A soil is contaminated with heavy metals. Suggest a method of soil showing to clean the soil. Explain your method.

Q: Calculate the amount of fertilizer needed to meet the recommended rate for eggplants which is…

A: Recommended rate of fertilizer for eggplant = 120-60-15 Kg/ha Nitrogen = 120 Kg Phosphorus = 60 Kg…

Q: Metals are both malleable and reactive. Which statement correctly describes these two properties of…

A: a element is said to be metal if it easily donates electron, its ionization energy is low .

Q: Explain how a geologist might use the flame test to identify a cation from different mineral…

A: A question based on qualitative analysis, which is to be accomplished.

Q: You can calculate cost effectiveness using the following formula: volume of HCI neutralized per…

A: It is given that 23.73 mL of HCl is needed to neutralize one doze which is 2 tablets and the cost of…

Q: Length of heating time for empty crucible and lid                                        _____10.0…

A: Given  Length of heating time for empty crucible and lid  10 min Mass of empty crucible and lid…

Q: O a. Students cannot put a chemical directly on the balance pan. O b. Solid waste can be disposed in…

A: Solid waste can not be disposed in the sink because this could be a reason of water pollution. Some…

Q: Part B Observe and record the appearances of the metal strips and the solutions in the test tubes.…

A: Appearance of metal and metal solution

Q: What is the chemical property of iron nail

A: Iron nail is made up of iron and it is the tendency of iron to get oxidized in the presence of…

Q: List two possible steps where copper yield may be lost

A: There is no way to get a 100% yield of the desired copper is any chemical reaction or preparation.…

Q: Disasters happened with the unsafe storage and handling of fireworks/firecracker products. Enumerate…

A: There is little difference in firecrackers and fireworks. Fireworks are a simple devise used for…

Q: (a) copper(II) nitrate (b) sulfur (c) honey (d) drinking water OUCOTIOU TI

A: Step 1) a) copper(II) nitrate : Cu(NO3)2 It is also known as cupric nitrate formula or copper…

Q: Finely divided, partially decomposed organic matter founc in soils is called Select one: a.…

A: Finely divided partially decomposed organic matter found in solid is called as,

Q: 6. Crystalline hydrate is not a drug? A) Iron (II) sulfate B) Copper (II) sulfate B) Magnesium…

A:

Q: Part A Measure and record the masses of all the metal strips you set out in front of the test tubes.

A: 1. molar mass of Magnesium is24.305 g/mol. 2. Zinc mass number of 65.39 g/mol. 3. Copper atomic mass…

Q: 46.) Which statement is correct   a. Sugar is a good conductor b. NaCl is a good conductor c.…

A: Electricity is conducted by charges, it can be electrons or ions. The material that can be…

Q: Method of separation and chemical reaction of calcium oxide and water

A: The process in which solid can be separated from liquid through a filter medium which only allows…

Q: _1. An antimicrobial agent preservative that inhibits the growth of molds, yeast and bacteria in…

A: 1) An antimicrobial agent preservative that inhibits the growth of molds, yeast and bacteria in food…

Q: Complete this sentence  THe electrical conductivity of a sample will       when the size of the…

A: When a Voltage is applied to the electrode dipped intoan electrolytic solution , ions of the…

Q: Suppose you have a bucket of sand containing 1.5 billion grains of sand ( 1.5×109 grains). Most of…

A: Total number of grains = 1.5 ×109 grains Concentration of brown sand is = 4.0 %  The number of brown…

Q: Is there a chemical reaction between copper and silver nitrate? Which elements react, and what is…

A: The chemical formula is a short term notation which is used to represent the no. of atoms present in…

Q: Which of the following is NOT true about flash combustion? 1. The process is faster and simpler than…

A: The Flash combustion method produces a complete combustion of the sample within. a high-temperature…

Q: .Ash content is - 29 A - Ash = residue after combustion. O B - Ash = residue after cooling. O The…

A: A question based on general chemistry that is to be accomplished.

Q: In a few lines, describe the IMMENENT IMPORTANCE of "Green Chemistry" and its importance to society…

A: Green chemistry: The branch of chemistry which deals with the reduction of the harmful effect of…

Q: State four advantages of using nanomaterials in wastewater treatment

A: Nanomaterials, nowadays, are being successfully used in various aspects of science and one of the…

Q: Porosity is a measure of the void or empty spaces in a material and is a fraction of the volume of…

A: In order to find the density of the salt solution, we have to find the volume of the salt solution…

Q: Explain the idea of “synergistic effects.”

A: Given :  To explain synergistic effects

Q: 2- Make a comparison between brittle and ductile materials Brittle Materials Ductile materials

A:

Q: Differentiate powder from granules? Make it in table form.

A:

Q: Q4) Recommend some possible methods to identify different materials without resorting to chemical…

A: Some of the testing and sorting methods to identify different materials without involving lengthy…

Q: Mass of watch glass and evaporating dish:67.511 g   Mass of watch glass, evaporating dish, and Mg…

A: We can calculate mass of Mg,Cl, product by calculating mass before and after the reaction.

Q: Bismuth is a metallic element in Group V of the Periodic Table. (a) Complete the diagram to sHow the…

A: Since you posted questions with multiple sub parts we only answer the first three The solid material…

Q: Section 15 identifies the safety, health, and environmental regulations specific to the product, and…

A: Safety data sheets (SDS) communicate hazard information about chemical products

Q: Three examples of where the nitrogen can be found in the real world.

A: Nitrogen is gas in nature.

Q: Which one is occurring? State an observation. • A metallic deposit appears • Bubbles appear •…

A: Ans. (a) A metallic deposit appears Electrophoretic deposition (EPD) is a technique where charged…

Q: Preparations of Solution by Chemical Reaction are classified as extractives. a)true b)false

A: Given: Preparations of solution by chemical reactions are classified as extractives.

Q: Area Of Field Health And Medicine Food And Agriculture Consumer Product Some Chemical Components…

A: Consumer goods Consumer goods, often known as final goods, are items that are purchased by people or…

Q: Calcium ions contribute to the hardness of water.  a) Based on the Ksp experiment, describe a way to…

A: Minerals of ions makes water hardness, Calcium and magnesium ions are the major reason for the…

Q: Which of the following is not a use of a crucible? Select one :…

A: Which of the following is not a use of a crucible? Select one :…

Q: Porosity is a measure of the void or empty spaces in a material and is a fraction of the volume of…

A:

Q: 275g. The soil

A: Mass of saturated pores= 275gm After drying  24 hours ,sample weight = 200gm

Q: 5. Two students attempt to etch their initials on a gold plate using hydrochloric acid. 6. A student…

A: By calculating the cell potential we can determine the reaction spontaneity.

Q: Which of the following statements is incorrect? a. Safety shower would immediately be used if your…

A: Laboratory safety is very important in order to maintain a safe environment for the researchers as…

Q: Why is it important to have a good waste management in the laboratory. Explain and give example.

A: It is very important to have good waste management in the laboratory.

Q: The use of living organisms to help clean up areas of pollution is known as

A: The living organisms which is used in clean up the area of pollution is Bioremediation.…

Q: Name the following Fe(NO3)2

A: The compound formula represents the number of atoms in a molecule or in a compound. The given…

Q: What is chemical ? How do you deal with chemical ? How are chemical storage ?

A:

Q: Consider an iron bar on a balance weights 75.0g.   As the iron bar rusts, which of the following…

A: Interpretation: As the 75.0 g of iron bar rusts, then which of the given statement is true is to be…

Q: water is a good conductor of electricity but in its purest form called distilled water it acts as:…

A: Insulator - Which doesn't allow the electricity to pass through it. Conductor - Allow electricity to…

Q: Boron is concentrated mainly in the lungs (0.34 mg), thyroid gland (0.30 mg), spleen (0.26mg), brain…

A: Given that, Amount of boron in lungs = 0.34 mg Amount of boron in thyroid gland = 0.30 mg Amount of…