Example: The products of a chemical reaction are Sodium Hydroxide and Acetone.
Without knowing the reactants, how do you know that this is not a synthesis reaction?

Explanation:

As the halogens become less reactive down the group, their oxidising ability decreases. Remember that oxidation is a gain of electrons. Halogens become less oxidising as you move down the group as it is more difficult to gain an electron.

A detailed description of the reaction steps, along with information on the relative order and cost of forming and breaking bonds, is called a reaction mechanism.

Information is an important stimulus for the recipient in some contexts. Records are entered and stored on a computer but are commonly referred to as statistics. The definition of statistics is news or know-how acquired or provided. A data instance is what is provided to a person requesting information about something. Statistics is a generalized concept that refers to something that has the power to speak. At its most essential level, facts represent the translation of the perceptible. Proper record keeping is believed to improve decision-making, complement productivity, and give employers a competitive advantage that knows more than their competitors. Use facts.

People use the information to find meaning in a variety of situations. Sometimes they use notes as a tool to do real things (eg, to gain abilities or achieve goals). In other cases, statistics are used for cognitive purposes (eg generating ideas).

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The purpose of the fourth pot that contained no fertilizer is to observe the actual growth of the plant without any fertilizers.

Fertilizers paintings by means of imparting vital vitamins to developing plants, bushes, and veg, as a form of multi-nutrition or meal substitute for the plant international. Many fertilizers additionally improve the way the soil works by helping it to maintain water higher and allowing air to drift freely, which is right for roots.

Fertilizers increase their growth via the application of fertilizer remedies. development in plant boom was notably discovered by means of the application of each natural and inorganic source of mineral vitamins.

The more fertilizer a crop gets, the faster it grows. We understand if a crop is supplied with too little fertilizer, plant increase response is negative; however if fertilizer charges are immoderate, plant increase slows and there is a potential for root harm or demise from high fertilizer salts.

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Heat causes a liquid's particles to gain more energy, which causes them to move more quickly and expand the liquid.

The heat energy used to boil the water is transmitted to the water molecules, which cause them to start moving more swiftly. The energy of the molecules eventually becomes too great for them to remain bound together as a liquid. This causes them to condense into gaseous water vapor molecules, which rise to the surface as bubbles as well as move through the air.

Thermal energy is the term used to describe the energy present in a system that determines its temperature. The movement of thermal energy is heat.

The particles in a liquid gain more energy as it is heated and travel more quickly, causing the liquid to expand. As the liquid becomes warmer, the surface's most energetic particles vaporize and flee.

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Answer:

Cellular respiration is the process where cells break down glucose and then they convert it into energy. Cellular respiration is important because without cellular respiration there would not be any energy and without energy there would not be any food.

Considering the definition of empirical formula, the empirical formula of the potassium salt is KNO₃.

The empirical formula is the simplest expression to represent a chemical compound, which indicates the elements that are present and the minimum proportion in whole numbers that exist between its atoms, that is, the subscripts of chemical formulas are reduced to the most integers. small as possible.

In this case, you know:

Assuming a 100 grams sample, the percentages match the grams in the sample. So you have:

Then it is possible to calculate the number of moles of each atom in the molecule, taking into account the corresponding molar mass:

The empirical formula must be expressed using whole number relationships, for this the numbers of moles are divided by the smallest result of those obtained. In this case:

Therefore the K: N: O mole ratio is 1: 1: 3

Finally, the empirical formula is K₁N₁O₃= KNO₃.

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Answer:

6 atoms

Explanation:

Br2 + 2KCl = 2KBr + Cl2

2KBr = 4 atoms

Cl2 = 2 atoms

total 6 atoms

Chemical reaction between bromine and potassium chloride is  2 KCl +Br₂[tex]\rightarrow[/tex] 2 KBr +Cl₂. There are 6 atoms in the product .

Chemical reactions are defined as reactions  which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical reaction.

