4. Some aliens are planning to destroy Earth's atmosphere. Write two things that would happen, if Earth's atmosphere vanished.​

The reaction order and specific reaction rate constant can be determined by performing the kinetics experiment on irreversible polymerization A. Kinetic experiments can be used to investigate the rate and mechanism of chemical reactions. Chemical kinetics is the study of chemical reactions' speed and pathway.

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Answer:

A change is called irreversible if it cannot be changed back again. For example you cannot change a cake back into its ingredients again. Irreversible changes are permanent.

Explanation:

Hope this helps!! :))

Answer:

NH₄ClO₃ and NaCl

Explanation:

This appears to be a double-displacement reaction. In these reactions, the cation of one compound is swapped with the cation of another.

So, NH₄⁺ from NH₄Cl is swapped with Na⁺ from NaClO₃. It is important that the resulting ionic compound has an overall charge of 0. In this case, the charges perfectly balance, so there only needs to be one atom of each ion in the compounds.

1.) NH₄ClO₃

-----> NH₄⁺ and ClO₃⁻

-----> +1 + (-1) = 0

2.) NaCl

-----> Na⁺ and Cl⁻

-----> +1 + (-1) = 0

The chemical equation:

NH₄Cl + NaClO₃ -----> NH₄ClO₃ + NaCl

When the reaction of  Grignard reagent reacted with methanol will yield a tertiary alcohol. Therefore, Option C tertiary alcohol is correct.

Contains a carbon-metal link, Grignard reagents are chemicals used in catalysis. They generally result from the anhydrous reaction of magnesium metal with an alkyl or aryl halide. Because of their high reactivity, Grignard reagents frequently act as nucleophiles in organic reactions.

An alkyl group from a Grignard reagent binds to the oxygen atom of methanol (CH3OH) when it interacts with the methanol, breaking the carbon-metal connection. A precursor alkoxide is created as a result. The equivalent alcohol is then produced by protonating the intermediate alkoxide.

The reaction of a Grignard reagent with methanol leads to the formation of a tertiary alcohol.

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Answer:

P₂ = 112.17 KPa

Explanation:

Given data:

Initial pressure = 116 KPa

Initial temperature = 303 K

Final temperature = 293 L

Final pressure = ?

Volume=  constant

Solution:

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

116 KPa / 303 K = P₂/293 K

P₂ = 116 KPa × 293 K  / 303 K

P₂ = 33988 KPa. K / 303 K

P₂ = 112.17 KPa

Answer:

odorless, crystalline, white solid with a sour taste.

Explanation:

The temperature increase from 20 °C to 46 °C indicates that the reaction between zinc and copper sulfate solution is exothermic, with heat being released into the surroundings.

In the given reaction between zinc and copper sulfate solution, the temperature change can provide insights into the type of heat change occurring during the reaction. Based on the provided information, the initial temperature of the copper sulfate solution was 20 °C, and the final temperature of the mixture after the reaction was 46 °C.

The temperature increase observed in this reaction indicates an exothermic heat change. An exothermic reaction releases heat energy into the surroundings, resulting in a temperature rise. In this case, the reaction between zinc and copper sulfate solution is exothermic because the final temperature is higher than the initial temperature.

During the reaction, zinc displaces copper from copper sulfate to form zinc sulfate and copper metal. This displacement reaction is known as a single displacement or redox reaction. Zinc is more reactive than copper and therefore replaces copper in the compound.

The formation of new chemical bonds during the reaction releases energy in the form of heat. This energy is transferred to the surroundings, leading to an increase in temperature. The heat released is greater than the heat absorbed, resulting in a net increase in temperature.

The exothermic nature of this reaction can be explained by the difference in bond energies between the reactants and products. The breaking of bonds in the reactants requires energy input, while the formation of new bonds in the products releases energy.

In this case, the energy released during the formation of zinc sulfate and copper metal is greater than the energy required to break the bonds in copper sulfate and zinc.

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Hydrogen bonding, which is unquestionably what we have, will occur from the intermolecular force between the molecules of H2O and CH3OH. Atoms trade or exchange valence electrons to create bonds.

