Chemistry High School

Fill in the blanks with the correct word. During diffusion, molecules move from areas of concentration to areas of Diffusion does not require to move molecules. concentration. Previous Activity


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Fill In The Blanks With The Correct Word. During Diffusion, Molecules Move From Areas Of Concentration

Answers

Answer 1

Answer:

1) higher

2) lower

1) energy

Explanation:

hope this helps you.

I would really like a brainliest :D

thank you and have a nice day.

Answer 2

Answer:

1) higher

2) lower

1) energy

Explanation:

Related Questions

When sugar is dissolved in water and mixed well the resulting solution is classified as a

Answers

Answer:

homogeneous mixture

Explanation:

Choose all the answers that apply. What do all cells do? reproduce contain hereditary information have a nucleus break down food into energy have a cell membrane

Answers

Answer:

contain hereditary information

break down food into energy

Explanation:

Hereditary information is contained in genes and genes are found inside the cell. This implies that the cell contains hereditary information of organisms. This hereditary information is passed on during cell division from parent to daughter cells.

Metabolism occurs in the cells. The cells use oxygen to break down food materials to produce energy.

Which of the following is a property of a pure substance?

It consists of different types of compounds.

It may have substances in different states of matter.

The ratio of the particles that make it up is fixed.

Its components can be separated by employing physical methods.

Answers

Answer:

The ratio of the particles that make it up is fixed

Explanation:

How many grams of carbon (C) would be present in carbon monoxide (CO) that contains 2.666 grams of oxygen (O)?

Answers

Atomic mass of C=12
Atomic mass of O=16
2,666x12/16=1,9995
Hope that is right

Answer:

Explanation:

Given :

Mass of oxygen containing carbon monoxide (CO) is 2.666 gram .

To Find :

How many grams of carbon (C) would be present in carbon monoxide (CO) that contains 2.666 grams of oxygen (O) .

Solution :

By law of constant composition , a given chemical compound always contains its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation.

So , volume of solution does not matter .

Moles of oxygen ,

Now , molecule of CO contains 1 mole of C .

So , moles of C is also 0.167 mole .

Mass of carbon ,

Therefore , mass of carbon is 2 grams .

Hence , this is the required solution .

If the pressure, volume, and the number of moles of a gas are known, which is needed to calculate the universal gas
constant from the ideal gas laul?
O the temperature of the gas
the molar volume of the gas
the molar mass of the gas
the partial pressure of the gas

Answers

Explanation:

temperature of the gas

Variable definition

Answers

Answer: is factor that change in a controlled experiment

Explanation:

What is the speed of an object that moves 100 meters in 5 seconds?

Answers

Answer:

speed= distance/time

= 100/5=20mph

A different student is given a 10.0g sample labeled CaBr2 that may contain an inert (non-reacting) impurity. Identify a quantity from the results of laboratory analysis that the student could use to determine whether the sample was pure.

Answers

Answer:

Melting Point.

Explanation:

In testing of a sample has impurities, we have to check the samples’s melting or boiling points or we a separation technique called chromatography.

Now, CaBr_2 which is calcium bromide is a White Hygroscopic Powder. Therefore it is a solid.

Now, a pure solid will always have a fixed melting point which means that it will melt completely at only one temperature.

However, if there are impurities, the melting point of a substance is affected in two ways:

-It's lower than than the fixed melting point

- It would melt at a range of different temperatures as opposed to a fixed temperature for the pure form.

Therefore, a quantity that can be used to determine whether the sample was pure will be melting point.

During respiration, energy is retrieved from the high-energy bonds found in certain organic molecules. Which of the following, in addition to energy, are the ultimate products of respiration?
(a) CO2, H2O
(b) CH3, H2O
(c) CH2OH, O2
(d) CO2, O2

Answers

Answer:

(A.) CO2, H2O

Explanation:

The chemical equation for respiration process is:

[tex]C_{6}H_{12} O_{6}[/tex] + [tex]6O_{2}[/tex] → [tex]6CO_{2}[/tex] + [tex]6H_{2} O[/tex] + ATP↑

Energy is released during the biochemical process in the organism's cells in form of ATP. Byproducts of the reaction are carbon dioxide and water molecules.

Let me know if you require any further assistance.

