6. If 4 mole of the rocket fuel ammonium perchlorate, NH4C/04 (s) is
allowed to react with excess Al so all of the NH4ClO4 is consumed, how
many grams of water will be produced?
3NH_CI04 (s) + 3Al (s) Al2O3 (s) + AlCl3 (s) + 3NO (g) + 6H2O (g)

Answer:

2200 L

Explanation:

There are 22.4 L in 1 mole of neon so if you have 98.2 L, then you have 98.2 mole x (22.4 L/mole) = 2200 L of neon.

Answer:

red litmus will turn blue

blue litmus will remain blue

Explanation:

magnesium hydroxide is a base therefore turns red litmus paper blue

Answer:

The chemist would require to use 43.43 grams.

Explanation:

In order to solve this problem we need to know how much do 0.550 moles of selenium weigh. To do that we use selenium's molar mass and multiply it by the given number of moles:

The chemist would require to use 43.43 grams.

Answer:

Well 4 in H2SO4 would be called Sulfuric Acid

Explanation:

The Reason why its called by its name because the form lua is called this its because its a colorless Acid that burns it also has dissolving metals and other stuff inside of it. it has another name called oil of vitriol. hopefully this helps ^^!

Answer:

True

Explanation:

This is because, The hydroboration oxidation of an alkene which is isobutene in the presence of a catalyst will result to alcohol as the product . Therefore, the OH group will attach or link itself to the carbon which is less obstructed. Thus this reaction is in accordance to Anti-Markownikoff's rule.

So isobutene on hydroboration oxidation will produce ter isobutyl alcohol.

Answer:

λ Represents:-

-TheUnknownScientist

Answer:

I believe it would need more then one parent so therefore the wrong answer would be It requires only one parent

Explanation:

Answer:

As the oxygen is only transferred from the copper oxide to form water inside the apparatus, any gain in mass is due to hydrogen combined with the oxygen to form water. The ratio of the two masses enables the mass of oxygen combining with 1 g of hydrogen to be calculated.

Hydrogen and oxygen are the elements used as fuels in rockets as they are propellants. In each of the tests, the ratio of the mass of hydrogen to oxygen is 1:8.

Combustion has been the chemical reaction that involves reactants combining and reacting with oxygen resulting in heat and light formation. They are majorly used in propelling engines and in rocket fuels.

In a rocket engine oxygen acts as the oxidizer that reacts with hydrogen atoms to derive the heat and energy so that the engine can move and produce thrust. It uses Newton's third law to create energy and accelerate upwards.

The mixtures of fuel contain various masses that are present in a ratio of 1:8 (hydrogen: oxygen) as masses of hydrogen are 1, 2, and 5 mg, whereas oxygen is 8, 16, and 40 mg. It can be concluded that 1 part of hydrogen reacts with 8 parts of oxygen in the rocket fuel mixture.

Therefore, the rocket fuel mixtures contain a 1:8 ratio of the masses of hydrogen: oxygen that undergoes combustion reaction.

Learn more about combustion, here:

https://brainly.com/question/14335621

#SPJ2

Answer:

First, the protein may be a structural protein, contributing to the physical properties of cells or organisms. ... Second, the protein may be an enzyme that catalyzes one of the chemical reactions of the cell. Therefore, by coding for proteins, genes determine two important facets of biological structure and function.

Explanation:

i think it will help you

Answer:

the relation between Kp and Kc is

[tex] \colorbox{red}Kp=Kc{[RT]}^{∆n}[/tex]

where

∆n=no.of moles of gaseous product - no.of moles of gaseous reactant in the balanced chemical equation.

R=universal gas constant

T=temperature.

Answer:  The balanced equation for the given reaction is

[tex]2SO_{2}(g) + O_{2}(g) \rightarrow 2SO_{3}(g)[/tex].

Explanation:

A chemical equation which contains same number of atoms on both reactant and product side.

For example, [tex]SO_{2}(g) + O_{2}(g) \rightarrow SO_{3}(g)[/tex]

Here, number of atoms on reactant side are as follows.

Number of atoms on product side are as follows.

To balance this equation, multiply [tex]SO_{2}[/tex] by 2 on reactant side and multiply [tex]SO_{3}[/tex] by 2. Hence, the equation will be re-written as follows.

[tex]2SO_{2}(g) + O_{2}(g) \rightarrow 2SO_{3}(g)[/tex]

Here, number of atoms on reactant side are as follows.