There are several characteristics of chemical reactions like change in color, change in state , change in odor and change in composition . During chemical reaction there is also formation of precipitate an insoluble mass of substance or even evolution of gases.

There are four types of chemical reactions:

1) combination reaction

2)decomposition reaction

3) single displacement reaction

4) double displacement reaction

During chemical reactions atoms are rearranged and reactions are accompanied by an energy change as new substances are formed.

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The correct answer is option C: natural gas

The ingredient which is important in making plastics is natural gas.

Plastics are the refined form of natural gas, plant liquids, and crude oils.

Plastics can be manufactured in two ways: synthetic and biobased.

Synthetic plastics come from raw materials including natural gas, crude oil, and coal.

On the contrary, biobased plastics are manufactured from renewable materials such as starch, vegetable fats, oils, and carbohydrates.

However, the most common method of plastic manufacturing is the transformation of raw materials into refined propane and ethane.

In the next step, ethane and propane undergo cracking which transforms them into ethylene and propylene which are the building blocks of long chains of polymers.

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Answer:it's C

Explanation:

I just did it on Edge you're welcome Happy early Halloween you're beautiful and have a nice day. :)

1) Mass of aluminum powder is 2.7 g.

2) Mass of magnesium sulfate is 19.9 g.

3) Mass of calcium oxide is 14g.

4) Mass of lead 412.2 g.

1) In the thermite reaction :

2Al     +     Fe₂O₃   ----->  Al₂O₃   +   2Fe

mass of  Fe₂O₃ = 8.0 g

molar mass of   Fe₂O₃ = 159.6 g/mol

number of moles = mass / molar mass

                             = 8.0 g / 159.6 g/mol

                             = 0.050 moles

1 mole of  Fe₂O₃ react with 2 mole of Al ,

0.050  Fe₂O₃ moles react with 2 × 0.050 = 0.1moles of Al

number of moles of Al = mass / molar mass

mass of Al = no. of moles × molar mass

                 = 0.1 mol × 27 g/mol

                 = 2.7 g

Thus, the mass of aluminum powder is needed to react with 8.0 g of iron (III) oxide is 2.7 g

2) the reaction is :

MgCO₃ +   H₂SO₄  ----->   MgSO₄   +   CO₂    +   H₂O

mass of MgCO₃ = 14.0 g

no. of moles of MgCO₃ = mass / molar mass

                                      = 14 g / 84.3 g/mol

                                      = 0.166 moles

1 mole of MgCO₃  produced 1 mole of MgSO₄,

0.166 mole of MgCO₃  produced 0.166 mole of MgSO₄

mass of MgSO₄ = 120.3 g/mol

no. of moles of MgSO₄ = mass / molar mass

mass of MgSO₄ = no. of moles × molar mass

                          = 0.166 mol × 120.3 g/mol

                          = 19.9 g

Thus, mass of magnesium sulfate crystals can be made from14.0g of magnesium carbonate and an excess of dilute sulfuric acid is 19.9 g

3) the reaction is :

CaCO₃   ----->   CaO + CO₂

mass of calcium carbonate = 25 g

molar mass of CaCO₃ = 100 g/mol

no. of moles of = mass / molar mass

                         = 25 / 100

                         = 0.25 mol

0.25 moles of CaCO₃ produced 0.25 moles of CaO

molar mass of  CaO = 56 g/mol

mass of CaO = no. of moles × molar mass

                      = 0.25mol × 56 g/mol

                      = 14 g

the mass of CaO produced 14 g.

4) PbO  +   H  ----->    Pb   + H₂O

mass of PbO = 446g

no. of moles = mass / molar mass

                     = 446 g / 223.3 g/mol

                     = 1.99 mols

1.99 moles of PbO produced 1.99 moles of Pb

molar mass of Pb = 207.2 g/mol

mass of Pb = no. of moles × molar mass

                   = 1.99 mol × 207.2 g/mol

                   = 412.2 g

Thus, Lead (ii) oxide PbO, reacts with hydrogen to for lead and steam. calculate the mass of lead in formed when 446g of lead (ii) oxide is 412.2g.

