What kind of system is the coffee held in a cup?

Q: 100-1000uL Pipette, what is the lowest volume that you would feel comfortable pipetting? Why?

A: Pipette is laboratory tool commonly used in chemistry to transport a measured volume of liquid,…

Q: List the names of the various changes of state for a pure substance?

A: Pure substances in chemistry are those that consist of only one kind of particles. It can be further…

Q: Is paper clip steel more dense or less than water

A: Is paper clip steel more dense or less than water.

Q: Which of the following is a pure substance existing as different phases in a heterogeneous system?…

A: The correct option is as follows:

Q: How many grams of aspirin are contained in a 325-mg tablet?

A: Given data, The mass of the aspirin = 325 mg. To calculate the number of grams of aspirin.

Q: Describing the relationship between the melting time for an ice cube and amount of salt sprinkled on…

A: The freezing point depression is the one that results in lowering of freezing point of the pure…

Q: Which is NOT directly attributable of property of water? A. The top of a lake freezing B. The…

A: Some important Characteristics of water  (1). polarity, (2). cohesion, (3). adhesion, (4).…

Q: When oil and water are mixed together they form a (an) a. Homogeneous mixture b.…

A: When oil and water are mixed together, they form a Heterogeneous mixture. Heterogeneous mixtures are…

Q: A vanilla milkshake at a restaurant contains 542 calories. What quantity of energy is in this shake…

A: 1 kilocalories = 4184 joules1 calorie = 4.184 joules.

Q: How does a state describe the macroscopic view of the system?

A: How does a state describe the macroscopic view of the system has to be given,

Q: how would you seperate a homogeneous solution of table salt and water into its components?

A: Evaporation: It is the process, which involves transformation of liquid water to water vapour.

Q: Illustrate the differences between the three common states of matter?

A: Differentiate the three common states of matter. The matter is everything that takes up space and…

Q: he energy change?

A:

Q: Why are gases compressible?

A: The reason for gases are compressible has to be given.

Q: Enter an equality for the following medication in stock: 150 mg of Clozapine per 1 tablet of…

A: The fractions of any equality in which the quantity of equality is written in numerator or…

Q: 115. This molecular drawing shows images of acetone mol- ecules before and after a change. Was the…

A: Physical properties are the properties of a compound which can be measured and determine the state…

Q: What are the 4 states of matter?

A: To identify: 4 states of matter.

Q: A peanut butter and jelly sandwich contains 430 calories. How many joules are in the sandwich?

A: A calorie is a unit of energy that is generally employed in nutrition. The main definition of a…

Q: What are the phases of matter?

A: The phases of matter has to be given.

Q: 1. A candle is placed on one pan of a balance, and an equal weight is placed on the other pan. What…

A: Note - Since you have asked multiple questions, we are bound to solve only the first question for…

Q: What misconceptions do you have about ENERGY?

A: Energy of a body is ability to do work. It includes chemical energy, kinetic energy, potential…

Q: How many calories 5000 Joules are?. No computation, no points

A: There are different units of heat-  1- joule 2- calorie

Q: olecule in units

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

Q: ng kinetic energy

A:

Q: normality

A: normality is defined  as the number of gram or mole equivalents of solute present in one litre of a…

Q: Density is a very useful intensive characteristic property of matter. Why?

A: A question to describe about importance of density as the characteristic property.

Q: Which of the following is the state of matter that exists at 30°C and 1 atm?

A: State of matter depend on nature of material for example . Water is in liquid state at 30°C…

Q: ppen to the temperature?

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

Q: In a solar box cooker sunlight falls on the and the food gets cooked by absorbing heat energy.

A: Mirror is used in a solar cooker to increase the radiation input on the absorbing space and is fixed…

Q: What is matter

A: There are number of things or objects present around us, that is, in our surrounding.  For example,…

Q: Hi im still confused how you get the values from the grap

A: As per the given values of K and T, lnK is computed and then a graph is plotted between lnK vs 1/T

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: Why Are Units So Important?

A: Units: These are expressions of parameters that are used to express any measured parameter or…

Q: 1. Two pans of water are on different burners of a stove. One pan of water is boiling vigorously,…

A: The amount of energy required to convert some amount of liquid water to gas or steam at constant…

Q: What type of system is a covered glass of milk?

A: Solution- type of system is a covered glass of milk.  Its is close system..

Q: 1. In the following heating curve, which segment represents a freezing and melting?

A: Since we know that freezing point is the temperature where liquid state change to solid state  And…

Q: Define the term unit conversion problems?

A: Unit conversion: It is defined as the conversion of units of some measurements into another units.…

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: A change in an adjective in a specific direction is an increase or decrease across a single cycle or…

A: The above given statement is related to the periodic table which is an easiest way for the…

Q: assumes that particles are not attracted to each other. Which property of liquids proves this…

A: Answer

Q: A dose of 240 mg of acetaminophen is prescribed for a 20-kg child. How many mL of Children’s Tylenol…

A: Given that: mass of acetaminophen = 240 mg mass of acetaminophen in Tylenol = 80. mg /2.5 mL To…

Q: a) Define melting point. b) Is melting point a physical or chemical property of matter?

A:

Q: How would you define conceptual problem solving in your own words?

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: the normality

A:

Q: A change of kinetic energy of molecules create what property change in a body?

A: A question based on kinetic energy of molecules, which is to be accomplished.

Q: A 20.0 mL sample of glycerol has a mass of 25.2 grams. What is the mass of a sample of a 63-mL…

A:

Q: Fresh milk separates spontaneously into cream, which floats to the surface with a watery layer…

A: Fresh milk separates spontaneously into cream, which floats to the surface with a watery layer…

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.