A gas has a volume of 150 cm3. Convert this volume into mL

Answers

Answer:

The answer is

150 mL

Explanation:

To convert the volume from cm³ to mL we use the conversion

1 cm³ = 1 mL

So from the question

if 1 cm³ = 1 mL

Then 150 cm³ = 150 mL

Hope this helps you

Does more data mean more reliable results or less

Answers

Answer:

more reliable. The more results the better results you get.

Explanation:

Answer:

more reliable results

Explanation:

hey there,

< More data is more reliable results as you can see even more about the experiment you are doing! If you only know one other scientist that had done the experiment and it worked for him, then that's not enough data, but if you have thousands of scientists that were able to do the experiment correctly, you will have a more reliable and correct result since now you have more data. >

Hope this helped! Feel free to ask anything else.

Which of the following is not a possible effect of increasing carbon dioxide levels in the atmosphere?a.increase in water contamination and floodsb.ocean acidificationc.cutting down forestsd.reduction of cold-related deaths Please select the best answer from the choices providedABCD

Answers

Answer:

b

Explanation:

The only option that is not an effect of increasing carbon dioxide levels in the atmosphere is cutting down forests.

An increasing level of carbon dioxide in the atmosphere causes ocean acidification due to the dissolution of the gas in the oceans. Carbon dioxide also causes global warming - an increase in the average global temperature due to the heat (from the sun) absorbing ability of the gas.

Global warming causes an increase in the level of seas and oceans as a result of the melting of glaciers and polar ice caps. The rise in sea levels causes flooding with associated loss of habitats and biodiversity.

The increase in global temperature also means that cold-related deaths will reduce.

Correct option: b

Answer:

C. cutting down forests

Explanation:

edge test

A researcher wants to refine an investigation to determine the effectiveness of an enzyme at various temperatures. Which of the following would best help the researcher determine how well the enzyme is working? Question 20 options: The researcher should measure the difference in temperature during the reaction. The researcher should measure the difference in the amount of product at the beginning of the reaction. The researcher should measure the difference in the amount of enzyme remaining after the reaction. The researcher should measure the difference in the amount of product at the end of the reaction.

Answers

Answer:

The researcher should measure the difference in the amount of product at the end of the reaction.

Explanation:

Enzymes are defined as the protiens that are responsible for increasing the rate of reaction.

With the increase in temperature, the enzyme activity increases and so the rate of reaction increases. It means at lower temperature the rate of reaction decreases and the amount of product also decreases.

So, to determine the effectiveness of an enzyme at various temperatures, the difference in the amount of the product at the end of reaction should be measured.

Hence, the correct answer is "D".

A class is 47 min how many seconds is this ?

Answers

Answer: 2820 seconds

1 minute = 60 seconds

Multiply the value times 60

47×60=2820

WILL GIVE BRAINLETS

What is the landform in the image? A.Dune B.Hill C.Plateau D.River

Answers

Answer:

the answer is c

Explanation: bc it can't be a hill or a river and a dune no way so it is c a PLATEAU

hope this helped have a great day

C. Plateau
There is no water to be a river landform and no hills to be a hillbilly platform

Craik and Lockhart (1972) proposed the idea that deeper levels of ____ results in stronger retention of memories

A. Rehearsal
B. Multitasking
C. Memory
D. Processing

Answers

Answer: D. Processing

Explanation: 100% on topic test also its in my e notes.

Craik and Lockhart has proposed theory of memory processing. Thus, option D is correct.

Craik and Lockhart proposed the theory for the processing of the level of memory. The memory in humans can be sensory memory, working memory, and long-term memory.

The long term memories have been stored in the deeper cells and the increased or strong stimulation of the processing results in the stronger retention of the memories. Thus, option D is correct.

For more information about the memory processing, refer to the link:

https://brainly.com/question/6249980

2. A golden-colored cube is handed to you. The person wants you to buy it for
$100, saying that it's a gold nugget. You pull out your old geology text and
look up gold in the mineral table, and read that its density is 19.3 g/cm3. You
measure the cube and find that it is 2 cm on each side, and has a mass of 40g.
What is its density? Is it gold? Should you buy it?

Answers

Answer:

Volume of the cube is 2*2*2 = 8cm^3.

Divide the weight (40g) over the volume (8cm^3).

