This collection of chemistry test questions is grouped according to subject. Each exam has answers supplied at the end. They provide a useful study tool for students. For instructors, they are a good resource for homework, quiz, or test questions, or practice for the AP Chemistry test. Measurement is an important concept in all science. Your total measurement precision is only as good as your least precise measurement. These test questions deal with the topics of significant figures and scientific notation.
Converting from one unit of measurement to another is a basic scientific skill. This test covers unit conversions between metric units and English units. Rember to use unit cancellation to easily figure units in any science problem. Temperature conversions are common calculations in chemistry. This is a collection of questions dealing with conversions between temperature units.
An important laboratory technique in a chemistry lab is the ability to accurately measure a liquid in a graduated cylinder. This is a collection of questions dealing with reading the meniscus of a liquid. When you're asked to calculate density, ensure that your final answer is given in units of mass—grams, ounces, pounds, or kilograms—per volume, such as cubic centimeters, liters, gallons, or milliliters.
Review the unit conversion test questions above if you need to brush up on unit conversions. Naming ionic compounds is an important skill in chemistry. This is a collection of questions dealing with naming ionic compounds and predicting the chemical formula from the compound name. The mole is a standard SI unit used primarily by chemistry. This is a collection of test questions dealing with the mole. The molar mass of a substance is the mass of one mole of the substance. These test questions deal with calculating and using molar masses.The figure 1 below is an illustration of an endoparasite of farm animals.
Study it carefully and answer the questions that follow. The West African Examination Council is an examination body that set questions yearly from areas student should, after their studies in the senior secondary school, be able to write and pass without stress. Preparation is the key to success. Without your preparation towards the forthcoming Chemistry Practical exams, you can not know the correct answers to the questions presented before you.
Read for your exams. Hence the use of the WAEC recommended texts is the key to success. I tell you, with self-confidence, you will conquer. The Almighty God is your Creator, he cannot hide his face from you if you seek his face. Do not claim to be busy while you suppose to be in the exams venue. Go earlier and settle before the exams start.Freedownload latest south africa mp 3 music audio
Many candidates overlook the instructions given in the exams hall. They think the instructions are not important. The WAEC syllabus covers everything you need to know before the examination day. You can access the waec e-learning portal here.Roadtrek dealers in az
Below are some ways WAEC candidates use to cheat during exams. Waec examiners and Candidates should kindly take note of this an avoid them. Writing on body parts. Writing on four figure table. Use of finger codes:. We also have many other things to offer you.Study Questions ; Answers.
Practice Problems: Conversion Factors ; Answers. Practice Problems: Classification of Matter ; Answers. Practice Problems: Naming compounds from formula and vice versa ; Answers. Practice Finding Name and Formula with Answers. Practice Problems: Periodic Table and simple ionic compounds ; Answers. Ionic nomenclature interactive quizzes : Click the Formulas button to go from the name to the formula. Click the Names button to go from the formula to the name. More Study Questions ; Answers.
Practice Problems: Percent composition and empirical formula ; Answers.
Practice Problems: Stoichiometry ; Answers. Practice Problems: Writing and classifying equations ; Answers. Practice balancing chemical equations interactive Click "Balancing Chemical Equations Tutorial" on the left. From the Chem Team: Worksheet of mass mole conversions Answers to Worksheet of mass mole conversions. Here's a tutorial from ChemTutor on classifying and balancing chemical equations with Practice Problems on the bottom of the page.
Stoichiometry Worksheet with a link to Answers from the ChemTeam. Practice Problems: Determining whether a precipitate forms ; Answers. Dilution practice problems ; scroll to the bottom of the page.
Electron configuration practice interactive Scroll down on the left and Click "Complete Electron Configurations". Practice Quiz on electron configurations. Under Science, click on Elements. On the left, click the box for Electrons. Then select a Question Style. Web site with practice finishing Lewis structures : Select a compound from the drop down menu. Click "check structure" to check your answer. Molecules : Select a molecule from the "List of Molecules" menu on the right to see its 3-D structure.
Click the "images" tab for its Lewis structure. Animation of Orbital hybridization. Animations of Condensation Reactions: Simple animations for condensation reactions between a carboxylic acid and an alcohol and between a carboxylic acid and an amine.The Waec Gce chemistry practical alternative question and answers for exam have been released.
Write your answers in the spaces provided. A student adds a known mass of magnesium ribbon to cm3 of dilute hydrochloric acid an excess in the apparatus shown below. Hydrogen gas is evolved. The time taken to collect 48 cm3 of gas at room temperature and pressure is measured.
What is this colour change? Explain why it happens. Name the gas and give a test for the gas. Explain why. Complete the table below. Keep following this page and make sure you bookmark this site for reference purposes. Also, the 3rd question is missing…. Your email address will not be published. Notify me of follow-up comments by email.Class ab amplifier advantages and disadvantages
This site uses Akismet to reduce spam. Learn how your comment data is processed. Spread the love - Share this with your friends. Ola September 13, at am. Seyi September 13, at am. Question and ans for chemistry alternative to practical. Tosin September 12, at pm. I really hope this information is reliable…….
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Practice Problems with Answers
Ashnik September 10, at pm.Chemistry Quiz. Chemistry is an amazing subject which combines a number of different sciences, attempting to make sense of the complicated world we live in. Try our fun chemistry quiz and see what you really know about topics such as organic chemistry, atoms, reactions, acids and bases.
