Sometimes clothes cling together when removed from a dryer. What kinds of charges are on the clothes?

Q: Part C How many Rh atoms would have to be placed side by side to span a distance of 7.5 µm ? Express…

A: Atom is the smallest  unit of ordinary matter which forms a chemical  element.

Q: The famous frenchman who invented a process was .......? The famous German who had a set of…

A: To write: The famous Frenchman who invented a process was .......? The famous German who had a set…

Q: Which substances conduct electricity?

A: The conductance of electricity in a substance is a measure of how easily the flow of electricity…

Q: Albert Szent-Gyorgi, a pioneer in early photosynthesis research, stated, “What drives life is a…

A: Given:-             What drives life is a little electric current, kept up by the sunshine

Q: How do metals react in a period?

A: Metals having tendency to loose electrons, and the tendency of an element to lose electrons…

Q: How many major plates does the Earth have?

A:

Q: 16) A 0.0758-g tungsten filament 17) A 1.50-g silver coin 18) A 60.0 g sample of FeCl3

A: Given that : We have to calculate the number of moles contained in each of the following samples :…

Q: Examples of Conductivity meters

A: A conductivity meter measures conductance by means of electronics connected to a sensor  immersed in…

Q: Use the information and models to answer the following questiön. A group of students are trying to…

A: Electrical conductive material are those which can transfer charge from one end to other end.

Q: . ___________ glass fragments into small squares, or“dices,” with little splintering when broken.

A: Tempered glass is made by heating a glass pane above its transition temperature and then rapidly…

Q: What is nanomaterial

A: Materials with an average grain size less than 100 nanometers, called Nanomaterials. Nanomaterials…

Q: List and Define kinds of samples according to size:

A: This is a question from Analytical Chemistry. Sample size means amount of sample taken for analysis.…

Q: Soil is made of

A: Soil is made of of organic  and Inorganic  material as shown below.

Q: The attractive or repulsive forces between particles that are caused by their electric charges.

A: The attractive or repulsive forces between particles that are caused by their electric charges is…

Q: You are given a hammer a battery, a bulb, wires and switch(a) How could you use them to distinguish…

A:

Q: substances have a definite and unchanging chemical composition. Examples of substances are salt,…

A: Substance have a definite and unchanging chemical composition. Examples of substances are salt,…

Q: When you do a load of laundry, why do you not justdrop a bar of soap into the washing machine? In…

A: The reason can be given based on chemical kinetics, which deals with rates of chemical reactions and…

Q: How might the lack of a common nomenclature be a safety concern? What is a potential scenario in…

A: The lack of a common nomenclature is actually a safety concerns.  A molecule can have different…

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: The radius of a aluminum atom is 143 pm. How many aluminum atoms would have to be laid side by side…

A: Given : Radius of Aluminium atom = 143 pm And length of line to be made = 4.38 mm  Since 1 pm =…

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: 24 What apparatuses are used to carry out the following proe filtration distilla evaporation 25…

A: (24) For purification of different compounds or Substances, different type of equipments are…

Q: In 2009, a team from Northwestern University and WesternWashington University reported the…

A: (a) Convert 0.20 g/cm3 to mg = 200 mg/cm3 The volume of a 10.0-mg sample of this material can be…

Q: A student places 1.520 grams of copper wire along with excess sulfur into a crucible (and cover),…

A:

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: oxygen is not combustible is that a physical or chemical property?

A: Physical property is the property in which color, melting point, solubility, and state of the…

Q: If limestone is interacted with an acid, it liberates a gas made from: a. water vapor b. methane…

A: Limestone is the common name of the salt CaCO3. It reacts with acid to form corresponding salt along…

Q: A match is lit and held under a cold piece of metal. The followingobservations are made: (a) The…

A: Physical changes are those in which change is physical appearance takes place like smell, heat etc.…

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: True or false - The only way to charge an object with static electricity is by rubbing it against…

A: Static electricity is created by (friction) rubbing one object against another object as by rubbing,…

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: True/False Indicate whether the statement is true or false. Write T if the statement is true while F…

A: Buret is apparatus which is used for dispensing the solution used in titration.

Q: Out of zinc and tin whose coating is better to protect iron objects?

A: Given,  Out of zinc and tin whose coating is better to protect iron objects.

Q: Give an example of nanoparticles found in animals and discuss it briefly.

A: Nanoparticles are minute particles ranging from 1 to 100 nanometers in size. Nanoparticles exhibit…

Q: Why is the shape and size of nanoparticles important?

A: Nanoparticles: It is a very tiny particle. The range of these particles is in between 1 to 100…

Q: Four grams of the crystalline compound “A” dissolve in 100 mL of methanol at room temperature. At…

A: The solubility of compound A in 100 mLof methanol at room temperature is given to be 4 g while the…

Q: (1) Give to example of 1D Nano materials.

A:

Q: What do metals and nonmetals have in common? A both have high melting and boiling points B both are…

A: Metals are those elements which donate electrons. Non metals are those elements which accept…

Q: Examine the current state of research on the safety of products contain- ing nanoparticles.

A: Nanoparticles are now being used in the manufacture of scratchproof eyeglasses, crack- resistant…

Q: What separation method could you use to separate water from alcohol? *

A: Separation methods are those  techniques by which different compounds in a mixture are separated…

Q: Polyethylene terephthalate (PET) is used in plastic water bottles. A water bottle has a mass of 14.0…

A:

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: is stone a matter? why?

A: Matter: It is a substance that occupies space and has a certain mass. For example, if you consider a…

Q: What type of distillation do we use to separate a mixture of water and acetic acid and why?

A: Distillation is the process by which two liquids are separated from a mixture through evaporation…

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

A:

Q: what are the evidence that you made solid nanoparticles, make a summary.

A: GIven: The evidence that you made solid nanoparticles.

Q: , which among GaAs, LiBr, C, and Li will be the greatest conductor

A: Substance which has more number of ions have more electrical conductivity.  So, strong electrolytes…

Q: What is the chemical composition of crystals? More so, what vegetables and type of crystals may be…

A: Answer - According to the question -  Chemical composition of crystals - A crystal is a material…

Q: Metal or Nonmetal Explanation: State of Matter b. Metal or Nonmetal Explanation: Luster Metal or…

A: Metal : It is a type of solid substance which is a hard , shiny and very good conductor for heat…