What is the slope of the line on the graph?

Answer:

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Explanation:

Potassium chlorate which is an oxidant is mixed with sulfur, starch and glue to make the tip of matchstick. When we need to light up the fire, we rub the matchstick with the surface of matchbox which offers resistance. The friction between the tip and the surface is the main reason of fire.

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The solvent that is best for removing the impurity through hot filtration is petroleum ether. It is an organic solvent.

Petroleum ether is an organic solvent derived from petroleum, i.e., it is a well-known aliphatic hydrocarbon.

Petroleum ether is not a true ether because the word 'ether' makes reference to its extremely high level of volatility.

Moreover, hot filtration is a chemical methodology used for filtering solutions that are able to crystallize when they cool.

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Answer:

2 nitrogen atoms

Explanation:

nitrogen is an element therefore it cannot include any other atom

Answer: The shape lets you see a wide area but not blind everyone that is ahead of you though some vehicles are tall and do so anyways or are too close and the reflections make sure the light is brighter forward than to the sides so it can be more effective for seeing in the dark or even during storms.

Explanation: This is just what I know. :/

The number of KNO3 molecules in 0.750 mol of KNO3 would be 4.52 x  [tex]10^{23}[/tex] molecules

The number of molecules of a substance is defined by Avogadro's constant, such that:

1 mole = 6.022 x [tex]10^{23}[/tex] molecules

In this case, the number of mole is 0.750

Thus, the number of molecules in 0.750 moles of KNO3 can be calculated as:

        0.750 x 6.022 x [tex]10^{23}[/tex] = 4.52 x  [tex]10^{23}[/tex] molecules

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Answer:

Simplify:

3

√

8

y

3

.

Solution: Use the fact that

n

√

a

n

=

a

when n is odd.

Answer:

2

y

Explanation:

Answer:

See explanation

Explanation:

Electro negativity refers to the ability of an atom in a molecule to attract the shared electrons of a bond towards itself.

Electro negativity is a property of elements. It increases across the period and decreases down the group in the periodic table.

When two elements with differing electronegativities form a bond, the atom that has a greater electro negativity tends to pull the shared electrons of the bond towards itself. By so doing, there is greater electron density around that atom compared to the other atom. The more electronegative atom therefore acquires a partial negative charge while the other atom acquires a partial positive charge. This leads to a dipole in the molecule.

A molecule is said to be polar when it possess a dipole, that is, a positive end and a negative end. This phenomenon in turn arises when there is a significant difference in electro negativity between two atoms that compose the bond.

For instance, consider the formation of HF. Hydrogen has an electro negativity of 2.2 while fluorine has an electro negativity of 3.98. The difference in electro negativity between the both atoms is about 1.78. The molecule is polar with the negative end of the dipole at fluorine and the positive end at hydrogen.

Answer:

proton

Explanation:

neutron: A subatomic particle forming part of the nucleus of an atom. It has no charge. It is equal in mass to a proton or it weighs 1 amu.

Answer:

protons

Explanation:

approximately the same mass

Explanation:

if you could repeat a lab and make it better the first thing is to get more people inside to help you study and find evidence. that matches and make sure your guess is right before sending out false info

Answer:

Your answer is

B.Protons and Neutrons

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Answer:

A prokaryotic cell is a simple, single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle. We will shortly come to see that this is significantly different in eukaryotes. Prokaryotic DNA is found in the central part of the cell: a darkened region called the nucleoid.

Explanation:

HiH

Answer:Prokaryotes

Explanation:Prokaryotes are organisms whose cells lack a nucleus and other organelles. Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists believe have unique evolutionary lineages. Most prokaryotes are small, single-celled organisms that have a relatively simple structure.

Answer:

kinetic

Explanation:

Based on the data provided, the normal boiling point of propan-1-ol is 93.7° C

The normal boiling point of a liquid is the temperature at which the clvapor pressure of the liquid is equal to the atmospheric pressure.

The Clausius-Clapeyron Equation is used to determine the normal boiling point of liquids.

The Clausius-Clapeyron Equation is given as:

where

From the given data:

T1 = 298 K

T2 = 318 K

P1 = 2710 Pa

P2 = 9129

ΔHvap = ?

Substituting the values:

ln ln (P₁/P₂) = ΔHvap/R × (1/T₂ - 1/T₁)

ln (2710/9129) = ΔHvap/(8.314) × (1/318 - 1/298)

Then at P2 = 101325 Pa

Normal boiling point T₂ can be determined thus:

ln (2710/101325) = 47843.57/8.314 × ( 1/T₂ - 1/298)

T₂ = 366.7 K

T₂ = 93.7° C

Therefore, the normal boiling point of propan-1-ol is 93.7° C.

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Hail is most commonly formed within the cumulonimbus clouds of thunderstorms. Large updrafts of air can throw rain droplets high up into the tops of the cloud.

What is a thunderstorm?

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Answer:

Explanation:

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Answer:

38.8125

Explanation:

4.5 x 5.750 x 1.50 = 38.8125

Answer:

K2S and NaOH are soluble

Explanation:

Because thay have ions formed from elements

Answer: this is the correct answer :)

Explanation:

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Answer:

Al = 13.4%  Cr = 38.8%  O = 47.7

Aluminium Chromium Oxygen

Explanation:

im so sorry if i am wrong

Answer:

CH3OH and NADH

Explanation:

The given chemical reaction is an redox reaction in which reduction and oxidation take place.

In the process of oxidation: electrons are loss while in the process of reduction: electrons are gained.

In the given redox reaction: CH3OH + NAD --> CH2O + NADH

NAD is reduced to NADH as NADH gains one hydrogen electron while CH3OH (methanol) is oxidized to CH2O (methanal)  by losing electrons.

So, CH3OH (methanol) and NADH are the reduced forms while NAD and CH2O (methanal) are oxidized forms.

Answer:

only formed during complete combustion

Explanation:

ex:c+o2=co2 then it is a oxide

Answer:

The volume of the balloon increases as you add moles of gas to the balloon by blowing it up. If the container holding the gas is rigid rather than flexible, pressure can be substituted for volume in Avogadro's Law. Adding gas to a rigid container makes the pressure increase

Answer:

bonding electrons are when the electron have the same number and the connect,like valence electrons. Non-bonding electrons are only possible when an atom is unstable, no more than 2 electrons or if the atom is an isotope. bonding electron pairs occur in a covalent bond between two atoms. they include one electron from each atom in the covalent bond. non-bonding pairs do not take part in bonding. they are the left over electrons in the outter shell of the atom.

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Explanation:

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Plants lean towards the light because light is the energy source for plant growth. When a plant has a higher concentration of auxin on the shady side it causes that side to grow more so it can bend more towards the light. When this process happens, it's called positive phototropism.

Based on the conversion factor from gallons to cubic foot, one million gallons of water per day will cover a football by 2.3 feet.

To convert from gallons to cubic foot the following conversion factors are used:

The standard area for an American football field = 57,600 square feet

The height which one million gallons of water per day 15(Mgal/d), covers a football will then be:

Height = 134000 cubic foot / 57,600 square feet

Height = 2.3 feet.

Therefore, one million gallons of water per day will cover a football by 2.3 feet.

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Answer:

2.8 I took the test

Explanation:

there are .1667 (.17) mols in 7 grams of Sodium Fluoride (NaF)

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Answer:

m = 129,96 g

Explanation:

c = n / V

n = c * V

n = 1,23 mol/l * 0,14 l

n = 0,722 mol

n = m / M

m = n * M

m = 0,722 mol * 180 g/mol

m = 129,96 g