a. 1) oso4; 2) h2o2, h2o b. this reaction is impossible c. 1) kmno4; 2) h2o d. 1) mcpba; 2) koh, h2o

a) The reaction equation is LiBr + AgNO3 ----> AgBr + LiNO3

Net ionic equation; Ag^+ + Br^- ----> AgBr

NO3^- and Li^+ are spectator ions

b) Reaction equation; 2 (NH4)I + Pb(NO3)2 ---> PbI2 + 2NH4NO3

Net ionic equation; Pb^2+ + 2I^- ---->PbI2

NH4^+ and NO3^- are spectator ions

c) (NH4)2S + 2KOH → K2S + 2NH3 + 2H2O

This reaction is not ionic

We know that the spectator ions are the ions that do not take part in the chemical reaction. The ions that are called the spectator ions are the ions that would remain unchanged at the end of the reaction.

We know that a balanced reaction equation would have the number of atoms on the left hand side and the right hand side of the reaction equation as the same.

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Answer:

Dithiosulfatosilver

Explanation:

Answer:

3.00 L

Explanation:

PV = nRT

(82 atm × 101325 Pa/atm) V = (10 mol) (8.314 J/mol/K) (27 + 273) K

V = 0.00300 m³

V = 3.00 L

Answer:

Electrons.

Hope it helps.

Answer:

92,955,887.6 miles

150,000,000 kilometers.

i believe the answer is 15*10^7

Explanation:

Answer:

The sun's position near earth

Explanation:

Answer:

The acid will react with the metal, causing hydrogen gas and salt to form from it.

the steady state concentration of the drug in the patient's bloodstream is 400 μmol/L.

throughout the body, the blood's flow or motion. Blood travels through blood veins from the heart to the rest of the liver and muscles, tissues, and organs, carrying oxygen, nutrition, and other vital substances.

The rate of drug infusion is given as 20 μmol/h. The rate of drug elimination can be described by first-order kinetics:

d[C]/dt = -k[C]

where [C] is the concentration of the drug in the bloodstream, t is time, and k is the first-order rate constant for drug elimination by the liver.

20 μmol/h = k[C]

Solving for [C]:

[C] = (20 μmol/h) / k

Substituting k = 0.05 h⁻¹ (given in the problem):

[C] = (20 μmol/h) / (0.05 h⁻¹)

= 400 μmol/L

the steady state concentration of the drug in the patient's bloodstream is 400 μmol/L.

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Answer:

The ways that mutation can affect an organism include:

Changing the physical characteristics of the organism.

It can impact the way that the DNA is able to code the genetic information.

Also, mutation can lead to the death of an organism.

What is mutation?

Mutation simply means a change in the DNA sequence of an organism. It can result from DNA copying mistakes that were made during the cell division.

Mutation can affect an organism as it changes the phenotype of the organism. It can also impact the way that the DNA is able to code the genetic information and lead to the death of an organism.

If it has been discovered that a building has been blown up using TNT, the investigators should look for evidence of both primary and triggering explosives. The correct answers are options A and C.

Primary explosives are typically used to initiate the detonation of a larger amount of explosive. In the case of a TNT explosion, primary explosives could have been used to set off the TNT itself.

Low explosives, such as gunpowder, can be used to create a slower-burning fuse that ignites the primary explosives.

Triggering explosives, such as detonators, are used to set off the primary explosives. They can be electric or non-electric.

Reactionary explosives are those that react with other materials to cause an explosion. They are not typically used in the initiation of an explosion and are therefore less relevant in this context.

Therefore, options A and C are correct.

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When copper is placed in water, it reacts with the water molecules to form copper(II) ions and hydrogen gas. The reaction is exothermic, which means it releases heat energy into the surroundings. By measuring the temperature changes that occur, we can determine the amount of heat that is released by the reaction.

The temperature changes can be measured using a thermometer. We can place the copper metal in a container of water and take the initial temperature reading. Then, we can add the copper to the water and record the temperature change over time. By monitoring the temperature changes, we can observe the exothermic reaction taking place.

The heat released by the reaction between copper and water has many practical applications, including in the design of power plants and in the production of steam for heating and electricity generation. Therefore, understanding the heat released during this reaction is important for a variety of scientific and engineering fields.

