Ctrl + F is the shortcut in your browser or operating system that allows you to find words or questions quickly.
Ctrl + Tab to move to the next tab to the right and Ctrl + Shift + Tab to move to the next tab to the left.
On a phone or tablet, tap the menu icon in the upper-right corner of the window; Select "Find in Page" to search a question.
Share UsSharing is Caring
It's the biggest motivation to help us to make the site better by sharing this to your friends or classmates.
Covers the nature and composition of matter, solutions, chemical reactions, equilibria, thermodynamics, and electrochemistry with engineering applications.
Compute the area given the following measurements: 2.0546 cm and 4.3 cm. Express the answer in significant figures.
Dalton's law of partial pressure states that constant _____________ and volume, the total pressure of a gas is directly proportional to the number of moles of gas present.
What is defined as the described as the sum of the internal energy and product of pressure and volume in a system?
Iron, Fe, has an atomic mass of 55.85 amu therefore, the molar mass of Fe is 55.85 g/mol.
What is the mass percent of Hydrogen, H, in resveratrol?
The difference between the mass number and the atomic number equals the number of ________________ in an atom.
Gases take up volume and shape of its container, are considered the least compressible state of matter and have the lowest density compared to solids and liquids.
Resveratrol, C14H12O3 is a compound usually found in grapes and some berries. The molar mass of this compound is 228.26 g/mol. How many moles of resveratrol are in 600 grams of sample?
A percent yield of 100% is impossible to attain in the laboratory.
How many significant figures are in 0.00002?
Which of the following is true regarding specific heat?
Which of the following statement is true regarding balancing chemical equations?
What is defined as the amount of heat needed to raise the temperature of 1gram of the substance by 1K or 1C?
Which of the following statement is not true regarding kinetic molecular theory?
Which of the following increases as work increases?
Higher temperature in gas means higher ____________.
The percent composition by mass of ferrous sulfide, FeS, is 50% Fe and 50% S.
Accuracy is a measure of how closely individual measurements are to the actual or true value, while precision refers as to how closely individual measurements are to one another.
___________________ is a combination of Boyle's, Charle's and Avogadro's laws.
In a balanced chemical equation, the number of atoms of an element on the left side is always equal to the number of atoms on the right side.
As long as we use stoichiometric amounts of reactants in a reaction carried out in the laboratory, we are guaranteed to get the theoretical yield of the reaction.
How many significant figures are in 4.0300 x 103 g?
The empirical formula of an unknown compound was determined to be CH2O. A separate analysis to determine the molar mass was done. Results show that the molar mass is 360.36 g/mol. What is the molecular formula of the unknown compound?
How many atoms of oxygen are in 1 mole of Resveratrol?
Charle's Law states that at a constant pressure, the volume of a fixed amount of gas is inversely proportional to its absolute temperature
Which gas law states that at a constant temperature, the volume of a fixed amount of gas is inversely proportional to its pressure?
Positive ΔH means that heat is lost from the system into its surroundings, while negative enthalpy ΔH means that heat is absorbed by the system from its surroundings
Which ion is not correctly named?
Using the periodic table, which element is in Group 4A period 6?
Partial pressure is defined as the amount of pressure exerted by each component gas in a mixture, which is independent of the pressure exerted by the other gases.
The internal energy of a system increases when heat is applied of work is done into it.
How many moles of Al is needed to produce 4 moles of Al2O3
Which of the following statement is correct?
Molar heat capacity is the amount of heat needed to raise the temperature of 1 mole of a substance by 1K or one degree celsius.
Copper, Cu, has two stable isotopes, 63Cu with atomic mass of 62.9 amu and 65Cu with atomic mass of 64.93 amu. The average atomic mass of Cu is 63.54. What are the percent abundances of the two isotopes?
Which of the following statement is true regarding Ideal Gas Law?
Which gas law states that at at constant temperature and pressure, volume of gas is directly proportional to the number of moles of gas present.
If 2 moles of AB4were made to react with 2 moles of C2, 1 moles of AC2 will be produced.
What is the mass number of an atom that has 2 protons, 2 electrons and 4 neutrons?
Pressure is defined as the effect of a force applied to a surface and can be measured by means of a barometer or manometer.
Which of the following statement is true regarding atoms?
Kinetic energy is expressed as:
Which of the following statement is not true according to Dalton's atomic theory ?
Ideal Gas Law is expressed as PV=nRT.
Aluminum oxide, Al2O3, is synthesized by the reaction of aluminum, Al, and oxygen gas, O2. Which of the following equations correctly represent the reaction?