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the answer is no

Explanation:

the soaked potato is already immersed in water and is likely to get spoilt few days before the exposed potato.because a liquid medium has already been used. while the exposed potato still possesses its same properties as before

The new concentration of hydroxide ions [OH-] is calculated as 1 x [tex]10^{-10}[/tex] M if the [[tex]H^{+}[/tex]] changed from [1 x [tex]10^{-7}[/tex]] to [1 x [tex]10^{-4}[/tex]] during the concentration change.

By “undoing” the common logarithm by exponentiating both sides with base 10 to obtain [[tex]H^{+}[/tex]] = 10pH.

You need to know the hydronium ion concentration in moles per litre to determine the pH of an aqueous solution (molarity). The formula pH = - log is then used to get the pH. [H3O+].

Concentration of [tex]H^{+}[/tex] ions = [[tex]H^{+}[/tex]] = 1 x [tex]10^{-7}[/tex]

When concentration of [[tex]H^{+}[/tex]] ions changed to 1  x [tex]10^{-4}[/tex] M

[[tex]H^{+}[/tex]] = 1 x  [tex]10^{-4}[/tex] M

The pH of the solution will further change to:

pH = -log [[tex]H^{+}[/tex]]' = -log [1 x [tex]10^{-4}[/tex]] = 4

pH + pOH = 14

pOH = 14 - 4 = 10

And we know that:

pOH = -log  [[tex]OH^{-}[/tex]]

10 = -log  [[tex]OH^{-}[/tex]]

[[tex]OH^{-}[/tex]] = 1 x   [tex]10^{-10}[/tex] M

If the pH of the solution is known, it is possible to compute the hydrogen ion concentration in a solution, [H+], in mol L-1.

The negative logarithm (to base 10) of the hydrogen ion concentration in mol L-1 is used to calculate pH. pH equals -log10[H+]

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Answer: Rb is more reactive

Explanation: The reason rubidium is more reactive is because it loses its valence electron more readily than Mg does.

Answer:

Rb

Explanation:

Mg has 2 valence electrons to loose vs Rb has 1 valence electron to loose.

Rb wins because losing 1 electron is easier than having to lose 2, which means Rb is more reactive ("ready" to react).

mass of glucose (in grams) can the plant synthesize from the co 2 is 25.8g

molar mass of [tex]CO_{2}[/tex]= 44.01 g/mol

molar mass of [tex]C_{6} H_{12} O_{6}[/tex] =180.18g/mol

[tex](g)CO_{2}-- > (mol)CO_{2} --- > (mol)C_{6} H_{12} O_{6}-- > (g)C_{6} H_{12} O_{6}[/tex]m

       [tex]\frac{1 mol CO_{2} }{44.01 g CO_{2}}[/tex]                     [tex]\frac{1 mol C_{6} H_{12} O_{6} }{ 6 mol CO_{2}}[/tex]                  [tex]\frac{180.18 g C_{6} H_{12} O_{6} }{ 1 mol C_{6} H_{12} O_{6} }[/tex]

37.8g x       [tex]\frac{1 mol CO_{2} }{44.01 g CO_{2}}[/tex]      x         [tex]\frac{1 mol C_{6} H_{12} O_{6} }{ 6 mol CO_{2}}[/tex]    x   [tex]\frac{180.18 g C_{6} H_{12} O_{6} }{ 1 mol C_{6} H_{12} O_{6} }[/tex]

= 25.8g  [tex]C_{6} H_{12} O_{6}[/tex]

mass of glucose (in grams) can the plant synthesize from the co 2 is 25.8g.

It is a monosaccharide because it is the most basic type of carbohydrate. It has one sugar, thus this indicates. It's not by itself. Galactose, ribose, and fructose are examples of additional monosaccharides. One of the body's preferred sources of fuel in the form of carbs is glucose, along with fat.

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The type of force exists as a result of positive and negative charges is C. Strong nuclear.