Density is 5g/cm^3. Definitely not gold.

Explanation:

Yes, the given golden-colored cube is gold .The density of gold is 32 gm/cm³ and we must buy it.

What do you mean by density?

Density is a  mass of a unit volume of a material substance.

The formula for density is d = M/V, where d is density, M is mass, and V is volume.

Density is commonly expressed in units of grams per cubic centimetre.

To calculate density-

given

mass=40gm

side of cube =2cm

therefore, volume=(side)³

=8cm³

density=?

density=mass/volume

density=40/8

density=5 gm/cm³

The handed golden-colored cube is gold with its density 5gm/cm³ and  hence we must buy it.

Learn more about density ,here:

https://brainly.com/question/15164682

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120mg=______g please help

Answers

Answer:

0.12

Explanation:

Cuz you divide the mass value by 1000.

Much Smort (I look up on internet)

You have a different rock with a volume of 30cm and a mass of 60g, What is its density?

Answers

Density = mass/volume

Therefore,
Density = 60g/30cm

What occurs when a solid substance dissolves into a liquid? 1 It stays solid and sinks to the bottom of the liquid substance. 2 It breaks down and becomes part of the liquid substance. 3 It stays solid and floats on the top of the liquid substance. 4 It changes the liquid substance into a solid substance.

Answers

Explanation:

When a solid substance is dissolved in a liquid such as water, the intermolecular forces of attraction between the molecules in the solid substance are overcome and they exist as ions in the solution. Hence the answer is 2.

The correct option is 2.

When a solid substance is dissolved in a liquid such as water, the intermolecular forces of attraction between the molecules in the solid substance are overcome and they exist as ions in the solution.

What is dissolution?

Dissolution is the process in which a substance forms a solution. Dissolution testing measures the extent and rate of solution formation from a dosage form, such as a tablet, capsule, ointment, etc. The dissolution of a drug is important for its bioavailability and therapeutic effectiveness.

What is an example of a dissolution?

Stirring sugar into water is an example of dissolving. The sugar is the solute, while the water is the solvent. Dissolving salt in water is an example of the dissolution of an ionic compound.

Learn more about dissolution here https://brainly.com/question/4529762

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Joshua uses his thermometer (experimental value) and finds the boiling point of ethyl alcohol to be 75°C 75 ° C . The accepted value of ethyl alcohol is 80°C 80 ° C . What is his percent error?

Answers

75-80 = 5 = .0625 X 100 = 6.25%

80 80

Which is the larger? 27 kilograms or 270 grams? ​

Answers

Answer: 27 killograms

Explanation: 1kg = 1000 grams

27 kilograms =27000 grams

Isaac Newton believed that light was made of
O waves.
O particles.
O dust.
O gravity.

Answers

Explanation:

particles

Answer: particle

Explanation:

The light make small particle of wave

A substance melting on the stove
is an example of a chemical
change
True
b. Flase
a.

Answers

Answer:

A. True hope this helped

DNA is a double stranded molecule. If one strand is ATCGATCGATCG, what is the sequence of the other strand?

Answers

i believe it would be TAGCTAGCTAGC A<—>T C<—>G

Which chemistry is used to create energy? *
Nuclear Chemistry
Organic Chemistry
Analytical Chemistry
Biochemistry

Answers

Answer:

*biochemistry* is the answer

Answer:

No the real answer is nuclear chemistry

Explanation:

Write a brief paragraph that shows that you understand the following terms and relationships between them: atom, well I kill compound, and element.

Answers

Answer:

Atom are smaller particles of an element

compounds are mixture of two element

Element are combination of compounds

Explanation:

When an element is breakdown into smaller particles it becomes an atom

Which phrase is the best definition of science?

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Answer:

Science is the information gathered through study.

Explanation:

Answer:Observation of the physical world.

Explanation:

what is the most poisonous animal?

Answers

Answer:

That depends on what species it is

Explanation:

Like reptiles it is rattlesnakes

Spiders would be black widow

So it depends on the what species you what.

i'll GIVE BRAINLY

5. Label the following measurement by the quantity it represents: 37 s * A. Density B. Time C. Temperature D. Distance

Answers

Answer:

Hey there!

35 s represents time.

The s means "seconds."

Let me know if this helps :)

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