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

Q: Which of the following items is a chemical property?     the melting and boiling point of water…

A: Given:- Which of the following items is a chemical property?       the melting and boiling point…

Q: Which one of the following elements is a poor conductor of heat and electricity? iron lead fluorine…

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Q: a substance has particles that are close together with no regular arrangement. the particles vibrate…

A: The objective of the question is to identify the state of matter of a substance based on its…

Q: Based on the information given, classify each of the pure substances as elements or compounds, or…

A: A question based on compounds. 11 substances are prescribed that are to be classified into element…

Q: For each of the substances listed below, determine whether they would exist as a solid, liquid, or…

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Q: Which separation method is better suited for separating a solution of sugar and water into pure…

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Q: Which of the following is not an example of a chemical property and why? 1. An iron nail will rust…

A: Among the given processes, the process which is not an example of chemical property is, Sugar will…

Q: Which of the following is a list of homogeneous mixtures? O Vanilla ice cream, black coffee, plain…

A: This question is related to mixture. There are two types of mixtures- homogeneous heterogeneous…

Q: Which of the following is NOT a physical change? making a snowman burning sugar bending a steel rod…

A: We have been given five options and we have been asked which of the given changes is not a physical…

Q: Which of these is a chemical property?    Ice melts at 0 degrees C. Helium is very non-reactive…

A: Chemical Properties are properties that form any other new chemical entity in some sort of reaction…

Q: Decide whether each sketch shows a pure sample of an element or a pure sample of a compound.…

A: Compounds are species that are formed by bonding chemically with two or more elements of the…

Q: The following particulate-level diagram best represents a(n).

A: The diagram given is,

Q: Consider the following separations of materials. State whether a physical process or a chemical…

A: Physical changes are those process which do not give a new product usually these are reversible…

Q: The metal alloy such as the silver-colored hubcap cover of a carwheel is an example of heterogenous…

A: Homogeneous mixture: Homogeneous mixture contains one phase and has a uniform composition throughout…

Q: A sample of granite contains various oxides of silicon, aluminum, sodium, potassium, calcium, and…

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Q: If matter is uniform throughout, cannot be separated into other substances by physical processes,…

A: Answer:- This question is answered by using the definition of element which is form of matter which…

Q: Briefly discuss the difference between a homogenous mixture and a heterogeneous mixture.

A: When different substances mix to form a uniform mixture in same phase , then it is called…

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.