Mrs. Smith showed her class three elements and described their properties. Properties of Elements Element 1 Good conductor of electricity and heat Element 2 Semiconductor of electricity and heat Element 3 Very poor conductor of electricity and heat Based on the properties of elements 1, 2, and 3, in which section of the periodic table would you find them?

Q: Why small grain size metals have the temperature environment greater mechanical strength than if…

A: The size of the grains plays an important role in the characteristics of the material, ranging from…

Q: order these with rising density glass liquid  gas crystal plasma

A: Density order is Solid >crystal > liquid >gases >plasma .

Q: Now examine the quartz sample (sample 25). Of the applications listed for quartz in Table 1.2, which…

A: Quartz sample: Quartz is the most abundant mineral found in the earth crust. It is one of the most…

Q: The data system; controls all modules of the HPLC instrument; takes signal from the detector and…

A: Ans: Computer

Q: Define reflux and define boiling point

A:

Q: In a properly assembled distillation setup, the heating source does not need to be suspended above…

A: The heating source can be a burner or a heating mantle. But in both cases they lie flat on the top…

Q: SOCI, ОН

A: The reaction of carboxylic acid with SOCl2 forms acyl chloride by replacing the OH with the Cl.

Q: What substance is obtained when the following separation method has been applied? Magnetic…

A: Separation is a method in which a mixture containing two or more components is separated into the…

Q: Page 17: Choose all of the following extensive properties density volume color mass melting point O…

A: A multiple choice question about extensive properties, which is to be accomplished.

Q: Determine the theoretical density for nickel, and compare it to its actual value. What accounts for…

A: The density of a material is the mass of a substance held in a given volume. Generally, the…

Q: Is this whole section correct?

A: The calculation you have done for the finding mass of water is not correct.

Q: How many microliters are in 30mL?

A:

Q: how woud you dothis with out a scintific calculator    how do   you calcult  1x10^-14/1.2x10^11 by…

A: We have to do the given calculation.

Q: Why is paper used for weighing dry, non-hygroscopic chemicals only? Why is watch glass used…

A: When weighing chemicals, only dry, non-hygroscopic substances may be weighed on paper, otherwise,…

Q: Which glassware Burnett, graduated celinder or pipette is most precise, why?

A: Precision in the measurement.Graduated cyllinder is least precise, followed by more precise burette…

Q: if a copper pipe truns blue green this means? Be sure to identify the recation step?

A: Answer:When a pure metal comes in direct contact of environmental factors and turn into a new…

Q: Given the following types of glassware, arrange them according to accuracy of measured volume. L…

A: All the above images are depicting the glasswares used in chemisy lab.

Q: 15. Why are safety data sheets important?

A: In this question we have to explain the applications of safety data sheet and explain why these are…

Q: What are the two most common types of secondarystructure?

A: The most common types of secondary structures are the α helix and the β pleated sheet.

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

A:

Q: why do some fruits give more electricity (voltage) than others?

A: Final answer is given in explanation please see from there.Explanation:Approach to solving the…

Q: Define the process nomenclature.

A: INTRODUCTION: Particular term has been defined for choosing name of different compound in the field…

Q: potassium chloride + ammonium nitrate - Balanced equation Phase Турes Total Eqn Net Eqn Observation

A: As per the given data we have to find the Balanced equation, Net ionic equation , observations.

Q: This shows incorrect. Pls help

A:

Q: 4) The percent moisture content of the following results weight of crucible and wet sample is…

A:

Q: Describe the Goldsmith Classification of element

A: A geochemical classification developed by Victor Goldschmidt (1888–1947) is the chemical elements…

Q: a) By how much should the student expect their sample measurements to increase by? Why? b) Will…

A: (a) In spectrophotometry, the absorbance is directly proportional to the concentration of analyte…

Q: Q4. a)Which microscope should be used to obtain micrographs of each of the following samples... b)…

A: The given three samples are A) Powder sampleB) Jewellery sampleC) Liquid in a bottle sampleThe type…

Q: what are refractory materials?

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

Q: What are two precautions you must observe when using the electronic balance

A: Electronic balance is used to meothe weight of compound in labs.

Q: The optical methods analyze samples based on collecting the data resulted from the interaction of…

A: The analysation of the sample means the determination of the types of the group, their positions and…

Q: 18. The mass of an Iron cylinder is 125 g. The cylinder is placed into a graduated cylinder…

A: Given,mass of iron cylinder = 125 gvolume of water in graduated cylinder = 30.00 mLvolume of water…

Q: Give at least three differences of a bulk vs a fine chemical.

A: The products of the chemical industry can be classified as fine chemicals and bulk chemicals.

Q: ● Watch the following video: https://www.youtube.com/watch?v=kkBFG1mTSBk Record the color of the…

A:

Q: In which option is the order showing whether the questions given below are true or false? (  )…

A: Analyze all the given statements and their relative terms. The given terms can be related to the…

Q: The diamond could cut/scratch the glass, this is a manifestation of what property? a. hardness b.…

A: Answer Diamond has high hardness than any other metal or non metals

Q: Ceramics used as abrasives must be hard and tough and be able to withstand high temperatures that…

A: We have given that  Ceramics used as abrasives must be hard and tough and be able to withstand high…

Q: The HMIS label rates the material risks under normal use conditions. a.true b. False

A:

Q: How would you simplify the following expression?

A: The uncertainty is L213-12π2-L22. We have to simplify the above expression.

Q: A good sample of benzoic acid melts at 121-122˚C. However, a student had a sample that melted over a…

A: Given: A good sample of benzoic acid melts at 121-122˚C. However, a student had a sample that melted…

Q: What is opaque

A: Materials can be classified based on the amount of light they transmit. They are classified as…

Q: A quantity of substance that can be seen would be considered the A level.

A: The complete sentence is: "A quantity of substance that can be seen would be considered the…

Q: show

A:

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.