It is known to often holds Quarks, the fundamental particles that make up protons and neutrons of the atomic nucleus, are held together by the strong force, which also keeps protons and neutrons together to form atomic nuclei.

Note that Positively charged protons as well as neutrally charged neutrons are created when the strong nuclear force brings together positively and negatively charged quarks. In the atomic nucleus, protons and neutrons are also held together by the strong nuclear force.

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When more energy is needed than the calories that have been consumed to release energy from lipids stores throughout the body.

Calories are the unit of energy used by your body during food digestion and absorption. A meal might provide your body extra energy if it contains more calories. Your body stores extra calories as body fat if you eat more food than you need. Even foods without fat might have a significant number of calories.

The most effective way to burn calories is through aerobic exercise, which includes sports like swimming, cycling, and walking. Include at least 30 minutes of exercise each day as a general goal.

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The number of significant figures in a result simply refers to the number of figures that are known with certainty. Here,

1000000 is 999999 rounded to three significant figures.

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Answer:

Filtration eg coffee maker

The balanced form of the chemical equation is as follows:

Na₂O + CaBr₂ → 2NaBr + CaO

A chemical equation is a symbolic representation of a chemical reaction where reactants are represented on the left, and products on the right.

A chemical equation is said to be balanced when the number of atoms of each element on both sides of the equation is the same.

To balance a chemical equation, we make use of coefficients, which are numbers placed in front of the elements to make the atoms equal.

According to this question, sodium oxide reacts with calcium bromide as follows:

Na₂O + CaBr₂ → 2NaBr + CaO

The above equation is said to balanced because the following atoms are equal on both sides of the equation:

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Answer:

Sn°(s) + 2Ag⁺(aq)  => Sn²⁺(aq) + 2Ag°

Explanation:

Sn°(s) => Sn²⁺(aq) + 2e⁻    [oxidation]

2Ag⁺(aq) + 2e⁻ => 2Ag°(s)  [reduction]

Sn°(s) + 2Ag⁺(aq)  => Sn²⁺(aq) + 2Ag°

The balanced equation of the reaction is:

The precipitate formed is magnesium hydroxide.

The mass of precipitate produced is 0.58 g.

The concentration of the ions remaining in the solution are:

[Mg²⁺] = 0.05 M

[NO₃⁻] = 0.1 M

The balanced equation of the reaction of aqueous potassium hydroxide and aqueous magnesium nitrate is given below:

2 KOH (aq) + Mg(NO₃)₂ ---> Mg(OH)₂ (s) + 2 KNO₃ (aq)

Magnesium hydroxide is obtained as a precipitate in the reaction above.

The mass of precipitate produced is calculated as follows:

moles of KOH (aq) reacting = 0.200 * 100 / 1000 = 0.02 moles

moles of Mg(NO₃)₂ reacting = 0.2 * 100 / 1000 = 0.02 moles

From the equation of reaction, KOH is the limiting reagent.

Moles of precipitate formed = 0.02 / 2 = 0.01 moles

molar mass of Mg(OH)₂ (s) = 58 g/mol

Mass of precipitate formed = 0.01 * 58

Mass of precipitate formed = 0.58 g

Moles of Mg(NO₃)₂ remaining = 0.02 - 0.01 = 0.01 moles

total volume of solution = 200 mL or 0.2 L

The concentration of each ion remaining in the solution is as follows:

[Mg²⁺] = 0.01 / 0.2 = 0.05 M

[NO₃⁻] = 0.01 * 2 / 0.2 = 0.1 M

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( a ) The pH of 4.8 × [tex]10^{-2}[/tex]  M solution is  1.3 ..

( b ) The pH of 4.71 pOH solution is 9.29

( c ) The pH of 9.61 × [tex]10^{-3}[/tex] M hydroxide ion solution is 11.98.

