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:

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

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

PREDICT: Which do you think would be the most adhesive and least adhesive to wax paper and why do you think this?
A) oil

B) Isopropyl alcohol

C) tap water

D) soapy water

Answers

The answer is B!!!!!

Answer:

Tap water would be the least adhesive to wax paper.

Oil would be the most adhesive

Explanation:

If you get wax paper and water right now, it will repel the water. Putting wax on anything makes it water repellent. I don't know how but this is just my prediction.

I feel like oil would be the most adhesive because oil repels water, so does wax paper. So I'd predict oil would hold onto wax paper the most.

Hope this helps!

ALSO PLEASE KEEP IN MIND THIS IS JUST MY PREDICTION

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:

Can someone help me rq??? :))

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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.

PLEASE HELP WILL GIVE BRAINLEST URGENT!!!!!!

When vinegar, an acid, is mixed with baking soda, a base, the reaction is similar to the reaction of Alka-Seltzer and water; a salt, water and carbon dioxide are produced. In two or more complete sentences, describe how your knowledge of balancing chemical equations can help you to determine the missing compound.

NaHCO3 + HC2H3O2 ⟶ ________ + H2O + CO2

Answers

Answer:

1) Carbon dioxide is the name of the gas.

2) The missing compound is

Step-by-step explanation:

1)When ever an acid reacts with baking soda brisk effervescence of carbon dioxide gas are released.

So, when citric acid reacts with baking soda it gives salt of sodium citrate , water and carbon dioxide gas.

According to law of conservation of mass:

Number of atoms on reactant sides are equal to the number of atoms on product side.

Number of atoms of an element on left hand side is equal to the number of atoms of that same element on the right hand side.

Number of hydrogen atom on reactant side = 5

Number of hydrogen atom on product side = 2+ x

5 = 2+x

x = 3

Number of carbon atom on reactant side = 3

Number of carbon atom on product side = 1 + y

3 = 1 + y

y = 2

Number of oxygen atom on reactant side = 5

Number of oxygen atom on product side = z + 3

5 = z + 3

x = 2

Number of sodium atom on reactant side = 1

Number of oxygen atom on product side = a

1 = a

The missing compound is

Explanation:

Answer:

1) Carbon dioxide is the name of the gas.

2) The missing compound is H3C2O2Na

If you need an explanation, please ask. I hope this helps! :)

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

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Answer:

Polar and Non-Polar Molecules

Explanation:

Polar and non polar

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

Answers

Answer:

gold

Explanation:

How do unicellular and multicellular organisms differ in structure and function?

Answers

Unicellular had one cell and multicellular has more than one

Which illustrates different states of a substance?

1. oxygen and nitrogen

2. sugar and water

3. ice and water vapor

4. limestone and crushed limestone

Will give brainliest for correct answer - with an explanation on why its correct -
not trying to be rude just want the correct answer, not guesses :)

Answers

Ice and water vapor because ice is a solid whereas water vapor is a gas. Two different states.

Hey mate
This is the ans
The ans should be D) because in the first 3 options states the same substance but limestone and crushed limestone are not same.
Plssss mark me as the brainliest

True or False; Vacuoles are bigger in plant cells because they store more water

Answers

Answer:

True

Explanation:

vacuole can take up more than half of the cell's volume. The vacuole holds large amounts of water or food especially in plants

I hope this helps :)

True........................

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.

please help asapppp

if you cant read the question is says : "sort the factors that affect and impact growth of plants. Drag and drop each word into the correct category in the chart below. Some words may go in more than one category"

pls donttt answer if you dont know.

Answers

Answer:

well i can't see half of the picture. unless im blind.

Explanation:

Basically genetic means that they’re things that the plant controls. For example: what it tastes like and how resistant it is to disease. Environment are outside impacts like droughts. Let me know if that helps or if you need more information to finish sorting

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

Answers

Answer:

CCCCCCCCC

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:

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:

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

At room temperature, aluminum is a solid and water is a liquid. How do the particles of the solid aluminum compare to the particles of the liquid water?
A. The particles in the liquid water and the solid aluminum are the same. They both vibrate and move slowly.
B. The particles in the solid aluminum vibrate and are tightly packed, and the particles in liquid water slide past each other.
C. The particles in the liquid water vibrate and are tightly packed and particles in the solid aluminum slide past each other.
D.The particles in the solid aluminum are close together with no regular arrangement, and the particles in the liquid water are well separated with a regular arrangement.

Answers

Answer:

Explanation:

The particles in the solid aluminum vibrate and are tightly packed, and the particles in liquid water slide past each other. The particles in the liquid water vibrate and are tightly packed and particles in the solid aluminum slide past each other.

Hope this helps, have a good day : )

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

Help! Please :) Thank you

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First one??

I believe this is the correct answer

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

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

Answers

Answer:

Explanation:

Answer:

It is D. Incline

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

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:

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! :)

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

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

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.

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