Trust and self-esteem are developed in children and adolescents through strong emotional ties. After that, they can leave the family and establish wholesome friendships and other types of social ties. Healthy relationships consequently lower a child's chances of emotional discomfort or antisocial behaviour.

The government of a country issues government bonds, a sort of fixed-interest bond. These bonds are thought of as low-risk investments. Examples of different kinds of government bonds include T - bills, Municipality Bond, Zero-Coupon Bonds, and others.

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Answer:

The final temperature of the copper would be 311.3°C.

I hope this helps you

Answer:

The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same.

Explanation:

Answer:

See below

Explanation:

PV = n RT        R = .082057  L - Atm / (K-Mole)

.97 V = .118 (.082057)(305)    

    V = 3.04 liters

Will not change for argon.....will be the same for all ideal gases

Answer:

Chemistry is used almost everywhere you go. from the car you use to get to work (gasoline burning) to the nuclear reactors that power many homes ( uranium becoming unstable to product electricity.

Answer:

B.) 2x

Explanation:

Hello,

In this case, we can apply the following rule of three, knowing that 0.1 dm³ equals x and 0.2 dm³ is the unknown:

\(0.1dm^3\longrightarrow x\\0.2dm^3 \longrightarrow ?\)

Thus, solving for the unknown we find:

\(?=\frac{0.2dm^3*x}{0.1dm^3} \\\\?=2*x\)

Therefore, the answer is B.) 2x.

Best regards.

Answer:

Oxygen. Oxygen is the most abundant element contained within living organisms, composing about 65% of the human body.

Explanation:

Answer:

the limiting reactant is HBr

Explanation:

if you tried to make the products using 12 mol Al and 12 mol HBr, the HBr will run out first

Answer:

1.05 x 10²²atoms

Explanation:

Given parameters:

Mass of  Pb  = 3.6g

Unknown:

Number of atoms in Pb = ?

Solution:

Some very essential constants;

       1 mole of a substance contains 6.02 x 10²³atoms/mole

  Molar mass of Pb  = 207.2g/mol

First, we convert the mass to number of moles then to number of atoms.

   Number of moles  = \(\frac{mass(g)}{number of moles(g/mol)}\)  

        3.6g x \(\frac{1}{207.2}\)  x \(\frac{g}{g/mol}\) x 6.02 x 10²³  x \(\frac{atoms}{mole}\)   = 1.05 x 10²²atoms

a) The rate of the reaction in terms of the change in concentration of each of the reactants and products will be: -d[HBr]/dt or -d[Br2]/dt or d[H2]/dt

b) The average rate of the reaction will be 0.00352 M/s

c) = 0.0352 M amount of Br2(in moles) was formed during the first 15.0s of the reaciton.

a) The rate of a reaction can be expressed as the change in concentration of a reactant or product over time.

For this reaction, the rate could be expressed as:

-d[HBr]/dt or -d[Br2]/dt or d[H2]/dt

b) To calculate the average rate of the reaction, we can use the formula:

average rate = (change in concentration of HBr) / (change in time)

where the change in time is 25.0 s and the change in concentration of HBr is 0.600 M - 0.512 M = 0.088 M.

average rate = 0.088 M / 25.0 s

= 0.00352 M/s

c) To calculate the amount of Br2 formed during the first 15.0s of the reaction, we need to multiply the average rate of the reaction by the change in time:

amount of Br2 = average rate * change in time

amount of Br2 = 0.00352 M/s * 15.0 s = 0.0528 moles

Since the volume of the reaction vessel is 1.50 L, we can find the concentration of Br2:

[Br2] = amount of Br2 / volume

[Br2] = 0.0528 moles / 1.50 L

= 0.0352 M

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With a steady volume and a temperature rise of 45C, the resultant pressure is 9.06 atm.

Force per unit area is referred to as pressure. The force created when gas molecules in a container collide with the walls is known as pressure in the context of gases. The quantity of gas molecules, their average speed, which is correlated with temperature, and the capacity of the container all affect how much pressure the gas experiences.

We may resolve this issue using the ideal gas law, which stipulates:

PV = nRT

where, P stands for the gas pressure, V represents the gas's volume, the number of moles of the gas is n.

The ideal gas constant, or R, is 0.0821 L atm/mol K.

To find the final pressure, P2, we may rearrange this equation as follows:

P1/T1 = P2/T2

where: the first pressure, P1, Initial temperature is T1. The last temperature, T2, is.

Let's enter the above numbers and calculate P2:

P1 = 8.5 atm

T1 = 25 + 273 = 298 K

T2 = 45 + 273 = 318 K

P2 = P1 * T2 / T1

      = 8.5 atm * 318 K / 298 K

       = 9.06 atm.

With a steady volume and a temperature rise of 45C, the resultant pressure is 9.06 atm.

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Answer:

YALL ITS A AND C

Explanation:

The potential energy is converted to kinetic energy as the ball rolls down the hill.

The energy that is conserved or stored in a substance or object is known as potential energy. The position, organization, or state of the object or substance determines the amount of stored energy.

Potential energy mostly comes in two forms: The potential energy of gravity and Potential elastic energy.

The energy an object has as a result of motion is known as kinetic energy. A force must be applied to an object to accelerate it. We must put in effort to apply force.

Therefore, The potential energy is converted to kinetic energy as the ball rolls down the hill.

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250 L of 5.0% w/v glucose solution can be prepared using 125 g of glucose.

w/v = [ mass of solute (g) / volume of solution (mL) ] × 100

5.0 % w/v = [ 125 g / volume of solution (mL) ] × 100

volume of solution (mL) = [ 125 g / 5.0 % w/v ] x 100

volume of solution (mL) = [ 125 g / (5.0 / 100) ] x 100

volume of solution (mL) = [ 125 g / 0.05 ] x 100

There are various kind of elements that are present in periodic table. Elements that are metals are kept on left side of periodic table and elements which are non metals are kept on right side of periodic table.

Periodic table is a table in which we find elements with properties like metals, non metals and metalloids element arranges in increasing atomic number.

The first 20 elements of periodic table are Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Sodium, Magnesium, Aluminum, Silicon, Phosphorus, Sulfur, Chlorine, Argon, Potassium and Calcium. Out of these Lithium, Beryllium, Sodium, Magnesium. Potassium and Calcium are metals so they are kept on the left side of the periodic table while others are non metals so they are kept on right side of periodic table.

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The molarity of the solution decreases on dilution by adding distilled water. The molarity of the solution of 17.51 ml ,  6 M HCl when added to 6.36 ml is 4.4 M.

Molarity is a common term used to express the concentration of a solution. The molarity of a solution is the ratio of the number of moles of solute to the volume solution in liter.

If a solution of volume V1 ml with M1 molarity is diluted to V2 ml of M2 molarity, then, the relation between the two concentrations is written as:

M1 V1 = M2 V2.

given, M1 = 6 M

V1 = 17.51

the volume after the addition of 6.36 ml water, v2 = 17.51 + 6.36 =  23.78 ml

then M2 = M1 V1/V2

M2 = 6 M × 17.51 ml/ 23.78 ml

      = 4.4 M.

Therefore, the molarity of the solution after dilution is 4.4 M.

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Answer:

compound

Explanation:

Answer:

40 if you want if simple

Explanation:

Molar mass is the amount grams that one mole weighs.  You need to find the molar mass of NaCl which is the same as the amu on the periodic table in grams. So it is 22.99(Na) + 35.45(Cl) = 58.44

You also know that for every mole of NaCl you have 1 mole of Na because every molecule of NaCl has 1 atom of Na.

Finally, using the periodic table, again, you see that the molar mass of Na is 22.99.

Then using stoichiometry, you can find the grams of sodium.

100(g NaCl) * 1 mol (NaCl)/58.44 g (NaCl) * 1 mol (Na)/ 1 mol (NaCl) * 22.99 (g of Na)/ 1 mol (Na)

which equals 39.339435 g of Na.

If you need to maintain significant figures the answer will be 40.

Answer:

you will add then subtract to get the answer

A rainbow is produced through a proces that includes refraction, reflection, and dispersion of  sunlight.

A rainbow is formed when sulinght is refracted and reflected by rain drops in the atmospher.

The sunlight is split into its component colors, which is why rainbows appear as having an array of colors. This is due to each color being bent by a different amount during refraction.

The colors of a rainbow are always in the same order, with red on the outside and violet on the inside.

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