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AP Chemistry Complete Guide Question Solved.
What is a solution? - correct answer A homogeneous mixture made up of two or more substances that do not chemically combine; instead, the substances mix uniformly in the solution. What is a solvent? - correct answer The substance present in the largest quantity by volume, usually water. What is a solute? - correct answer The substance that is dissolved in the solvent. How do you find the empirical formula of a compound? - correct answer First, determine mol by dividing the percent comp ...
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AS chemistry revision Exam Practice Question And Answers.
mass of an electron - correct answer 1/2000th of a proton relative charge and relative mass of a proton, neutron, and electron - correct answer proton: charge=+1 mass=1 neutron: charge=0 mass=1 electron: charge=-1 mass=1/2000th atomic number - correct answer the number of protons in the nucleus of an atom mass number - correct answer the sum of the number of neutrons and protons in an atomic nucleus isotopes - correct answer atoms of the same element with a different mass number an...
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Chemistry Notes Test Paper #1 Question Fully Solved.
What is chemistry? - correct answer The study of matter, it's properties, the changes that mater undergoes, and the energy associated with these changes. What is matter? - correct answer Anything that has both mass and volume. The "stuff" of the universe. What is meant by composition? - correct answer The types and amounts of simpler substances that make up a sample of matter. What are properties? - correct answer The characteristics that give each substance a unique identity. Wha...
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grade 9 chemistry Verified Exam Solution Graded A+.
Atom - correct answer the basic (and smallest) unit of a chemical element. Made up of three parts, proton, electron, neutron. Atomic radius - correct answer the average sitance from the centre of an atom's nucleus to its electrons in the farthest orbital. Boiling Point - correct answer the temperature at which a liquid boils and turns to vapor (100°C). The boiling point for fresh water is 100°C. Binary Compound - correct answer 2 ionic compounds. Chemical Change - correct answer u...
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Basic Chemistry Written Guide With Questions Answered Correctly.
matter - correct answer anything that occupies space and has mass element - correct answer a pure substance that cannot be broken down into other substances by chemical reactions compound - correct answer substance containing two or more elements chemically combined in a fixed ratio atom - correct answer the smallest particle of an element that retains the properties of the element proton - correct answer subatomic particle having a positive charge; found in nucleus electron - cor...
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Intro to Chemistry flashcards Question Fully Solved Guide.
matter - correct answer anything that has mass and takes up space physical property - correct answer characteristic of a substance observed without changing it into another substance solid - correct answer definite shape and definite volume liquid - correct answer definite volume but indefinite shape gas - correct answer indefinite shape, indefinite volume plasma - correct answer state of matter that occurs when energy such as electricity or heat is applied to a gas. mass - cor...
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Grade 10 chemistry Study Exam With Explanations Of Answers.
Physical change - correct answer A change in the size or form of a substance. No new substance is formed. Chemical change - correct answer A new substance is formed. How to tell chemical change? - correct answer Precipitate, change in color, gas formed, heat and light, and difficulty to reverse change. Isotopes - correct answer Atoms of the same element having the same number of protons and electrons but a different number of neutrons Ion - correct answer A charged Atom Cations - ...
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GENERAL CHEMISTRY Exam Solution Latest Answers 100% Correct.
Hypothesis - correct answer An educated guess based on observations, previous knowledge and intuition Experimentation - correct answer Observations taken under conditions that we can control so we can ask specific questions Data - correct answer Observations obtained from an experiment Theory - correct answer A well tested conclusion that can be confirmed through further information Law - correct answer A very consistent behavior that has universal validity What is Matter? - corre...
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Chemistry Review Study Guide Exam With Complete Answers.
what are organisms are composed of? - correct answer Matter What is matter - correct answer Anything that takes up space and has mass. Is made up of elements What is an element - correct answer A substance that cannot be broken down to other substances by chemical reactions What is a compound - correct answer A substance consisting of two or more elements in a fixed ratio. Hass characteristics differ from those of its elements What elements make up 96% of living matter? - correct ans...
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Chemistry Questions Fully Solved With 100% Correct Answers.
ion - correct answer a molecule with a charge cation - correct answer a molecule with a positive charge anion - correct answer a molecule with a negative charge solid - correct answer definite shape and volume liquid - correct answer definite volume, takes the shape of its container gas - correct answer indefinite shape and volume plasma - correct answer matter stripped of its electrons that gives of light solution - correct answer made of a solute and solvent heterogeneo...
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Chemistry-1 EXAM REVIEW Revision With Comprehensive Correct Answers.
mass - correct answer the amount of matter in an object volume - correct answer the amount of space occupied by an object extensive property - correct answer a property that depends on the amount of matter in a sample intensive property - correct answer a property that depends on the type of matter in a sample, not the amount of matter substance - correct answer Matter that has a uniform and definite composition physical property - correct answer a quality or condition of a substa...
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Chem-Solutions and Solubility Test Test April 2022
Chem-Solutions and Solubility Test Test April 2022 Chem-Solutions and Solubility Test Test April 2022
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