Number of atoms on product side are as follows.

Now, there are same number of atoms on both reactant and product side. So, this equation is balanced.

Thus, we can conclude that the balanced equation for the given reaction is [tex]2SO_{2}(g) + O_{2}(g) \rightarrow 2SO_{3}(g)[/tex].

Viscosity is the measure of how much resistance to flowing any given fluid has; answer choice A. The formula to calculate the viscosity of a liquid is...

F = μA(u/y)

Explanation:

hope the picture above make sense:)

Answer:

Protection : Surface corrosion forms an oxide layer which further protects the inner metal form corrosion

.

Corrosion prevents corrosion : Some metals like zinc are used as sacrificial anodes to prevent corrosion to other metal.

Galvanic corrosion : The principle on which primary batteries work.

Answer:

B.Urea

Explanation:

When an amino acid is broken down, the nitrogen it contains is converted into urea by the liver which then is excreted via the kidneys.

Answer:

urea

Explanation:

when u eat proteins the body breaks them down into amino acids . Ammonia is produced from leftover amino acids and it must be removed from the body. the liver produces many chemicals (enzymes) that change ammonia into a form called ureas

Answer: yes they come in different colors.

Explanation:

Most shades of soil is mostly black,brown,red,gray,and white the color of soil and other properties including texture, structure, and consistency are used to distinguish and identify soil.

Answer:

X(O₂) = 0.323

X(N₂) = 0.677

Explanation:

We have the partial pressures of oxygen (O₂) and nitrogen (N₂):

P(O₂) = 0.20 atm

P(N₂) = 0.80 atm

In order to solve the problem, you need the solubilities of each gas in water at 298 K. We can consider 1.3 x 10⁻³ mol/(L atm) for oxygen (O₂) and 6.8 x 10⁻⁴mol/(L atm) for nitrogen (N₂) from the bibliography.

s(O₂) = 1.3 x 10⁻³ mol/(L atm)

s(N₂) = 6.8 x 10⁻⁴mol/(L atm)

So, we calculate the concentration (C) of each gas as the product of its partial pressure (P) and the solubility (s):

C(O₂) = P(O₂) x s(O₂) = 0.20 atm x 1.3 x 10⁻³ mol/(L atm) = 2.6 x 10⁻⁴mol/L

C(N₂) = P(N₂) x s(N₂) = 0.80 atm x 6.8 x 10⁻⁴mol/(L atm) = 5.44 x 10⁻⁴ mol/L

In 1 liter of water, we have the following number of moles (n):

n(O₂) = 2.6 x 10⁻⁴ mol

n(N₂) = 5.44 x 10⁻⁴ mol

Thus, the total number of moles (nt) is calculated as the sum of the number of moles of the gases in the mixture:

nt = n(O₂) + n(N₂) = 2.6 x 10⁻⁴ mol + 5.44 x 10⁻⁴ mol = 8.04 x 10⁻⁴ mol

Finally, the mole fraction of each gas is calculated as the ratio between the number of moles of each gas and the total number of moles:

X(O₂) = n(O₂)/nt = 2.6 x 10⁻⁴ mol/(8.04 x 10⁻⁴ mol) = 0.323

X(N₂) = n(N₂)/nt = 5.44 x 10⁻⁴ mol/(8.04 x 10⁻⁴ mol) = 0.677

Answer:

87.54 g of H₂O₂

Explanation:

From the question given above, the following data were obtained:

Number of molecules = 1.55×10²⁴ molecules

Mass of H₂O₂ =.?

From Avogadro's hypothesis,

6.02×10²³ molecules = 1 mole of H₂O₂

Next, we shall determine the mass of 1 mole of H₂O₂. This can be obtained as follow:

1 mole of H₂O₂ = (2×1) + (2×16)

= 2 + 32

= 34 g

Thus,

6.02×10²³ molecules = 34 g of H₂O₂

Finally, we shall determine mass of H₂O₂ that contains 1.55×10²⁴ molecules. This can be obtained as follow:

6.02×10²³ molecules = 34 g of H₂O₂

Therefore,

1.55×10²⁴ molecules

= (1.55×10²⁴ × 34)/6.02×10²³

1.55×10²⁴ molecules = 87.54 g of H₂O₂

Thus, 87.54 g of H₂O₂ contains 1.55×10²⁴ molecules.

Answer:25,06 kJ of energy must be added to a 75 g block of ice.

