How would I solve this kind of equation ?3.346 x 10^6km to m

Answer:   This is an acid-base reaction (neutralization): Ca(OH) 2 is a base, CO 2 is an acid. ; White, odorless powder. [Note: Readily absorbs CO2 from the air to form calcium carbonate.]

Explanation:

Answer:

-113.2 kJ/mol

Explanation:

(-1207-285.8)-(-981.1-393.5)= -133.2

(Products)-(Reactants)= Answer

To solve such this we must know the concept of addition reaction. The reaction between alkyne and HCl gives addition product. The reaction can be written as

CH\(\equiv\)CH +HCl\(\rightarrow\)CH\(_2\)=CHCl

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

Alkyne is electron rich species. The reaction between alkyne and HCl gives addition product. The reaction can be written as

CH\(\equiv\)CH +HCl\(\rightarrow\)CH\(_2\)=CHCl

Therefore, the reaction can be written as

CH\(\equiv\)CH +HCl\(\rightarrow\)CH\(_2\)=CHCl

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4.5atm is the osmotic pressure of a 0.050 m solution of alcl3 in water that is at 0.00°c

Osmosis, or the passage of water through a semipermeable membrane from an area of lower solute concentrations to a region of higher solute concentration, is directly related to osmotic pressure.

Osmotic pressure = icRT

Here

i - the van't Hoff factor, which for non-electrolytes is equal to 1.

c stands for the solution's concentration.

R, the universal gas constant, is helpful in this context as 0.0821 atmL/molK

T, the solution's absolute temperature.

Plugging in the values we get,

Osmotic pressure = 4 × 0.050 × 0.0821

Osmotic pressure = 4.5atm

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Answer:

S + 02= S0 - 4 e- → SIV (oxidation); 2 O0 + 4 e- → 2 O-II (reduction)

C + 02= C

Cu0 + H2SO4= CuO + H2SO4 → CuSO4 + H2O

Rita spends a total of rs 78,000 on petrol in 52 weeks (1,500 x 52 = 78,000). it is important to note that this assumes Rita refills her car with petrol every week consistently for 52 weeks. I where she does not refill  fills up more frequently  total amount spent on petrol may vary.

To further explain, petrol prices may also fluctuate during the 52 weeks, which can impact the amount Rita spends on petrol. However, based on the information given in the question, we can assume a constant price of rs 1,500 per week for petrol refills

.
Your main answer is that Rita spends Rs 78,000 on petrol in 52 weeks.  Rita spends Rs 1,500 every week on petrol. There are 52 weeks in a year.To find the total amount spent in 52 weeks, multiply the weekly expense by the number of weeks: Rs 1,500 x 52 = Rs 78,000. Rita spends Rs 78,000 on petrol in 52 weeks.

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CAnswer:

Explanation:

HCN is highly soluble in water,

With rising temperatures and in extremely saline environments, its solubility declines. HCN is a colorless gas and liquid with an odor reminiscent to bitter almonds, however not everyone can smell it. HCN is created in solution when the cyanide ion interacts with water.

What is HCN?

Prussic acid, also known as hydrogen cyanide, is a chemical substance having the formula HCN and the structural formula HCN. It is a colorless, very deadly, and combustible liquid that boils at 25.6 °C (78.1 °F), only barely over room temperature. Industrial-scale HCN production makes it a highly prized precursor to a wide range of chemical compounds, from medications to polymers. Production of potassium cyanide and adiponitrile, which are used in mining and polymers, respectively, has large-scale uses. Due to its liquid nature, it is more hazardous than cyanide compounds that are solid.

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Given, Manganese dioxide (MnO2) = 28gHydrochloric acid (HCl) = 42g

To find, Theoretical yield of Cl2, We will find the limiting reagent and use its mole to find the theoretical yield of Cl2.MnO2 + 4HCl → MnCl2 + 2H2O + Cl2First we will find the limiting reagent.

