Q2. Which property of trinitrotoluene (TNT) is most likely a chemical property?(a) Yellow color(b) Melting point is 80.1 °C(c) Explosive(d) None of the above

Q: whats the difference between homogeneous and heterogeneous mixtures?

A:

Q: Suppose a teaspoon of magnesium filling and a teaspoon of powdered sulfur are placed together in a…

A: MIXTURE : Mixture is defined as the physical combination of two or more different substances such…

Q: Which of the following is a physical property .A O platinum metal does not react with hydrochloric…

A:

Q: Which of the following is not a chemical change? A. burning coal B. making bread rise using baking…

A: A chemical change is a change in which the initial compound is having different structure or formula…

Q: What is correct from multiple choice

A: Since the reactions in which only the physical properties of reactants change and no change in…

Q: Copper melts at 1083 °C, has a density of 8.92 g/mL, is a good conductor of electricity, and turns…

A: Chemical property is the ability of a substance to undergo a specific chemical change. These…

Q: whats the differerence between 24k gold being a substance and element and 14k gold being a mixture…

A: Differerence between 24k gold and 14k gold:

Q: How do molecules of elements and molecules of compounds differ? In what ways are they similar?

A: Given compounds,        Molecules of elements        Molecules of compounds

Q: Which of the following categorize the "Water freezes at O0C" as the property of matter a.) Intensive…

A:

Q: Dermatologists use liquid nitrogen to freeze skin tissue. If the Celsius temperature of liquid…

A: The given data contains,  Temperature = -196°C

Q: 24- Of the following propositions the one that illustrates a chemical property is:Unique option.…

A: Chemical property :-  A property of the substance which involve the formation of a new substance by…

Q: You are hiking in the mountains and find a shiny gold nugget.It might be the element gold, or it…

A: The phisical properties that are given are: appearence  melting point  density physical state.

Q: Which of the following is not a physical change? Frying an egg Boiling water Liquefying oxygen…

A: Physical change is the process where the apperance of the matter or the state of matter changes. But…

Q: A glass of cold milk is an element, a compound, a homogeneous mixture or heterogeneous mixture?

A: A glass of cold milk is an element, a compound, a homogeneous mixture or heterogeneous mixture?…

Q: Q1. Which substance is a pure compound?(a) Gold (b) Water(c) Milk (d) Fruit cake

A: Pure substances can be defined as the compound or an element where an element is a pure substances…

Q: A student mixes some soap with water and then blows through a straw into the solution. is it a…

A: Physical changes are those which do not involve any chemical reactions to be taking place only the…

Q: (a) Read the following description of the element zinc andindicate which are physical properties and…

A: Indicate the physical and chemical properties of zinc from the given description. Zinc melts at 420…

Q: All of the following are properties of sodium. Which one is a physical property of sodium?   A.…

A: Physical properties are those properties which resemble state of a substance, its shape, size and…

Q: Questions shy? 1. We often feei cold immediately after taking bath. Explain. 2. Why does morning dew…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Is baking considered a physical change or a chemical change?

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Q: Classifaction

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Q: Sound, light, feelings and ideas are not considered to be matter. Which of the following best…

A: Why sound , light, feelings and ideas are not considered to be matter?

Q: How much heat, in Joules, is absorbed by 60 g of water in order to increase in temperature from 23°C…

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Q: Hi, please choose which of the two substances has the property lis

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Q: Is sugar an element or a compound? C12H22011 Is water an element or a compound?

A: An element contains same type of atoms. A compound contains different types of atoms.

Q: Which of the following is a pure substance? baking soda salt water cooking oil duct tape orange…

A: Pure substances are compounds with individual chemical and physical properties with same…

Q: What is physical property and chemical property?

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Q: Which of the following processes is a physical change? (a) evaporation of water; (b) combination…

A: In physical change, there is no change in the chemical composition.

Q: Which of the following categorize the "Salt and refined sugar are both white in color" as the…

A:

Q: Which is a property of a nonmetal? A. Poor conductor of electricity B. Solid at room temperature C.…

A: We know that a nonmetal is Poor conductor of electricity

Q: You're in a diet that calls for eating no more than 1200 Cal/day. What is this energy in joules?

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Q: - Which of the following are chemical changes? Which are physical changes? - a. the cutting of food…

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Q: Which of the following is a physical property? O chlorine gas will not burn O chlorine can be used…

A:

Q: Which of the following is a pure substance?? Air Sand Salt water Gold

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Q: Which is of the following is an example of a physical property? O CO is poisonous O water freezes at…

A:

Q: Which of th following are chemical changes? and which are physical changes? making syrup by heating…

A: Here, we have to identify that the given process is a chemical change or physical change.

Q: Q2. Explain the following changes in states of matter. Write two examples for each. (a) Boiling (b)…

A: States of matter

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A: 1 Question: Physical property: This is the property, which we can observe with our naked eyes with…

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A: A mixture is defined as a material made up of two or more different substances that are not…

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A: Water transport many materials through rivers , seas , canals etc.

Q: Is the process of bananas ripening a chemical change or a physical change? Explain.

A: A Physical change is defined as a change that results in a change in the physical appearance of the…

Q: Is the boiling point of a chemical a physical property or chemical property?

A: Boiling point of a liquid is defined as the temperature at which vapor pressure of the liquid…

Q: Indicate for the examples below if the change is physical (P) or chemical (C) 1. milk turns sour…

A:

Q: What is the difference between a physical property and a chemical property?

A:

Q: 1.18 You are hiking in the mountains and find a shiny gold nugget.It might be the element gold, or…

A: Given: To determine the physical properties such as appearance, melting point , density or physical…

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.