ΔHfusion(H₂O) = 6,01 kJ/mol.

T(H₂O) = 0°C.

m(H₂O) = 75 g.

n(H₂O) = m(H₂O) ÷ M(H₂O).

n(H₂O) = 75 g ÷ 18 g/mol.

n(H₂O) = 4,17 mol.

Q = ΔHfusion(H₂O) · n(H₂O)

Q = 6,01 kJ/mol · 4,17 mol

Q = 25,06 kJ.

Explanation:

Answer:

According to the b word, this is the answer

Explanation:

Learning a periodic table is more important as it is systematically arranged to give a lot of information about the elements and the way they relate to each other in various ways. Moreover, chemistry is all more about chemical elements. Hence a good understanding of the chemical elements will discover more about chemistry.

Answer:

Explanation:

Here we'll use our formula for specific heat, Q=mcΔT.

Q= Heat (Joules), m=mass (g), c=specific heat

ΔT= (final temperature - initial temperature)

When we add a heated piece of metal in water at a lower temperature, the metal will lose heat and the water will absorb that heat. Over time they will eventually reach an equilibrium, here we have it at 21.9 C. If you recall in thermodynamics, , when we lose heat it is exothermic and the values of exothermic reactions are negative, and the values of endothermic reactions are positive. So we can say the heat of the metal is exothermic and releasing heat into the water until they reach equilibrium, thus they are equal. Keeping in mind Q= heat,

-Q metal = Q water.

We can expand this equation to -mcΔT= mcΔT.

Our equation reflects what is happening to the metal and the water.

Before we start, it might be helpful to remember that the

c=specific heat of water= 4.186 J/g C

Let's plug in what we know and solve for c=specific heat of metal. I'll start with the left side then go to the right side.

-(23.9g)(c)(29.9-97.8) = (52.4g)(4.184)(29.9 - 21.9)

-(23.9gc)(29.9-97.8) = (52.4g)(4.184)(29.9 - 21.9)

-(23.9g)(c)(-67.9) = (52.4g)(4.184)(29.9 - 21.9)

1623c = (52.4g)(4.184)(29.9 - 21.9)

1623c = (52.4g)(4.184)(8)

1623c = 1754

c= [tex]\frac{1754}{1623}[/tex]

c= 1.08

This means it takes less heat to raise the temperature of the piece of metal ( in comparison to the water, which require more ).

Answer:

Warm front

Explanation:

A warm front forms when a warm air mass pushes into a cooler air mass, shown in the image to the right (A). Warm fronts often bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms. Warm fronts move more slowly than cold fronts because it is more difficult for the warm air to push the cold, dense air across the Earth's surface. Warm fronts often form on the east side of low-pressure systems where warmer air from the south is pushed north.

You will often see high clouds like cirrus, cirrostratus, and middle clouds like altostratus ahead of a warm front. These clouds form in the warm air that is high above the cool air. As the front passes over an area, the clouds become lower, and rain is likely. There can be thunderstorms around the warm front if the air is unstable.

On weather maps, the surface location of a warm front is represented by a solid red line with red, filled-in semicircles along it, like in the map on the right (B). The semicircles indicate the direction that the front is moving. They are on the side of the line where the front is moving. Notice on the map that temperatures at ground level are cooler in front of the front than behind it.

Answer:

We get Day and Night... It takes 24 hours for the earth to rotate on its axis

Answer:

Chemical fertilizers contain various chemicals that cause harm to soil and water.

Explanation:

Chemical fertilizers contain various chemicals such as phosphates, nitrates which can cause water pollution. Eutrophication caused by the environmental nitrogen and phosphorous that causes rich minerals and chemicals in the water.

These can cause excessive growth of the algae and phytoplankton that will cause depletion of the oxygen from the water body and organisms will die due to this.

Answer:

40

Explanation:

M = n/v  hope this helps :b

Answer:

Preparation of Salts by The Action of An Acid Upon a Metal.

Preparation of Salts by Double Decomposition.

Preparation of Salts by Neutralization.

Using A Soluble Base (alkali)

(b). Using An Insoluble Base.

Preparation of Salts by the Action of An Acid on The Trioxocarbonate (IV) of A Metal.

Explanation:

Answer:

CaCl₂

Explanation:

First we convert the given masses of elements into moles, using their respective molar masses:

Now we divide those numbers of moles by the lowest value among them:

Meaning the empirical formula for the compound is CaCl₂.

Answer:

False

Explanation: