Which of the following is correct? Gold nanoparticles are non-metals Gold nanoparticles are metals Gold nanoparticles are semiconductors Nanoparticles are between 1 and 100 mm in size

Q: In terms of mass, calculate the percentage of the active ingredient for each of the following…

A: Mass percentage is defined as the total mass of the substance( here active ingredients) divided by…

Q: Which of the following items is a physical property?     the combustion of gasoline     the…

A: Whthe following items is a -       the combustion of gasoline - Chemical property   the corrosive…

Q: 6. Give a clear description of how you would separate the following mixtures: a. Sugar from water b.…

A: a) We have to separate Sugar from water  : The easiest way to separate a mixture of sugar and water…

Q: Which of the following is not a property of metals? They are good conductors of electricity. A They…

A: The question is to identify which of the of given properties is not a property of metal -

Q: Which of the statements describes a chemical property? Helium is the lightest monatomic element.…

A:

Q: Indicate whether the following sample of  matter  is a heterogeneous mixture, a homogeneous mixture,…

A:

Q: What are the difference between the properties of Metal and the properties Ceramics materials? use…

A: Please find your solution below : Metals are the elements that are generally opaque, lustrous and…

Q: :Q3: (Material scale) - choose the correct answer Atomic-scale Nano-scale Micro-scale Macro-scale…

A: An object constitutes the mixture of substance is termed as material. These are categorized  based…

Q: What are the difference between the properties of Metal and the properties Ceramics materials? use…

A: Metals are solid substances that are opaque in appearance and have a high electrical conductivity.…

Q: 11. Which of the following nanomaterials is a class of naturally occurring nanomaterial? Choose…

A: Naturally occcuring nanomaterials can be found in volcanic ash, ocean spray, fine sand and dust,…

Q: Which of the following is part O glass collection tubes a power source thormo meter

A: Hofmann apparatus used for  electrolysing  water and  it is invented  by August  Wilhelm Von…

Q: Which term listed is a property of a non-metal?  high density brittle shiny  conducts electricity

A:

Q: The following is an example of a physical change: O formation of rust O production of energy by…

A: Physical change: In a physical change only the state of matter changes. In this change different…

Q: Complete the sentences by crossing out the words that are wrong. The first one has been done for…

A:

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: Which of the following processes require(s) chemical methods?    Separating a heterogeneous mixture…

A: Breaking a compound into its constituents elements requires chemical method. The two or more…

Q: Copper vessels kept for a long period of time get coated with a greenish substance. This greenish…

A: Given,  Copper vessel kept for a long period of time get coated a greenish substance. This greenish…

Q: a) upon heating, a blue powder turned white and lost mass b) A white soil forms three different…

A: Given: For each of the changes have to decide whether two or more elements formed a compound or if a…

Q: List the Metals on the Nanoscale?

A: The list Metals on the Nanoscale has to be given,

Q: Which of the following substances is the best conductor of electricity? diamond, C quartz, SiO2…

A:

Q: Classify substance as a pure substance or a mixture. If it is a pure substance, classify it as an…

A: A compound is a substance is made up of two or more different elements combine together by a…

Q: A) Which term describes the conversion of substances into different substances? ionic bonding…

A: Conversion of one type of substances into other substances is take place through a reaction.

Q: Are the following statements correct? If not, fix them A compound is a pure substance that has…

A: A compound is a component formed by the combination of two or more than two elements. It's made up…

Q: Which of the following represents a chemical property of hydrogen gas? O It is not a liquid at room…

A: Chemical properties:  The capacity of a substance to undergo a chemical change during the reaction…

Q: Classify each of the listed properties of isopropyl alcohol (also known as rubbing alcohol) as…

A: Physical properties can be measured or observed without changing the identity of the substance.…

Q: In addition to iron, stainless steel contains:(a) nickel and chromium(b) Copper and tin(c) aluminium…

A: An alloy is a combination of a metal with at least one other metal or nonmetal. The combination must…

Q: Choose the INCORRECT statement. Select one: a. An element is a substance made of one type of atom.…

A: Option a is correct because a element is a substance made of one type of atom.  Ex: Carbon is a…

Q: Identify as an element, compound or mixture of compounds

A: Element: Element is a chemical substance which has a single atom and it cannot be broken down in…

Q: Classify each of the following processes as either a physical change or a chemical change: A piece…

A: Physical change: In the physical, the state of matter is changed. In this change no chemical…

Q: Manganese Sulfate +   Aluminum Phospate

A: Given incomplete reaction is :  Manganese Sulfate +   Aluminum Phosphate ------------> ?…

Q: 1. Which of the following is NOT a pure element Nitrogen Carbon Dioxide

A: Pure substances :- Pure substances consist of single type of particles. Pure substances can be…

Q: Although some elements are found in an isolated state, most elements are found combined as with…

A: The objective of the question is to find the correct option which describes the statement and fills…

Q: A substance composed of 2 or more elements in a fixed, definite proportion is considered a…

A: Answer :- Option C is correct answer.    Compounds   Compounds are made up of two or more elements…

Q: 22. Energy is not considered a form of matter. Which of the following reasons correctly explains…

A: Matter: This is a part of universe. Matter is has measure the mass. Matter has own volume .  Energy:…

Q: Which of the following substances can be separated into simpler substances only by chemical means?…

A: Given options out of  which can be separated into simpler substances are   a. gold b. water c.…

Q: The uses of elements depend on their propertie Iron in cooking p Carbon im wood

A: We use elements according to their properties in certain areas.  We can look at the properties of…

Q: Classify these properties of the metal lithium as physical or chemical. Physical Chemical

A: In the given question we have to classify the physical and chemical properties of lithium metal.…

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: Which of the following used to be more precious than gold or silver, due to difficulties in refining…

A: The metal that was more precious than gold or silver due to difficulty in refining it was Aluminum…

Q: Blue beads (Al): Yellow beads (S): Green beads (0):

A: FORMULA Al2 (SO4 )3 Al=2 atoms S=3 atoms O= 12 atoms     blue beads Al= 2 yellow beads S=3 green…

Q: Which of the following would be heterogeneous?      A mixture of sand and water.      A mixture…

A: A heterogeneous mixture is a mixture with non-uniform composition or we can say it contains two…

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

A:

Q: Fill in the blanks by writing the name of the definition: _________ is a substance made up of only…

A: Matter classified into element compound mixture

Q: Describe how Goldsmith rules are used to classify Elements

A:

Q: All of the following are properties of zinc. Which is NOT a physical property. It corrodes with…

A: In this question, we will select the statement which is not a physical property that means it is a…

Q: Which of these is a property of metals? O It's very brittle It's malleable O They are used in food O…

A: Metals :-  Solid substances which can form cations readily by losing electrons and form lattice in…

Q: Graphene is a __________? a. metallic nanomaterial b. carbon nanomaterial c. quantum dots d.…

A: Graphene exist as single layer of atoms arranged in two dimensional lattice.

Q: Which of the following used to be more precious than gold or silver, due to difficulties in refining…

A: The metal more precious than gold or silver, due to difficulties in refining is given below.