The number of moles of MnO2 is, Moles of MnO2 = Mass/Molar mass = 28/86.94 = 0.322 mol The number of moles of HCl is, Moles of HCl = Mass/Molar mass = 42/36.46 = 1.151 mole will use the mole ratio of MnO2 and HCl to find the mole of Cl2. The mole of HCl required to react with 0.322 mol of MnO2 = 0.322 x 4 = 1.288 mol The number of moles of Cl2 will be, Moles of Cl2 = 0.322 x 1 / 4 = 0.0805 mol. The theoretical yield of Cl2 from the given reactants is,

Theoretical yield of Cl2 = Moles x Molar mass = 0.0805 x 70.9 = 5.71 g Chlorine gas will be produced with a theoretical yield of 5.71 g when 28 g of MnO2 and 42 g of HCl are mixed.

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Answer:

the difference between perceive and observe  is that perceive is to see, to be aware of, to understand while observe is to notice or view, especially carefully or with attention to detail.

Explanation:

Answer:

I am sorry

Explanation:

N₂ + 3H₂ →2NH\(_3\) is the balanced equation. A balanced equation is indeed a chemical reaction equation.

A balanced equation is indeed a chemical reaction equation in which the overall charge and the amount of atoms for every element inside the reaction are the same for both the products and reactants.

In plenty of other terms, the mass as well as charge across both endpoints of the reaction are balanced.

N₂ + H₂ →NH\(_3\)

Number of atom of nitrogen on reactant side is 2 while on product side it is 1.

N₂ + H₂ →2NH\(_3\)

Number of atom of hydrogen on reactant side is 2 while on product side it is 6.

N₂ + 3H₂ →2NH\(_3\)

Therefore, N₂ + 3H₂ →2NH\(_3\) is the balanced equation.

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Answer:

Blue!!

I think it is blue!

is it blue cuz i think its blue

Answer: True

Explanation:

It is true because Voltage-gated sodium channels are ion channels found in the membranes of neurons, specifically at the initial segment or axon hillock. These channels are responsible for generating and propagating action potentials, which are electrical signals that allow neurons to communicate with each other.

Answer: Iconic

Explanation:Ionic bonds are formed through the exchange of valence electrons between atoms, typically a metal and a nonmetal.

Answer:

the answer is b: it shows how temperature of a substance changes when heated

As sulfur-31 has 16 protons (equivalent to the atomic number) in total. The quantity of protons and electrons in an atom is equal. Consequently, sulfur-31 has 16 electrons in total.

As a result, sulfur-31 has (31-16) or 15 neutrons (the difference between the mass number and atomic number).

What is the atomic number?

The average mass of an element's atoms expressed in atomic mass units is known as its atomic mass (amu, also known as daltons, D).

The atomic mass of an element, measured in AMU, is equal to the mass in grams of one mole of an element.

Hence, the answer is 15neutrons.

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Answer:

Explanation:

adbc

How many pages is 5000 words? Double spaced, 5000 words is around 20 pages; single spaced about 10 pages. Now, if you're using an unconventional formatting or margins you could see different results, however, with standard word processor defaults and a 12 point Arial or Times New Roman font your output should be very similar. Examples of 5000 word count pages include college theses, dissertation research, or very comprehensive, in-depth blog posts.

Answer: 5000 words is 10 pages single spaced or 20 pages double spaced.

Pages by Word Count

Use our handy table to discover how many pages a given word count yields, single or double spaced, in Times New Roman or Arial 12 point font.

Word Count Pages (single spaced) Pages (double spaced) Font Size

250 WORDS ½ PAGE 1 PAGE 12 POINT

300 WORDS ⅔ PAGE 1⅓ PAGES 12 POINT

400 WORDS ⅘ PAGE 1⅗ PAGES 12 POINT

500 WORDS 1 PAGE 2 PAGES 12 POINT

600 WORDS 1⅓ PAGE 2⅔ PAGES 12 POINT

750 WORDS 1½ PAGES 3 PAGES 12 POINT

800 WORDS 1⅗ PAGES 3⅕ PAGES 12 POINT

1000 WORDS 2 PAGES 4 PAGES 12 POINT

1200 WORDS 2⅖ PAGES 4⅘ PAGES 12 POINT

1500 WORDS 3 PAGES 6 PAGES 12 POINT

2000 WORDS 4 PAGES 8 PAGES 12 POINT

2500 WORDS 5 PAGES 10 PAGES 12 POINT

3000 WORDS 6 PAGES 12 PAGES 12 POINT

3500 WORDS 7 PAGES 14 PAGES 12 POINT

4000 WORDS 8 PAGES 16 PAGES 12 POINT

5000 WORDS 10 PAGES 20 PAGES 12 POINT

6000 WORDS 12 PAGES 24 PAGES 12 POINT

7500 WORDS 15 PAGES 30 PAGES 12 POINT

8000 WORDS 16 PAGES 32 PAGES 12 POINT

10000 WORDS 20 PAGES 40 PAGES 12 POINT

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The following compounds has the largest lattice energy is e. MgO.

Lattice energy is the energy required to separate one mole of an ionic compound into its individual gaseous ions. Lattice energy depends on two factors: the charge of the ions and the size of the ions. Higher charges and smaller ion sizes lead to stronger electrostatic forces, resulting in higher lattice energy. Among the given options, MgO has the highest lattice energy because it contains magnesium (Mg) with a +2 charge and oxygen (O) with a -2 charge.

The charges are higher compared to the other compounds (which have charges of ±1), resulting in stronger electrostatic forces between the ions. Additionally, Mg and O are smaller in size compared to the other elements (Cs, Li, F, and I), which further increases the lattice energy of MgO. Therefore, the following compounds has the largest lattice energy is e. MgO.

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The emission spectrum of hydrogen and other elements is not continuous but consists of bright lines at discrete wavelengths that are characteristic of each element. The spectra of hydrogen, helium, and neon gases have been observed using a gas discharge tube.

A gas discharge tube is a tube containing gas at a low pressure with a high potential difference between its electrodes. When a high voltage is applied across the tube, it ionizes the gas atoms, which causes the emission of light. Each element has its unique emission spectrum, which is a series of bright lines at specific wavelengths. These wavelengths are related to the energy levels of the electrons in the atom.

When an electron in an atom is excited to a higher energy level by absorbing energy, it falls back to its original energy level and emits a photon of light.

The energy of the photon corresponds to the energy difference between the two levels. The wavelengths of the emitted photons are characteristic of each element and can be used to identify them.

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Answer:

You will more than likely fall or get pushed back a little

Explanation:

Answer

Depends on if you're good on a skateboard or not.

Explanation:

If you're good: Then you wont fall

If you're bad: Then you might fall

Can't tell if this is an actual school question or not, lol

But I hope it helps, :)

The number of moles of CO2 formed from the reaction would be 50 moles.

The reaction has to do with the combustion reaction of ethyne in oxygen to form carbon dioxide and water. From the balanced equation of the reaction below:

2C2H2(g) + 5O2(g) ==> 4CO2(g) + 2H2O(g)

The mole ratio of C2H2 to CO2 is 1:2. This means for every 1 mole of C2H2 that burns in adequate oxygen, 2 moles of CO2 will be produced.

Using this established mole ratio, the number of moles of CO2 that will be formed from 25.0 moles of C2H2 would be:

1 mole C2H2 = 2 moles CO2

25 moles C2H2 = 25x2/1

                          = 50 moles CO2

In other words, the number of moles of CO2 that will be formed from 25.0 moles of C2H2 is 50 moles.

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how many moles of CO2 are formed from 25.0 moles C2H2

2C2H2(g) + 5O2(g) ==> 4CO2(g) + 2H2O(g)

Based on the graph, the reaction with a linear decrease in concentration is the first-order reaction, while the reaction with a curved decrease is the second-order reaction.

In a first-order reaction, the concentration of the reactant decreases exponentially with time, resulting in a straight line on a graph of ln(concentration) versus time. Therefore, to make the plot of the first-order reaction linear, we need to plot ln(concentration) on the y-axis.

In a second-order reaction, the concentration of the reactant decreases at a rate proportional to the square of its concentration, resulting in a curved line on a graph of concentration versus time. To make the plot of the second-order reaction linear, we need to plot 1/concentration on the y-axis.