In conclusion, step 7 of putting copper metal in water and measuring the temperature changes allows us to observe and measure the heat released by the exothermic reaction between copper and water, which has important applications in various scientific and engineering fields.

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Answer:

Aluminum

copper

Iron

Lead

The Final Slide:

Aluminum- 0.90

Copper- 0.35

Iron- 0.44

Lead- 0.12

Explanation:

I hope this helps! :))))

Answer:

Because the particles cannot move around, a solid has a fixed shape. Liquids do not have a fixed shape but they do have a fixed volume. The particles are very close together. ... A liquid can flow and take the shape of its container.

Explanation

PAY ATTENTION IN CLASS!!!

Considering the definition of mass volume percentage, the percent concentration of dextrose is 45%.

Mass volume percentage (% m/V) is a measure of concentration that indicates the number of grams of solute per 100 volume units of the solution. In other words, the volume percent of a component in the solution is defined as the ratio of the mass of the component to the volume of the solution, expressed as a percentage.

The mass volume percentage of a solution is determined by the following expression:

\(Mass volume percentage=\frac{mass of solute}{volume of solution}x100\)

In this case, you know:

Replacing in the definition of mass volume percentage:

\(Mass volume percentage=\frac{450 grams}{1000 mL}x100\)

Solving:

mass volume percentage= 45%

Finally, the percent concentration of dextrose is 45%.

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Answer:

Explanation:

36 grams HClX (1mole HCl /36.46097 g HCl) X (6.02 X 10^23 particles/ 1mole)

=5.943890138 X 10^23 Molecules

As there are total of two atoms in HCl molecule( one hydrogen and one chlorine,

No. of atoms in one mole of HCl = 2x5.943890138x10²³=1.188778028 x10²³ atoms.  If you need it to the correct sig figs answer is 1.8 X x10²³ atoms.

here is where the numbers came from

the 1moleHCl/36.46097 g HCl is the Molar mass (get it from the periodic table

the 6.02 X 10^23 parcticle (atoms or molecules) / 1 Mole is avogadro's number

Will Argon, Neon, and Krypton react same

Reactivity is the relative capacity of an atom or molecule or radical to undergo a chemical reaction with another atom or molecule or compound called as reactivity

In the noble gases only helium and neon are inert and the other noble gases will react with a limited scale under very specific conditions and krypton will form solid with fluorine and xenon will form a variety of compounds with oxygen and fluorine and the name comes from the fact that these elements are virtually unreactive towards other elements and they do not react with other element

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The conversions that could be performed with these two conversion factors alone, Density—> molar mass or/formula mass—> is volume ---> moles; option D

Conversion factors are expressions or values which are used to convert from one unit or value to another.

The conversion factor given is:

Density—> molar mass or/formula mass—>

volume = density/mass

moles = mass/molar mass

Volume to moles = density/mass -->  mass/ molar mass

Volume to moles = density ---> molar mass or formula mass

The conversion of volume to moles will therefore require density and molar mass or formula.

In conclusion, conversion factors are used to convert from one unit  value to another.

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Photosynthesis is a chemical reaction in which energy from sunlight is used to convert carbon dioxide and water into glucose and oxygen. This process occurs in the chloroplasts of plant cells and is essential for the survival of plants, as well as for many other organisms that depend on plants for food.

Answer: metal turn orange and weaker as it gets oxidised

Explanation:

The reaction is spontaneous under conditions of low pressure and high temperature

We can say that a reaction is spontaneous when we know that the reaction is able to go on on its own. This implies that there is a mnimum energy that is required for the reaction to proceed.

The reaction is thus a sort of a self propagating system that goes on freely of its own accord.. We can see that what is going on here is the decomposition of the nitrogen V oxide gas as shown.

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Answer

TRUE

Explanation

The statement hydrocarbons can contain anywhere from one to twenty

carbon atoms.

Answer:

What are the following substances?

Explanation:

Answer:

since,hydrogen bonding requires a strongly electronegative atom bonded to a hydrogen atom,only HF willexhibit hydrogen bonding,as afluorine is sufficiently partially positive hydrogen that can form bondwith a lone pair an oxygen in water .

Hope this help u

Three solutions are mixed together to form a single solution. The precipitate in the solution is PbS and PbCl₂.

Precipitates are the residues that are present in the solution. These residues are solid that came out of the solution.

Here given 3 compounds are water-soluble.

From the solution, we have to find the possible combination which is water-soluble.

Consider,

Pb(CH3COO)₂ Pb₂+(aq) + 2CH₃COO-(aq)

Na₂S₂Na+(aq) + S₂-(aq)

LiCl Li+(aq) + Cl-(aq)

Now consider a potential accumulation of positive and negative ions which is water-soluble.

The possible accumulations are,

PbS , PbCl₂

Ca(CH₃COO)₂ , CaS

Now viewing with solubility charge, we can find that both PbS and PbCl2 are water indissoluble and create a precipitate.

But both Ca(CH₃COO)₂ and CaS are water-soluble.

Therefore, the precipitates are PbS and PbCl₂.

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Answer: D.

Explanation: :)

Answer:

d

Explanation:

Answer: 4

Explanation: There are 4 sig figs because 6 and 4 are always considered significant. And a 0 is considered a sig fig if it's between two numbers besides 0 or if it's after a decimal point.

The ozone layer is present in the stratosphere layer of the Earth's atmosphere. Therefore, option (C) is correct.

An atmosphere can be defined as layers of gases that envelop a planet and is held in place due to the gravity of the planetary body. A planet contains an atmosphere when the gravity is great and the temperature of the atmosphere of any planet is low.

Earth's atmosphere is made of Nitrogen (78 %), Oxygen (21%), Argon (0.9%), and Carbon dioxide (0.04 %).  The troposphere can be defined as the lowest layer of the atmosphere. The troposphere contains 75 to 80 % of the mass of the atmosphere.

The stratosphere contains the ozone layer, at an altitude between 15km and 35km. This atmospheric layer absorbs most of the UV radiation that Earth receives from the Sun.

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This question is incomplete, the complete question is;

A 17.0 g sample of quartz, which has a specific heat capacity of 0.730 J.g⁻¹°C⁻¹, is dropped into an insulated container containing 200.0 g of water at 85°C and a constant pressure of 1 atm . The initial temperature of the quartz is 7.2°C.  

Assuming no heat is absorbed from or by the container, or the surroundings, calculate the equilibrium temperature of the water. Be sure your answer has the correct 3 number of significant digits.  

Answer:

the equilibrium temperature of the water is 83.9°C

Explanation:

Given the data in the question;

Since no heat is absorbed from or by the container, or the surroundings;

Then  Heat lost by the quartz = heat gained by water

ΔH1 = ΔH2

DH = mcΔT

where m is mass, C is specific heat capacity and ΔT is temperature change;

so

(mcΔT)1 = (mcΔT)2

we know that; specific heat capacity of is 4200 Joule/Kilogram K (J/kg∙K) = 4.2 (J/g∙°C)

we substitute

17.0g × 0.730 J.g⁻¹°C⁻¹ × ( 7.2°C - T2)  = 200.0g × 4.2 J/g∙°C × ( T2 - 85°C)

89.352 -  12.41T2 = 840T2 - 71400

840T2 + 12.41T2 = 89.352 + 71400

852.41T2 = 71489.35

T2 = 71489.35 / 852.41 = 83.86°C ≈ 83.9°C

Therefore, the equilibrium temperature of the water is 83.9°C

When an acid is added to water, hydronium ions are formed.

What happens when the acid is added to water?

The acid has the ability to give protons that is hydrogen ions. When acid is added to water, water acts as base and takes up the protons released by the acid and forms hydronium ions that is H3O+ ions.

This process is exothermic in nature that is it releases heat. So acid is always added to water and not water to acid.

Therefore, when an acid is added to water, it gives hydronium ions in the water.

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Answer:

0.717m

Explanation:

Molality, m, is an unit of concentration defined as the ratio between moles of solute and kg of solvent:

Molality: Moles solute / kg solvent.

In the problem, water is the solvent (Is the compound in the higher quantity) whereas H₂SO₄ is the solute.

The concentration of the solution is 0.750 moles H₂SO₄ / L.

Thus, you need to convert the liters to kg to obtain the molality. That is:

0.750 moles H₂SO₄ / L ₓ (1L / 1000mL) ₓ (1mL / 1.046g) ₓ (1000g / 1kg) =

0.717 moles H₂SO₄ / kg

Answer:

the answer is A to protect and support the cell

Answer:

A)

Explanation: