Which statement describes the relationship between bond strength and the melting and bowling points of a substance?

Q: What is the difference between ohmic and non-ohmic conductors

A:

Q: For Non-ohmic materials, the V-I graph is a straight line Select one: True False

A: This statement is false for non ohmic materials that vi graph is a straight line .

Q: The flux commonly used in brazing is:   A) Ammonium chloride B) Borax C) Zinc chloride D) Resin plus…

A: Brazing is a joining process usually applied to metals in which molten filler metal (the braze…

Q: What technique should be used to dope an impurity into a metal?

A: Doping is the purposeful introduction of impurities into an inherent semiconductor for the goal of…

Q: a) energy is used for heating the water up to its boiling point, and the remaining energy used is…

A:

Q: Select True or False: The solubility of gases in water always decreases with increasing temperature.…

A:

Q: What factors affect the melting point of a metal?

A: The factor the affect the melting point of a metal is the attractive force between the molecules…

Q: 2 Luster, conductivity, and malleability are physical properties of metals. What makes these…

A: Given data: Luster, conductivity and malleability are the physical properties of metals.

Q: Determine the following products using the correct sign: 1.11. 1.2J.=.. 1.3 jxk=.. 1.4-4xk

A:

Q: Bonds What kind of chemical bond is formed when electrons are transferred from atom to atom (when…

A: When electrons are transferred from one atom to another then the atom which loses the electrons gets…

Q: consists of two junctions of two different metals Thermopiles Thermistors O Thermocouple O

A: The junction is the point from where the temperature is measued.

Q: Which equation below is correct? O (H+] - [OH-) - 1.0E-14 O (H+] / (OH-] -1.0E-14 O (H+][OH-] =…

A: Solution:

Q: Analyze the results of a surface tension experiment and explain hydrogen bonds role to this property

A: Surface tension is the property of a liquid to behave as of its surface is enclosed in an elastic…

Q: Hexagonal-closed packed and face-centered cubic structures are considered as the most highly dense…

A: Answer In hcp the structure repeat  itself after every two layers. The stacking of hcp may be…

Q: What would be the empirical formula of: a) sodium chloride; b) ethanir; c) hexane.

A: The empirical formula is associated with the short ratio of compound of molecule.

Q: Which property of metals enables production of metallic foils? A) Malleability B) Ductility C)…

A: Malleability is the property of the metal so that it can beaten into the form of thin sheets or…

Q: What is a property of most metals? A) Conductivity B) Malleability C) Luster D) All of the above

A: Properties of metal separated into two:    One is Physical properties and another one is chemical…

Q: Which statement describes the relationship between bond strength and the melting and boiling points…

A: Since higher bond energy reflects higher melting and boiling points.

Q: 50 grams of KCl are dissolved in 200 grams of water at room temperature. Is the resulting solution…

A: We need to tell whether the resulting solution is unsaturated, saturated or supersaturated.

Q: Why is it that only sulphide ores are concentrated by ‘froth floatation process’?

A: Froth flotation is one of the most popular operational processes for mineral beneficiation. In…

Q: What is the chemical symbol for:      a,  sodium       b.  bromine       c.  silver       d.…

A: Chemical symbol for

Q: When solid copper and zinc are mixed to form the metal alloy brass, what kind of mixture results?

A: Alloy is formed by mixing two or more materials together. It can be homogeneous or heterogeneous.

Q: The hydroxyl radical OH is good for Select one: O Increasing the rate of adsorption O Removing salt…

A: To determine: The correct option. Binary conversion of 51.

Q: The equations below describe the conversions between the three scales: K= C + 273 15 F = 95 C + 32…

A: Given: Boiling point of Octane TbO=126 oC Boiling point of ethanol TbE=173 oF

Q: b) Complete the table below LIQUID Benzene (20°C) Surface Tension (N/m) Blood (37°C) Glycerin (20°C)…

A: Surface tension is calculated by,                          S = ρhga2 Here, S is surface tension…

Q: The solubility of a gas in a liquid is: A) increased with increasing pressure B) decreased with…

A: Explanation: The solubility of a gas in a liquid decreases with an increase in temperature as the…

Q: You have discovered an element that is a poor conductor of electricity, has a low melting point and…

A: The discovered element is a Poor conductors of electricity, has a low melting point and is a gas at…

Q: Metals can be given different shapes according to our needs because they posses the properties of:…

A: Metals can be given different shapes according to our needs because they posses the properties of…

Q: Metals are good conductors of electricity because   A) The atoms are lightly packed B) They contain…

A: Electricity is defined as flow of electric charge which means that material can conduct electricity…

Q: All of the following are bases except A. NaOH B. Al(OH)3 C. HBr D. Ca(OH)2

A: Given : Four options and to identify the acid from the list.

Q: The relative density of a substance is the ____.   A) ratio of its density to the density of water…

A: The relative density of a substance is the ratio of its density to the density of…

Q: Differentiate ohmic and non ohmic materials

A: The material that obeys Ohm’s law is said to be an Ohmic material. While the material that does not…

Q: Carbon and oxygen, both nonmetals, bond to form a compound. What is the name of the carbon compound…

A: With one carbon and two oxygen The molecule will be Carbon dioxide.

Q: Directions: Differentiate ohmic materials from non-ohmic materials and give examples on each.…

A: Ohm's law Ohm’s law states that the "voltage across a conductor is directly proportional to the…

Q: Diamond does not conduct electricity, because   A) It's structure is very compact B) It is of…

A:

Q: Barium ions carry a 2+2+ charge, and nitrogen ions carry a 3−3− charge. What is the chemical…

A: charge on barium = + 2charge on Nitrogen = -3N-3 * Ba+2

Q: Walking is an example of a. a catalyst. b. kinetic energy. c. matter. d. potential energy.

A: To discuss in category of energy that walking lies.

Q: Why is it incorrect to speak of a molecule of solid NaCl?

A: Required : Why is it incorrect to speak of a molecule of solid NaCl.

Q: Describe the use of an ohmmeter

A: Explanation: An ohmmeter is an instrument that is used to measure electrical resistance, the…