State whether the following will sink or float when dropped into water. (a) wax (d = 0.90 g/cm³) (b) marble (d = 3.5 g/cm³

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

A:

Q: If the temperature increases, does the motion of particles increase or decrease?

A: Interpretation - If the temperature increases, then motion of particles increase or decrease is to…

Q: State the density of water in grams per milliliter.

A: Interpretation - The density of water in grams per milliliter is to be explained.

Q: non-matter

A: Non–matter –There are mostly those things around us that have mass and occupy space. But there is…

Q: Which of the following is the correct description of theinside of a grapefruit?(a) It is a pure…

A: Given fruit,           Grapefruit

Q: Which of the following is an inexact quantity?(b) the mass of a penny

A: The numbers obtained by measurement are always inexact quantity.

Q: Which physical state is described as having particles closely packed and held rigidly in position?

A: There are three physical states present, namely, solid, liquid and gases. Each state has different…

Q: nen equal volumes of the following pairs of liquids are mixed thnoroughly and allowed to stand,…

A: ANSWER IS

Q: Suppose that instead of using the cylindrical rod of Example 1-2 to prepare a 1.000 kgmass we were…

A: The volume of a spherical ball will be directly proportional to the cube of the radius of the…

Q: Difference between minor and major constituent

A: A question based on solution that is to be accomplished.

Q: All molecules attract each other to some extent,and the attraction decrease as the distance between…

A: Intervention between the particles depends upon the distance present between them. As stated in the…

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

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

Q: What is the SI unit of volume? What is the other common unit which in notan SI unit of volume.

A: The SI unit of volume is m3

Q: Which of the following is a liquid nonmetal under normal conditions: sodium, mercury, -bromine, or…

A: Non-metals have less tendency to lose the electrons. They are highly electronegative in nature and…

Q: Which of the following diagrams represents a homogeneous mixture?

A: Given diagrams: We have to find the diagram that represents a homogeneous mixture.

Q: The state of matter that has no definite volume or shape is

A: Answer : Gas Explanation : Gas has no definite volume or shape. Because gas molecules has less…

Q: Liquids and gases take the following characteristic(s) of their containers. Which is/are it?…

A: Generally there are three types of substances solid, liquid and gas.

Q: Which of the following is a solid metal under normal conditions: calcium, phosphorus, mercury, or…

A:

Q: Match the following terms with appropriate definition

A: In order to match the options with the correct categories, we have to know the definitions and the…

Q: olecule in units

A: Dear student I have given answer to your question in the image format.

Q: physical and chemical changes is

A:

Q: Which is an example of fuel that takes the shape of container and has definite volume?

A: The fuel that takes the shape of container and has definite volume, it should be in liquid phase.

Q: TWO agueous solutjons of BaloH and MgBra are mixed. write Out whet major chemical speces will e…

A: This is an example of double displacement reaction.

Q: Which of the following is not an example of a homogeneous mixture? Select any that apply: - Sugar…

A: Concept Introduction: Homogeneous mixture: A mixture throughout the solution in which the…

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

A: Interpretation: The amount of heat, in joules absorbed by 60 g of water in order to increase in…

Q: ppen to the temperature?

A: Ideal gas equation,  PV = nRT  At constant volume,  Temperature is direactly proportion to pressure…

Q: Which of the following best describes the system depicted in the diagram? Mixture of elements…

A: We have to say about the diagram.

Q: If limestone is interacted with an acid, it liberates a gas made from: a. water vapor b. methane…

A: Limestone is the common name of the salt CaCO3. It reacts with acid to form corresponding salt along…

Q: Melting point of fat is and melting point of oil is

A: Fats and oils are mixtures of triglycerides. Chemically, triglycerides of unsaturated fatty acids…

Q: Which of the following is not a form of energy?

A: Capactity to do work is called energy various types of energies are   1. Thermal energy   2.…

Q: What is the substance undergoing a chemical or physical change known as?

A: A substance undergoing a physical or chemical change known as reactant. reactant is the substance…

Q: If salt dissolves in water, is it a chemical or physical change?

A:

Q: Which of the following BEST describes molecules in liquids? A. Can be readily compressed B. Has…

A: Anything that occupies space and has mass is called matter. Now, on the basis of physical state, the…

Q: Which of the following is an element: Brass Zinc Steel             D, Bronze

A: An element is the simplest form of pure substance. On the other hand, a mixture is made up of…

Q: Water is classified as a(n) a. atom. b. element. c. mineral. d. compound.

A: Is water is atom, element, mineral or compound has to be given.

Q: What is the minimum mass of ilmenite (FETIO,, a titanium ore, from which 135. g of pure titanium…

A:

Q: Elemental bromine is a dense, dark red, strong-smelling liquid. Are these characteristics of…

A: All the above mentioned properties are physical properties of elemental bromine.

Q: Label the following property of sodium as either a physical property or a chemical property:

A: chemical and physical properties are used to identify the elements. chemical properties determines…

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

A:

Q: What common state of matter has a definite volume but indefinite shape? liquid

A: Generally there are three states of matter , Solid , liquid and gas

Q: emalt temperature of 0°C equal to in Kelvin?

A: Temperature definition :    With the reference of standard value, measuring the warmth and coldness…

Q: UNA Which of the following statements are incorrect? 4. a) The state of matter for an object that…

A: There are three phases of matter. The phase of matter can be interchanged by changing the…

Q: , which among GaAs, LiBr, C, and Li will be the greatest conductor

A: Substance which has more number of ions have more electrical conductivity.  So, strong electrolytes…

Q: which macroscopic characteristics differentiate solid liquid and gas

A: Macroscopic characteristics are those which are visible to the naked eye and not microscopic in…

Q: Which of the following is an example of a chemical property?

A: Chemical change: When a compound combines with another compound to form a new product is known as…

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.