By transforming the y-axis to ln(concentration) for the first-order reaction and 1/concentration for the second-order reaction, we can observe linear relationships between the transformed y-axis and time for both reactions.

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Answer:

The balanced equation is: 2AgNO₃ + MgCl₂ ------> 2AgCl + Mg(NO₃)₂

Explanation:

The law of conservation of mass states that in a normal chemical reaction, matter is neither created nor destroyed.

According to the law of conservation of mass, therefore, when a chemical reaction occurs, the mass of the products should be equal to the mass of the reactants. This implies that the amount of the atoms in each element in the chemical reaction remains the same before and after the reaction. A balanced chemical equation therefore,  is one that shows that the number of the atoms involved in the reactants side is equal to the number of atoms in the products side.

Considering the given reaction:

2AgNO₃ + MgCl₂ ------> 2AgCl + Mg(NO₃)₂

The amount in moles of each atom in the reaction is as follows;

Ag = 2 moles of atom on each side

N = 2 moles of atoms on each side

O = 6 moles of atoms on each side

Mg = 1 mole of atoms on each side

Cl = 2 moles of atoms on each side

Therefore, the above chemical equation is balanced.

Answer:

The equation is already balanced.

Explanation:

The most electronegative atom is Flourine and the least is Hydrogen

The attached image indicates how the highly electronegative Fluorine atom takes away most of the electron density (red-to-blue colored cloud) from a hydrogen–fluoride covalent bond.

An electronegative atom is an atom that has a tendency to attract electrons towards itself when it is part of a chemical bond. The most common example is the oxygen atom. The ability of an atom to attract electrons is known as its electronegativity.

The higher the electronegativity of an atom, the more it will pull electrons towards itself. The electronegativity of an atom is determined by its atomic number and the number of electrons in its outermost shell.

Therefore, the correct answer is as given above

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Answer:

12 - x = 20 - 5x

Add 5x on both sides,

12 - x + 5x = 20 - 5x

12 + 4x = 20

Subtract 12 on both sides,

12 - 12 + 4x = 20 - 12

4x = 8

Divide 4 on both sides,

4x / 4 = 8 / 4

x = 2

Hence proved.

Water that is salty and chilly sinks to the ocean's bottom.Water is transported around the world by the huge ocean conveyor.Warm water is less thick and stays on the surface of the ocean whereas cold, salty water sinks to the bottom.Warm water is less dense than cold water.

As you just observed, as sea ice forms, salt is driven from the ice crystals, making the water around them saltier.Since the water in this saltier environment is denser, it sinks.The sinking water is replaced by surface water, which finally gets cold and salt enough to sink itself.

2. Sea Ice Aids in Preventing Global Warming.According to Tilling, sea ice separates the ocean from of the atmosphere like a "blanket."Sea ice blocks sunlight while also retaining heat already present in the ocean, preventing it from warming climate air above.

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1.00 mol of water contains the most hydrogen atoms.

1 mol of water(H2O) contains 2 mol of hydrogen atoms

molar mass of hydrogen = 1.01 g/mol,

so 1 mol of water contains 21.01 = 2.02 g of hydrogen.

1 mol of Ammonia (NH3) contains 1 mol of hydrogen atoms

molar mass of hydrogen = 1.01 g/mol,

so 1 mol of ammonia contains 11.01 = 1.01 g of hydrogen.

hydrogen in 10.0 g of water  = 4.83 ×\(10^(22)\) hydrogen atoms

hydrogen in  15.00 g of ammonia = 1.48  ×\(10^(23)\) hydrogen atoms.

1 mol of water contains the most hydrogen atoms. This is because water, chemically represented as H2O, contains two hydrogen atoms for every oxygen atom. While 1 mol of ammonia(NH3) contains 1 mol of hydrogen atoms, 1 mol of water contains 2 mol of hydrogen atoms.

Therefore, 1 mol of water contains more hydrogen atoms than 1 mol of ammonia, and that's why option 3 -1 mol of water contains the most hydrogen atoms out of the options provided.

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using PV=mRT/Mr

V=(4.9×8.31×(273+20))/(24.3×101.5×10^3)

=4.84×10^-3 m^3

=4.84×10^6 mm^3