Chemistry Quiz Chemistry is an amazing subject which combines a number of different sciences, attempting to make sense of the complicated world we live in. Sponsored Links. What is the first element on the periodic table?
At room temperature, what is the only metal that is in liquid form? A nuclear reaction where the nucleus of an atom splits into smaller parts is known as nuclear fission or nuclear fusion?
What is the third most common gas found in the air we breathe? What is the name given to substances that are initially involved in a chemical reaction? Atoms of the same chemical element that have different atomic mass are known as? What is the fourth most abundant element in the universe in terms of mass? What is the centre of an atom called? True or false? Acids have a pH level below 7. What is the main gas found in the air we breathe?Design of column
An electron carries a positive charge. What is the chemical symbol for gold? K is the chemical symbol for which element? What orbits the nucleus of an atom? A neutron has no net electric charge. What is H 2 0 more commonly known as? Bases have a pH level below 7. Is sodium hydroxide NaOH an acid or base? A proton carries a positive charge. A nucleus.Here you will get a set of important practical based questions for CBSE class 9 Science annual exam All the questions are thoroughly solved.
Such questions are expected in set of 1 mark or 2 marks questions. So, to deal with the practical based questions, students must be aware of important practical concepts. We are providing here important practical based questions for class 9 Science exam.
All these questions are provided with detailed answers to make it easy for students to understand the concepts used. Practicing with these practical questions will help students to acquaint with important concepts and enhance their practical knowledge so that they are able to solve questions in exams to get correct answer. Given below is a collection of important questions based on practical skills to prepare for CBSE class 9 Science exam:.
Mention the two precautions to determine the boiling point of water in laboratory. The frequency of a source of sound is Hz. How many times does it vibrate in a minute? In which of the two, glycerine or kerosene, the loss in weight of a solid when fully immersed in them will be more and why? A liquid having higher density exerts more upthrust force on object than other liquid having low density.
Thus, greater the density of a liquid, the more will be the the buoyant force exerted on the object immersed in it. Now, due to this greater upthrust buyont forcethe object experiences greater apparent weight loss. Thus in case of glycerine, the loss in weight of a solid when fully immersed in it will be more than when immersed in kerosene.
If its wavelength is 2 cm, what is the frequency of the wave? Will it be in the audible range? When dipped in a fluid, name the factor on which the loss in weight of a solid depends. Name the two forces which act upon the solid dipped in the fluid. Loss in weight of a solid dipped in a fluid depends upon the density of that fluid. The two forces which act upon the solid dipped in the fluid are:. In an experiment to determine the boiling point of water, state reason for the following:.
When the temperature is raised for boiling the water, it starts to bump. But pumice stone being porous, provides space for air. This reduces bubbling in hot water to facilitate the boiling process.
A mixture of sand, powdered glass and common salt is dissolved in water and then filtered. Name the substance left on filter paper. Name the substance in the filtrate. Out of the given three substances only common salt is soluble in water whereas both sand and powdered glass are insoluble in water. Thus when a mixture of sand, powdered glass and common salt is dissolved in water and then filtered sand and powdered glass would be left on filter paper while common salt will be present in the filtrate.
A free falling object eventually stops on reaching the ground. What happens to its kinetic energy? Its kinetic energy will be zero on reaching the ground. Actually, when an object falls freely towards the ground, its potential energy decreases and kinetic energy increases. But as soon as the object touches the ground, all its potential energy gets converted into kinetic energy and finally when the ball stops after hitting the ground, all its kinetic energy gets converted into heat energy and sound energy.
What would help us to find out that the baby is sick? Behavioural changes like constant crying, irritabilty, improper intake of food, low period of activeness and mood swings can help to determine that the baby is sick. List any two precautions you must take while finding the melting point of ice and boiling point of water.This Weekend," 6 Oct.
Time Traveler Phrases Related to PREVIEW Related Phrases trailer trash preview Definition of preview for English Language Learners : to see, hear, or show something (such as a movie) before it is available to the public : to give a general description of (something that will happen in the future) : to see an example of what something will look like preview Definition of preview for English Language Learners : a special show or performance that allows some people to see a movie, play, etc.
TAKE THE QUIZ Test Your Knowledge - and learn some interesting things along the way. TAKE THE QUIZ Love words. On page 11, Sally Gaines previews next week's movies on TV. Click here for an exclusive preview of our forthcoming new products. What is the pronunciation of preview. Sign up now Log in Contents Contents Contents googletag.
He looked like a man who had lately had a preview of Hell's inverted pleasures. She recalled all that now as she sat in the little theatre waiting for the preview of her picture to begin. Because of such a plan the matters of review and preview take on vital significance. Complexity Complexity sorts synonyms based on their difficulty. Adjust it higher to choose from words that are more complex.
Length Length ranks your synonyms based on character count.Chemistry Practical Viva 3
Informal Informal words should be reserved for casual, colloquial communication. What does Tis the Season mean. Important as is the review, the preview or assignment is equally vital.
Like so many others in the nerd world, I fell in love with Cards Against Humanity through its Kickstarter preview in 2011. And that may be just a preview, if local Taliban commanders are to be believed. People thought she might preview some tracks at the Super Bowl Halftime Show in February.
2017/2018 Chemistry 3 Practical Question/Answers (Alternative A&B)
The first Iraqis you introduce, Yaghdan and Haifa, preview their stories a bit. Meaning "to show (a film, etc. Bennion Hour of Enchantment Roy J.
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