This next picture shows 6 more substances to be tested. These will be burned in solid form. Note that there are 3 elemental powders, small pieces of charcoal, a wooden splint, and a piece of steel wool. Selenium powder Sulfur Copper powder Charcoal

Q: What chemical process (or processes) is (are) the most likely responsible for any observed changes…

A: Changes in the color or texture on the surface of the material indicate that a chemical reaction…

Q: >List four metals that occur as elements in their natural state.

A: Native element minerals occur in nature in uncombined form and they have a distinct mineral…

Q: 800 A в 600 400 200 20 40 60 80 100 Temperature (°C) Choose the best answer from the drop down menu.…

A: Since, you have asked multiple question, we will solve the first question for you. If you want any…

Q: Examples of Chemical sub sectors are ‘agricultural chemicals’ and ‘fine chemicals’. Give 3 examples…

A: Agricultural chemicals: These are the chemicals that specifically helps in enhancing the…

Q: Is a pearl a mineral? Provide evidence for your conclusion

A: A question about mineral nature of pearls.

Q: As an analyst, you were asked to determine the Ca content of the dolomite samples from Manila Bay…

A: Gravimetry analysis is a method of quantitative chemical analysis In this method  the species which…

Q: What mass of water (in grams) is produced by the complete combustion of 2.68 g of ethanol, C2H5OH?…

A: Burning of any hydrocarbon gives CO2 and water from the balance equation we can calculate it .

Q: Answer the following: NO PLAGIARISM  1. What are nanomaterials and how are they made? 2. What are…

A: 1).Regardless of the dimensions taken into account, nanomaterials are defined as particles with a…

Q: Dr. Wong's assistant made the observations below while heating a sample of solid hydrogen. Using the…

A:

Q: Please help me answer this problem. It will be great help, thank you! Express the answer to the…

A: Given: The density of the face-centered cubic unit cell=10470 kg/m3=10.47 g/cm3. The number of atoms…

Q: Which of the following is true about heavy metals and their environmental impact? O a. Coffee and…

A: A metal is a substance with a glossy look that conducts electricity and heat reasonably effectively…

Q: Which type of model best represents crystals A:space-fill B:Lewis dot C:ball-and -stick D:ribbon

A: We are to discuss which type of model best represents crystals  from the given options. Space fill…

Q: Think about any flavored beverage that is not colorless (tea, soda, sports drink). Suppose you share…

A: Considering the case of Tea. If the same beverage is divided into two glasses then it look exactly…

Q: What are refractories? How are they classified?. Give examplesfor each type.

A:

Q: What is the difference between raw and pure products?

A: Raw materials often include insoluble particles requiring a clarification by pass system beforehand,…

Q: art 2 A. Enumerate five other properties of minerals that is dependent with light and explain each

A: Note:- As per bartleby guildelines, an expert is allowed to answer one question at a time. Please…

Q: What is the property of a material that makes it transparent? Why does mineral such as emerald…

A:

Q: Differentiate between Polymers and Plastics? Give some examples?

A: The word polymer is the combination of two units : 'poly' and 'mers' where 'poly' means many and…

Q: How would YOU compare the texture of diorite with the texture of gneiss? Answer in a complete…

A: Diorite: Diorite is a grey to a dark-grey intermediate intrusive igneous rock composed principally…

Q: There are four sketches below. The first sketch shows a sample of Substance X. The three sketches…

A: Answer:- This question is answered by using the simple concept of physical change and the chemical…

Q: Lithium has an atomic radius of 0.152 nm, a BCC crystal structure, and an atomic weight of 6.941…

A: 1. Theoretical Density of Lithium:Lithium has a body-centered cubic (BCC) crystal structure. To…

Q: Charcoal is a good absorbing agent due to its large surface area that can attract particles to its…

A: To solve this problem we have to know about charcoal .

Q: how does the amount of impurities in water affect the ability of light to penetrate it? Second…

A: Results & Analysis and Conclusion:

Q: what are refractory materials?

A: Materials that are inorganic non-metallic materials are called refractories.  They can withstand…

Q: Classify each property according to whether it is displayed by metals or by nonmetals. Properties of…

A:

Q: Metal lithium strontium calcium magnesium zinc copper barium manganese lead arsenic potassium sodium…

A: Flame test is used to identify the group 1 metals.Lithium: The flame color for lithium is…

Q: . You found a weird ceramic material on the street and wonders if it might be ok to use in a medical…

A:

Q: Give an example of an ethical dilemma that can occur in nanotechnology research. Discuss why it is…

A: Nanotechnology is the study of special properties of particles having size in the range 1 - 100…

Q: Nanomaterials provide various applications that can benefit humans. Are there possible disadvantages…

A: As we know that Nanomaterials are very useful for humans , these are useful in different forms as a…

Q: Please help me answer this problem. It will be great help, thank you! Express the answer to the…

A: The FCC means face-centered cubic unit cell. The value of the number of atoms per unit cell is 4.…

Q: What are the differences between crazes vs. cracks in polymer? Can you still use polymeric materials…

A:

Q: How do the properties of polymers compare with those of metals?

A:

Q: Which of the following does NOT describe a mineral? Question 27Answer a. a naturally occurring,…

A: Option C: natural gemsExplanation:Approach to solving the question: through analyzing each option.…

Q: B) What do you know about the chemistry of polymers.

A: Introduction :  The term polymer can be defined as the very large molecules having high molecular…

Q: Which of the following is not easy to clean up? A. Oil B. Tempera C. Water Color D. Acrylic Which…

A: Tempera is an emulsion miscible with water, typically egg yolk. used fine painting, mainly on wood…

Q: Can two samples that have different sets of chemical elements be the same mineral? Why or why not?…

A: A substance is referred to as a mineral if it is an inorganic, homogenous, crystalline solid that…

Q: 1. An Non-metallic mineral is not see-through. 2. A mineral is a little see-through. 3. A…

A: We have to arrange the jumbled up words,marked in the box, in the appropriate blanks,based on the…

Q: Could we have used other materials instead of copper and zinc plates ? If so, list 2 other materials…

A: The question is asking if there are alternative materials that could be used in place of copper and…

Q: What is the composition of ‘Copper matte’?

A: Copper matte is a mixture of copper sulphide and iron sulphide.

Q: How to define appearance of substance?

A: The physical appearance of a substance is its colour, size, shape, boiling point, melting point,…

Q: 2) For a separate job, you are asked to assemble a number of tricycles by attaching wheels to the…

A: No. Of complete frames=70 No.of rear wheels=123 No. Of front wheels=74 For 1 complete tricycle, no.…

Q: How does molecular sieving work in the chemical industry? Explain each step of the molecular sieving…

A: Answer - molecular sieve works by adsorbing gas or liquid molecules that are smaller than the…

Q: This next picture shows 6 more substances to be tested. These will be burned in solid form. Note…

A: Burning or combustion is a chemical reaction In combustion the fuel or the substance reacts with…