uestions 1. Differentiate between homogen- eous and heterogeneous mixtures with examples.

Q: Calculate the amount of calories required to raise the temperature of 21.8 g of water from 8.5°C to…

A: Given,The mass of water =21.8 g.Initial temoerature of water = 8.5 oCFinal temperature of water =…

Q: A sample of an unknown hydrated compound weighed 16.450 grams. After heating, it had a mass of…

A: We have to calculate the percentage of water by mass in the unknown hydrated compound that weighed…

Q: The specific heat of lead is 0.13 J/g ^ C . How much heat (in J) is required to raise the…

A: Given that : The specific heat of lead (C) is 0.13 J/g°C. Mass of lead (m) = 109.5 g Change in…

Q: 4. The manufacturers of the aspartame-containing sweetener claim that one packet of their sweetener…

A: As we know that some compounds which are not sugars but happens to be much sweetner than glucose,…

Q: A 491.2g sample of calcium chloride has has what volume @STP? Use only the following units atoms or…

A:

Q: 5. Complete the following conversions 10.68 g to mg e. 2.00 in? to cm? b. 6.8 x 10* mg to kg c. 25.0…

A: According to our policy we should solve one question ( If any subpart present then we solve  first…

Q: Molar mass of sucrose = 342.3 g/mol ΔT = 2.14 °C qwater = 5.37 kJ qcal = 0.899 kJ Divide the mass of…

A: Given ,Molar mass of sucrose = 342.3 g/molΔT = 2.14 °Cqwater = 5.37 kJqcal = 0.899 kJObjective…

Q: Assuming that the natural gas is pure methane, CH4, write a balance chemical equation for the…

A: Given Reaction of methane with black copper oxide and red copper oxide to form copper metal , water…

Q: An empty beaker is placed on a balance, and its mass is recorded at 42.513 g. The beaker is removed…

A: In this question, we want to determine the mass of the sodium chloride solution ( NaCl )  You can…

Q: Rank the following quantities in order of decreasing mass.   Rank from highest to lowest mass. To…

A: Given masses:

Q: 2. A chemistry teacher searching for his golf ball in the trees this summer found a magical pool of…

A:

Q: You set up a simple distillation apparatus to distill 200 mL of sugar aqueous solution containing 20…

A: The objective of the question is to determine the boiling temperature of a sugar-aqueous solution…

Q: Match the description below with the following microscopic pictures. More than one picture may fit…

A: Answer:When two or more than two gases are present in a system then it is called as mixture of…

Q: 10. Give the number of the diagram below that represents a particulate view of (a) a mixture of…

A: If we put gaseous molecules in a container, they move randomly in container due to brownian motion…

Q: You are camping and need to cook all your food using your camp stove which runs off of propane. If…

A: Answer:In this problem first of all we will calculate the amount of energy required to heat up the…

Q: Set the things below into the categories of either pure,mixture, heterogeneous mixture,element, pure…

A:

Q: The nitric acid solution from part 1 is 70.0% acid and 30.0% water by mass. Using the accepted…

A: The density of Solution = 1.411 g/mL The solution has 70% acid and 30% water by mass. Let's say the…

Q: How will you separate the components of the following mixtures? Suggest a method and describe it.…

A: Mixtures can be separated using differences in physical properties to separate the components. The…

Q: 4. Classify each substance by composition, first as mixture (MX) or a pure substance (PS): sugar…

A: Sugar = PS , C                  As it is compound made of carbon , hydrogen and oxygen. Granite =…

Q: The great French chemist Antoine Lavoisier discovered the Law of Conservation of Mass in part by…

A: 1.

Q: Nitesh

A: The objective of the question is to determine whether Sample A and Sample B are pure substances or…

Q: Suppose you are measuring the mass of a solid sample on a balance using a weigh boat. You record the…

A: An instrument used to determine the weight of samples used in analysis is called a weigh balance.…

Q: Describe the characteristics of a mixture.

A: Matter is broadly classified into mixtures and pure substances. Pure substances are known for their…

Q: Consider the following properties: Mass, volume, density, boiling point, freezing point, and…

A: An intensive property is a physical property of a system that does not depend on the system size or…

Q: When there is going to be a frost in Florida, farmers will spray their crops with water before the…

A: When temperatures drop below freezing, ice crystals can form on the surface of crops. This can cause…

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.