PLEASE HELP ME :( It’s urgent!!!!!

Answer:

0.12

Explanation:

Cuz you divide the mass value by 1000.

Much Smort (I look up on internet)

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 .

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

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

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.

Explanation:

temperature of the gas

Answer:

The ratio of the particles that make it up is fixed

Explanation:

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".

Answer:

*biochemistry* is the answer

Answer:

No the real answer is nuclear chemistry

Explanation:

Answer:

Molecules start out unevenly distributed and end up evenly distributed.

Explanation:

Diffusion is the process by which molecules of a substance move from a region of higher concentration to a region of lower concentration until equilibrium is attained.

Molecules start out unevenly distributed and end up evenly distributed in a particular medium. Diffusion occurs due to the particulate nature of matter. When the particles that make up a substance are concentrated at a point, the collide more often with one another causing each molecule to spread out in order to occupy all the available space.

Diffusion occurs in gases, liquids and solids but occurs fastest in gases. Diffusion can be observed for example, in the spread of the smell of a dead rat from one point in a room to every part of the room.

Answer:

B

Explanation:

:D

Answer: 27 killograms

Explanation: 1kg = 1000 grams

27 kilograms =27000 grams

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.

Answer:

Hey there!

35 s represents time.

The s means "seconds."

Let me know if this helps :)

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.

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.

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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Answer: is factor that change in a controlled experiment

Explanation:

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.

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

80 80

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.

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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Answer:

speed= distance/time

= 100/5=20mph

Answer:

Science is the information gathered through study.

Explanation:

Answer:Observation of the physical world.

Explanation:

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.

Answer:

A. True hope this helped

Answer:

homogeneous mixture

Explanation:

Answer: 2820 seconds

1 minute = 60 seconds

Multiply the value times 60

47×60=2820

Answer:

The answer is

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

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