( d ) The pH of 1.37 × [tex]10^{-8}[/tex]   M solution is 8.17

( a )

pH = - ㏒ [  [tex]H^{+}[/tex] ]

pH = - ㏒ [ 4.8 × [tex]10^{-2}[/tex]  M ]

pH = 1.3

Therefore , the pH of 4.8 × [tex]10^{-2}[/tex]  M solution is  1.3 .

( b )

The pOH = - ㏒ [  [tex]OH^{-}[/tex] ]    

Given pOH =  4.71

So put the value of  pOH .

pH + pOH = 14

pH  =  = 14 - pOH  =  14 -  4.71 = 9.29

Therefore , the pH of 4.71 pOH solution is 9.29 .

( c )

The pOH = - ㏒ [  [tex]OH^{-}[/tex] ]

Given concentration of hydroxide ion =  9.61 × [tex]10^{-3}[/tex] M

So put the value of  concentration of hydroxide ion in equation 1

pOH = - ㏒9.61 × [tex]10^{-3}[/tex] M

pOH = 2.01

pH + pOH = 14

pH  =  = 14 - pOH  =  14 - 2.01 = 11.98

Therefore , the pH of  9.61 × [tex]10^{-3}[/tex] M hydroxide ion solution is 11.98.

( d )

pH = - ㏒ [  [tex]H^{+}[/tex] ]

pH = - ㏒ [ 1.37 × [tex]10^{-8}[/tex] M ]

pH = 8.17

Therefore , the pH of 1.37 × [tex]10^{-8}[/tex]   M solution is 8.17

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Answer:octahedral coordination around Na + and Cl − centers. 

Answer:The answer would be crepuscular! I actually study fireflies as a living after school!

From the description, we can see that A and B is one wavelength thus the distance between the points is also 2 cm.

We can define the wavelength as the distance between two successive crests or the distance between two successive troughs. The crests are above the chart and the troughs are below the chart.

In this case, we have been asked to obtain the distance between A and B. Knowing that the points A and B are two successive crests and we have been told that the wavelength is 2 cm thus the distance between A and B is 2cm.

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The mass of the iron object is 787.4 g.

The term density has to do with the mass per unit volume of the object. This implies that when we divide the mass of the object by the volume of the object, we get the density of the object.

We also have to note that the density is an intrinsic property of an object could be used as a means that can be harnessed in the process of trying to identify the unknown material that we have.

In this case we have the thorough depiction of the iron as we can see from the image attached and we want to find the mass of the object.

Volume of iron = 2 cm * 10 cm * 5 cm = 100 cm³

Density of iron = 7.874 g/cm³

Mass of iron = Volume * density =  100 cm³ *  7.874 g/cm³ = 787.4 g

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The equilibrium constant for the reaction at the given temperature is 273.03.

The equilibrium constant, Kc, for the reaction at the given temperature is calculated as follows:

Making an ICE table from the equation of the reaction and the given concentration values:

      H₂ (g) + I₂ (g) ⇌ 2 HI (g)

I      3.85     2.35        0

C     2.30    2.30     2 * 2.30

E      1.55    0.05      4.60

Kc =  [HI]² / [H₂] * [I₂]

Kc = (4.60)² / (1.55) * (0.05)

Kc = 273.03

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Complete question:

The following reaction was performed in a sealed vessel at 760 ∘C:

H₂ (g) + I₂ (g) ⇌ 2 HI (g)

Initially, only H₂ and I₂ were present at concentrations of [H₂] = 3.85M and [I₂] = 2.35M . The equilibrium concentration of I₂ is 0.0500 M .

What is the equilibrium constant, Kc, for the reaction at this temperature?

The amount of water that we get from the large balloon is greater than the amount of water that we get from the small balloon.

We know that water is composed of hydrogen and oxygen. Let us recall that the ratio of the water and the oxygen that form the water molecule is fixed irrespective of the volume of the water that we use for the reaction.

If we compare if you ignited a very large balloon of hydrogen and oxygen instead of a very small balloon filled with the same reactants, we would notice that the amount of water that is formed from the large balloon of hydrogen and oxygen is greater than that produced from a very small balloon filled with the same reactants.

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