Which of the following is a physical change? Choose all that apply. O a. rusting of a metal can Ob. melting ice O c. digesting a candy bar d. burning wood U e. evaporating ethanol

Q: What is the physical state in which matter has a specific volume but does not have a specific shape?…

A: We have to predict the correct state of matter.

Q: . A chemist mixes sodium with water and witnesses a violentreaction between the two substances. This…

A: The given statement is   A chemist mixes sodium with water and witnesses a violent reaction between…

Q: Which of the substrates below is the most reactive towards nucleophilic aromatic substitution…

A:

Q: Which of these statements is TRUE about physical states? a. A solid is compressible b. The only…

A: a) Solids is that physical stage which are have particles packed very densely. Since the particles…

Q: Consider the following reaction: COCI2 (2) = CO + Cl2 (g) Keg = 8.33 x 10-4 (8) The reaction vessel…

A:

Q: A sick child has a temperature of 41.2°C. What is the child's temperature in Fahrenheit? O a. 106.16…

A:

Q: All of these are examples of chemical properties except:   A. Density  B.Solid formed   C. Color…

A: We need to determine which of the given properties is not a chemical property

Q: Is the following transformation representative of a physical change or a chemical change? see photo…

A: Physical change: The change of state of matter is known as a physical change. In this change…

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

A: Baking is a process in which item to be baked is mixed with baking soda and heated in oven. Baking…

Q: Which is the best example of a pure substance: O A. elements B. compounds C. pure water D. carbon…

A: Introduction: Pure substance is a homologous material which contains particles ( atoms or molecules)…

Q: 1) Which of the following is chemical property? A. Objects made of silver become tarnished. 3+ B.…

A: Chemical property of a substance is the property that observed after or during the chemical…

Q: why or why not does a golf ball fit the definition of matter?

A: Solution:      Matter is everything we see around us which has a mass and occupies space.Matter has…

Q: Which of the following would indicate a physical change has occurred? O Bubbles are produced State…

A: Answer :-  State of matter changes (ex. water becomes steam)…

Q: 5. Hydrogen chloride is decomposed by an electric current to hydrogen (H2) and chlorine (Cl2). Is…

A: The solution is given below -

Q: Classify the following as either pure substances or mixtures. If it is a pure substance, state…

A: In the above problem we have to determine a substance is pure or mixture.homogeneous mixture or…

Q: 3. Which of the following states of matter has a fixed volume and a fixed shape?

A:

Q: Which of the following properties describes a liquid? A. Particles are less rigid so they are able…

A: Here, we have to find the statement that describes the property of a liquid.

Q: Calculate the amount of heat needed to boil 96.0 g of ethanol (CH₂CH₂OH), beginning from a…

A:

Q: 32. Which of the following is a Physical Property of a substance? A) Burning of gasoline B) Cutting…

A: Physical property is measurable. Physical property doesn't change nature of substance. While…

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.