Which is a zinc ore and is used in paints, sunscreen and coins? A. Anhydrite B. Bauxite C. Chalcopyrite D. Sphalerite

Q: What is hydrometallurgy? Give one example where it is used for metal extraction.

A: The definition of hydrometallurgy with an example has to be discussed,

Q: What is the role of heavy metal balance sheet in our ecosystem?

A: Heavy-metal flows (Cd, Cu, Pb, and Zn) of arable, dairy and mixed farming systems and farm-gate and…

Q: Explain Ostwald process of manufacturing nitric acid(HNO3)

A: There was a German Scientist who developed a process that is useful in manufacturing nitric acid.…

Q: Calculate the composition, in weight percent, of an alloy that contains 218.0 kg titanium, 14.6 kg…

A: Given: Mass of titanium = 218.0 Kg Mass of aluminium = 14.6 Kg And mass of vanadium = 9.7 Kg.

Q: Write a balanced equation to show the reaction between magnesium metal and aluminum chloride. What…

A: Write the balanced equation to show the reaction between magnesium metal and aluminum chloride. What…

Q: Can all minerals of a metal act as ores? Justify.

A:

Q: Polonium is the only metal that forms a simple cubic crystal. Its coordination number is a. 4 b.…

A: Coordination no. Of polonium is six. Beacuse it forms simple cubic unit cell.

Q: The three largest uses for polymers are in fibers, plastics, and elastomers (rubbers). We can…

A: Given,  Options are :

Q: A manufacturing company is trying to produce a lightweight but strong cart for use by home…

A: For lightweight, we have to compare the densities of the metals.  The smaller the density lighter is…

Q: The formation of specific minerals may often be described using HSAB Theory. Predict which of the…

A: The HSAB (Hard and Soft Acids and Bases) Theory groups ions into soft/hard acids or bases.…

Q: What is Bakelite? How is it formed? Include equations if possible

A:

Q: What is the correct structural form for the silicate BaTi(Si3O9)? Select one: a. amphibole (double…

A: Given compound BaTi(Si3O9).

Q: Copper + zinc nitrate Observations: Net ionic equation:

A: Copper + zinc nitrate -----> No reaction. Observations: No reaction. Net ionic equation : No…

Q: Briefly define each term. a. orthosilicate b. amphibole c. pyroxene d. pyrosilicate e. feldspar

A: Since you are posted with multiple sub-parts. As per the rule, I am answering the first three…

Q: Why does Copper oxide turns red when reduced? What material is responsible for this?

A: In any chemical reaction, if number of electron is increasing of individual atom or molecule then…

Q: Left figure: Oxygen ions - green spheres, Calcium ions - purple spheres, Titanium ion – tan spheres…

A: The crystal unit cell has calcium ions at 8 corners, oxygen ions at 6 face center & titanium ion…

Q: 15. How are bicarbonate and carbonate related?

A: Note: According to our guidelines we are supposed to answer only one question. Kindly repost other…

Q: • 1. What is metallurgy? • 2. Give at least 5 examples of Ferrous alloy. Explain briefly its…

A: Detail about metallurgy is given below.

Q: Which type of coal has the lowest carbon content? A. anthracite B. lignite C. peat

A: The 3 types of coal given are, A) anthracite  B) lignite C) Peat

Q: Which reaction requires a metal catalyst? Explain. A. hydrohalogenation B. halogenation C.…

A:

Q: mineralization

A: Organic substance + O2 → CO2 + H2O

Q: 1. Write a balanced equation for the reduction of Co;O3 by carbon monoxide. 2. Write a balanced…

A: The question is based on the concept of inorganic chemistry. we have to write the chemical equations…

Q: The production of high-grade iron from hematite and magnetite using a blast furnace involves several…

A: The production of high-grade iron from hematite and magnetite using a blast furnace involves several…

Q: in water hardness calcium is a. reacted with surface active agents and precipitates them b.…

A: In water hardness, calcium reacts with carbonate and form compound calcium carbonate. Hence, in the…

Q: Which two sulfides can be dangerous to the human body?     A. azurite and cuprite     B.…

A: sulfides can be dangerous to the human body are

Q: Lithium reacts violently with water to form aquoeous lithium hydroxide and hydrogen gas. Do you…

A: When lithium undergoes reaction with water then it forms lithium hydroxide and hydrogen gas The…

Q: Silicones are classified as O a. Elastomers O b. Cast iron O c. Thermoplastics O d. Ceramics

A: Silicones is synthetic elastomer that show viscosity and elasticity.

Q: Which of the following are incorrectly paired? a. Downs cell – electrolyzes molten sodium chloride…

A:

Q: d) Discuss the advantage of aluminium and magnesium over steel in industrial applications. How could…

A:

Q: name the ore of aluminium.

A: Ore: It is a natural occurrence of rock in which minerals are present with economically significant…

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.