Gregory is doing his experiment for the science
fair. The above table shows the data he collected.
Based on the table, what is the best description of
what Gregory wanted to know?

A) Which brand
and amount of fertilizer will work best?

B) Which
brand of fertilizer (A,B or C) works the best?

C)
Which amount of fertilizer will show the most
growth?

D) What level of fertilizer is the most that
can be given before growth decline?

Quantitatively, chemical reactions are determined by the reactant as well as product molecules.

A chemical reaction will be preferred as a process that results in the chemical change of one group of chemical substances into another set of chemical compounds.

A reactant would be a material that's also present when a chemical reaction begins. Products are still the substance to the right of the arrow. A product is a material that remains after a chemical reaction has been completed.

Quantitatively, chemical reactions are determined by the reactant as well as product molecules.

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The color of the indicator will correspond to the pH values of either acidic or basic substances.

pH values are values which are obtained from taking the negative logarithm to base ten of the hydrogen ions concentration of a substance.

pH values of acidic substances are less than 7 while the pH of basic or alkaline substances are greater than 7.

An indicator is an organic dye which changes colour according to the pH of a substance.

Examples of indicators are methyl orange and phenolphthalein.

Therefore, the color of the indicator will correspond to pglh values of either acidic or basic substances.

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303K − 273.15 = 29.85°C

45K − 273.15 = -228.1°C

Answer:

33,666

Explanation:

is the dictionary definition of a word.

is the feeling or idea associated with a word.

Balanced one

Moles of Pentyne

Moles of H_2O

1mol releases 241.8KJ

2mol releases 241.8(2)=483.6KJ

What type of rock is the wave made of?

Answer: The Wave is a natural formation of ~sandstone rocks~

The functional group found in methanol is as follows: R single bond OH (R-OH). Details about methanol can be found below.

A functional group is a specific grouping of elements that is specific to a class of compounds, and determines the chemical properties of that class.

Each hydrocarbon or organic compound have a specific functional group characteristics of its group.

Alcohol (OH) is the functional group of certain organic compounds like methanol, ethanol etc. Therefore, the functional group found in methanol is as follows: R single bond OH (R-OH).

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Answer:

R single bond O single bond R.

Single bond N H Subscript 2

Single bond O H.

R single bond X.

Explanation:

The answer is Ethene.

Produced by heating natural gas.

Answer:

Elements on the left side of a row always have higher atomic mass than elements on the right side of that row.

Explanation:

the answer I have above should be correct because it’s false so it’s the right answer.

Answer:

2C8H18+25O2→16CO2+18H2O.



Answer:

Cu2SO4 is referred to as copper sulphate

The replacing of house lights with lower-watt bulbs represents energy conservation not energy sustainability because energy conservation is the efficient use of energy without wasting it.

Energy conservations refer to the practice of using less energy for doing various activities. Turning off the light when you leave the room is the example of energy conservation.

So we can conclude that replacing of house lights with lower-watt bulbs represents energy conservation not energy sustainability because energy conservation is the efficient use of energy without wasting it.

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Answer:

diamond, graphite (types of carbon) and silicon dioxide (silica).

Explanation:

Substances with giant covalent structures are solids with very high melting points. All the atoms are linked by strong covalent bonds, which must be broken to melt the substance.

Subatomic particle is the smallest particle than the atom

Explanation :-

An atom consist of three subatomic particle

They are electron , proton and neutron .

Proton ( p ) it is a subatomic particle with positive chargewhich is equal to electron charge and a mass of

[tex]1.67262 \times {10}^{ - 27} kg [/tex]

Electron ( e ) It is the subatomic particle with negative charge and a mass equal to

[tex]9.109 × {10}^{ - 31}kg [/tex]

Neutrons ( n ) - It is neutral subatomic particle which is the constituent of every atomic nucleus except hydrogen . Neutrons have no electric charge and a rest mass equal to

[tex]1.67493 \times {10}^{ - 27} kg[/tex]

slightly greater than that of electron

Explanation:

INTRODUCTION:

There are 3 main subatomic particles, they are:

The existence of the sub-atomic particles was proved by the fact that an atom is electrically neutral but it can be made to gain a positive or a negative charge. This means that an atom must contain tiny particles, each carrying either a positive or a negative charge.

