chemistry

Chemistry: Semester 1 Final Exam Study Guide What physical quantity is measured with kL? - answerVolume Convert a measurement of 16.2kg into grams. - answerConvert using 1,000g=1kg . Answer: 16,200g There are 2.54cm in an inch. Convert 8.12 inches into cm - answerConvert using 2.54=1in Answer:20.6 An object has a mass of 0.112kg. What is the mass in mg? - answer1kg=1,000g 1mg=0.001g Answer:112,000mg Copper has a density of 8.93g/mL. If a copper statuette has a volume of 1.40 L, what is ...

Chemistry Semester B Exam Questions And Answers 100% Pass 1. Which solution would be least likely to carry an electric current? - answerC6H12O6 Which pair of compounds is immiscible? - answerwater and toluene Agitation prevents settling in a(n) - answersuspension The substance dissolved in a homogeneous mixture is the ____________________________. - answersolute Which type of mixture contains the smallest particles? - answersolutions Henry's law relates - answerpressure to gas-liquid ...

Chemistry A Semester Exam Questions And Answers 100% Pass Two samples of solids have similar reactivity with acids and similar densities. Their masses and volumes, however, are not at all similar. Is it possible that these are the same substance? No, it is not possible because they have different intensive properties Yes, it is possible because they have similar intensive properties No, it is not possible because they have different extensive properties Yes, it is possible because they ha...

End of Semester Test: Chemistry A (Plato) Exam Questions And Answers 100% Pass. A __________ is scientific knowledge established through direct observation and remains constant. Scientific knowledge can change when scientists ___________ - answer1. fact 2. conduct experiments Giselle is working with a chemical substance in a laboratory. She observes that when the chemical is heated, it gives off a gas. She assumes that the gas is oxygen but decides to test this assumption to verify it. Wh...

Chemistry A Semester Exam 20-21 Questions And Answers 100% Pass. Two samples of solids have similar reactivity with acids and similar densities. Their masses and volumes, however, are not at all similar. Is it possible that these are the same substance? - answerYes, it is possible because they have similar intensive properties. Melting gold with other metals makes 10-karat gold. Which term best describes 10-karat gold? - answerhomogeneous mixture How do chemists predict the shapes of mole...

Chemistry Semester 1 Final Review Guide Define Chemistry: Define Matter: - answerChemistry is the study of matter and the changes it undergoes. Matter is the "stuff" of which the universe is composed; it as mass and it occupies space. Distinguish physical from chemical properties; physical and chemical changes. - answerPhysical Properties: substance shows by itself, without interacting with another substance. Chemical Properties: Properties a substance shows on interaction with othe...

in one mole of solid C to one mole of solid Si? - answerthe same amount of particles- 6.02 x 10^23 What reaction products would be the result of mixing AgNO2 with NaCl? - answerAgNO2 +NaCl→ NaNO2 +AgCl (Double Replacement) One mole of an ideal gas at STP is contained in a cylinder with a movable piston. What will happen to the volume of the gas if both the pressure and the number of moles are reduced to one half their original values and the temperature remains constant? - answerNo chang...

Integrated Physics and Chemistry Final Exam Questions And Answers 100% Pass. Volcanoes are a topic that would be studied in what branch of science? - answerearth A chemist is likely to do which of the following? 1. test the tensile strength of titanium for use as a prosthetic device 2. determine the structure of a plant part for medicinal purposes 3. write a formula for a paint coating 4. explore land areas for digging of oil wells - answer2 and 3 The language of science is _____________...

Chemistry Semester 2 Exam 10th Grade Questions And Answers 100% Pass. VSEPR theory is a model for predicting a. the strength of metallic bonds. b. the shape of molecules. c. lattice energy values. d. ionization energy. - answerb Use VSEPR theory to predict the shape of the hydrogen chloride molecule, HCl. a. tetrahedral b. linear c. bent d. trigonal-planar - answerb Four hybrid sp3 orbitals are formed from a. two s orbitals and two p orbitals. b. an s orbital and a p orbital. c. t...

Honors Chemistry Semester 2 Final Exam Questions And Answers 100% Pass. Which of the following best defines the molar mass of a substance? Mass, in grams, of each particle of the substance Total mass, in grams, of 100 particles of the substance Mass, in grams, of the nucleus of the substance's atoms Total mass, in grams, of all the particles in one mole of the substance - answerTotal mass, in grams, of all the particles in one mole of the substance What is the mass of 0.50 moles of Na...