Suppose synthesis of Al2O3 is done in the lab using 20.50 g of Al and excess of O2. Upon purification, 35.48 grams of Al2O3 is produced. What is the percent yield of Al2O3?
Compute the area given the following measurements: 3.7552 cm and 1.7 cm. Express the answer in significant figures.
Which of the following statement is true regarding Dalton's atomic theory?
According to the kinetic molecular theory, average kinetic energy of gas molecules is proportional to absolute temperature. At any given temperature, gas molecules have exactly similar average kinetic energy.
How many grams of Carbon are in 600 grams of Resveratrol?
Using the periodic table, which element is in Group 2A period 5?
How many significant figures are in 5.070 x 103 g?
What is the name of the compound that has 2 nitrogen and 4 oxygen?
The number of electrons and protons are equal in number.
Which of the following statement is not correct?
How many significant figures are in 0.000187?
Convert 35.6 degrees Celsius to Fahrenheit
What is the name of the compound that has 2 sulfur and 10 fluorine?
The -ium ending on the name of hydronium indicates that it is a cation from metal atoms.
Which of the following can increase the pressure of a gas?
Which gas law states that at constant pressure, the volume of a fixed amount of gas is directly proportional to its absolute temperature?
One mole of N2 contains 2*6.022 x 1023 molecules.
Elements can be decomposed into smaller substances.
How many significant figures are in 0.0054
What is the mass number of an atom that has 5 protons, 5 electrons and 6 neutrons?
As the mass or speed increases, kinetic energy decreases.
In reference to item 13, suppose synthesis of Al2O3 is done in the lab using 20.50 g of Al and excess of O2. Upon purification, 30.33 grams of Al2O3 is produced. What is the percent yield of Al2O3?
Dalton's law of partial pressure states that constant temperature and volume, the total pressure of a gas is ____________ proportional to the number of moles of gas present.
Elements are arranged in the periodic table in order of increasing atomic number.
Given the percent composition by mass of all the elements in an unknown compound, we can always determine its molecular formula.
AB4+2C2->AC2+2B2C. If 100 grams of AB4 reacts with excess of C2, it will produce 100 grams of AC2.
Suppose 20.50 g of Al reacts with excess O2, how many grams of Al2O3 is produced? (Molar Mass of Al2O3 is 101.96 g/mol)
Which of the following statement is true regarding the periodic table?
Which of the following is the correct formula of sulfurous acid?
One mole of Phosphorus, with atomic mass of 30.97 amu, has greater number of atoms than one mole of Boron, with atomic mass of 10.81 amu.
Which of the following statement is true regarding matter?
______________ are elements located in rows, while ________ are elements located in columns
Atomic number plus the number of neutrons is referred to as:
What is an example of endothermic process?
Which of the following statement is true regarding Gas Laws?
To keep up this site, we need your assistance. A little gift will help us alot.
Donate- The more you give the more you receive.
Related SubjectPhysical Science
Chemistry
Inorganic and Organic Chemistry
General Chemistry Organic
Environmental Science
Earth Science
Physics
Physics For Engineers
Calculus-Based Physics
Cell Theory
Life Science
Microbiology and Parasitology
Anatomy and Physiology
Mathematics
General Mathematics
Object Oriented Programming Laboratory
Mobile Programming
Network Security
Management Information Systems
Managing Information and Technology
Mobile Application Design and Development
Mobile Application Design and Development 2
Living in the Information Technology Era
Mail and Web Services
Information Technology Practicum
Information Technology Capstone Project
Introduction to Computing
Intro to Hardware Description Language
Introduction to Human Computer
Introduction to Information Systems
Introduction to Multimedia
Integrative Programming and Technology 2
Internet Marketing and Entrepreneurship
Internet Technology in Real Estate
Information Assurance and Security 2
Information Assurance and Security 3
Information Security and Management
Information Systems Operations and Maintenance
Fundamentals of Investigation and Intelligence
Fundamentals of Database System
Digital Imaging
Data Communications and Networking 2
Cyber Security: Theories and Practice
Data Communications and Networking
Data Structures and Algorithms
Database Management System
Computer Fundamentals
Animation Project
Load Testing
3D Game Art Development
Auditing and Assurance Concepts and Applications
Integrative Programming and Technology
Linux Administration
Software Engineering
Computer Programming
Applied Business Tools and Technologies
System Administration and Maintenance
Current Trends and Issues
Data Communications and Networking 4
Principles of Operating System and its Application
Systems Integration and Architecture
Application Lifecycle Management
Data Communications and Networking 3
Information Assurance and Security
Engineering
Electronics Engineering Technology
Computer-Aided Design
Construction
Shopee Helmet
Shopee 3D Floor
Lazada Smart TV Box