These opposing charges balance each other under ordinary conditions to make an atom electrically neutral.

ELECTRONS:

Electrons were discovered in 1897 by J.J. THOMSON when he was studying cathode rays.An electron is denoted by:

[tex] \boxed{ _ {- 1 }e {}^{0} }[/tex]

Where,

Properties of electrons:

UNIT CHARGE OF Electrons:

NEUTRONS:

In 1932, James chadwick discovered neutrons & it had no charge. Its denoted as [tex] _{0} n ^1[/tex]

PROPERTIES OF NEUTRONS:

An atom of hydrogen contains only 1 proton and one electron but no neutron.

UNIT CHARGE OF IT:

PROTONS:

An atom is electrically neutral Therefor the presence of the negatively charger electrons in an atom suggests that it must contain positively charged particles a well, otherwise an atom would not b electrically neutral.It is discovered by E. GOLDSTEIN.

It's denoted as [tex] _{+1} p ^1[/tex]

where 1 represents 1 a.m.u. and +1 represents 1 unit positive charge.

PROPERTIES:

>>>All elements contains electrons & protons.

Since an atom is electrically neutral, the number of electrons in an atom is equal to the mumber of protons in that atom. However, no two elements contain the same number of protons in their respective nuclei.

UNIT Charge:

[All units I provided are a.m.u. .]

[tex] \rule{225pt}{2pt}[/tex]

Hope this helps :)

The characteristics of a chemical reaction are:

The lower energy of reactants → Transition state → High energy of products.

A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products.

The characteristics of a chemical reaction are :

Lower energy of reactants

                 ↓

Transition state

                 ↓

High energy of products

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Answer:

Hydrogen bonding is a special type of dipole-dipole interaction that occurs between the lone pair of a highly electronegative atom (typically N, O, or F) and the hydrogen atom in a N–H, O–H, or F–H bond.

Answer:

The one that is in dark green is (New Hampshire)

if that's not what tell me i will fix it

Hope This Helped  

Dish of Cabbage, carrot, pea, cauliflower and brinjal are the meals we could enjoy that contain only plant products.

Cabbage, carrot, pea, cauliflower and brinjal are the five different plants based meals. In these meals, vegetables are used which are the parts of plant. We know that vegetables are very healthy and nutritive which can be get from plants.

So we can conclude that dish of Cabbage, carrot, pea, cauliflower and brinjal are the meals we could enjoy that contain only plant products.

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Answer: 19 grams

Explanation:

percent by mass = (mass of part)/(mass of whole) * 100

this means that in this question, 12 = x/160 * 100, where x is the amount of NaCl.

this means 12/100 = x/160, and thus x = (160)(12/100)=19.2 grams

The closest option is B.

Answer:

Second Option: 19 grams

Explanation:

Total solution weight: 160 grams

percent of NaCl in the solution: 12%

You take these two numbers and multiply them with 12 being over 100:

160 * [tex]\frac{12}{100}[/tex] = 19.2 grams

and then just round to the nearest whole number: 19 grams

Answer:

The solvent would wash away the dye.

Explanation:

The solution will m ove to the top and you would not be able to calculate the Rf value that is com pared to the distance that a com ponent traveled in the stationary phase reached by the solvent.

Answer:

The solvent would wash away the dye.

Explanation:

The solution will m ove to the top and you would not be able to calculate the Rf value that is com pared to the distance that a com ponent traveled in the stationary phase reached by the solvent.

Answer:

carbon dioxide + water+ energy+ soot+carbon monoxide

Answer:

2H2+O2=2H20

Explanation: Since there are 2 Oxygen in the reactants then there must be 2 Oxygen in the products, meaning there is a coefficient of 2 in front of H20 and that makes there be 4 Hydrogen, so adjust the reactants (2 H2)