Heterogeneous mixtures - Study guides, Class notes & Summaries

1. particles are arranged in a random fashion ANS Amorphous solids 2. physical properties of solvents that are dependent on the concentration of the solute present and the identity of the solvent but not on the identity of the solute. They include vapor pressure, freezing point and boiling point ANS Colliga- tive properties 3. heterogeneous mixtures which appear to homogeneous one-phase mix- tures but are actually composed of particles too small to be seen with the naked eye ANS Colloids 4...

Which of these structures of the male reproductive system carries sperm cells from the testes to the lower part of the abdomen?Correct answer - Vas deferens A method for determining the blood alcohol content of a subject is toCorrect answer - Use a Breathalyzer A person blows his breath into a straw that is placed in limewater. The limewater becomes cloudy because the person's breath containsCorrect answer - carbon dioxide A physician measures the pulse and blood pressure (BP) of a...

Determine density. Write the formula. What is the density of an object that has a mass 40.0g and a volume of 8.0mL? Show your work. - D=m/v (mass/volume) 40/8= 5g/mL What is the density of water? Would the object in #1 float or sink in water? Explain. - The density of water is 1g/mL the object in #1 would sink because an object with a density less than 1 g/cm3 will float What are two ways that mixtures are classified? Give an example of each. - heterogeneous: Oil & water homogeneous ...

NLN Practice Exam Questions And Answers (Verified And Updated) 1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of heat energy. The final temperatures of X and Y are 15°C and 20°C, respectively. Compared to X, Y must have a lower specific heat. conductive heat. heat of fusion. heat of vaporization. - answerspecific heat. A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing a large number of swimming paramecium. U...

CHEM 120 –2nd Combined Learning Questions and Exam with Q&A 2024 Describe the scientific method make an observation form a question form hypothesis test your hypothesis preform experiment what is the difference between hypothesis, theory, and law? hypothesis is the initial intent to explain the observation. theory is a way to explain that has lots of experimental support law is a statement that is always ture but does not explain. homogeneous vs heterogeneous mixture...

NLN Practice Exam Questions And Answers (Verified And Updated) 1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of heat energy. The final temperatures of X and Y are 15°C and 20°C, respectively. Compared to X, Y must have a lower specific heat. conductive heat. heat of fusion. heat of vaporization. - answerspecific heat. A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing a large number of swimming paramecium. U...

strongest interparticle force out of all the states of matter? ANSWER: solids weakest interparticle force out of all the states of matter? ANSWER: gases What are the 2 types of pure substances? ANSWER: compounds and elements What are the two types of mixtures? ANSWER: homogeneous and heterogeneous Define a pure substance ANSWER: a substance with uniform composition, meaning that it will have the same properties regardless of the size of the sample or where the sample is taken De...

Matter - ANSWER-anything occupying space and having mass Simplest Form of Matter - ANSWER-debatable Atom - ANSWER-neutrons + protons + electrons [ nucleus ] Element - ANSWER-collection of atoms (same type) different atoms have different types of atoms Example of an Element - ANSWER-anything on the periodic table Compound - ANSWER-combine two or more different elements by forming chemical bonds have constant composition Example of a Compound - ANSWER-H2O Mixture - ANS...

Observational recordings - ANSWER - should not be altered, erased, or whited-out to make corrections - drawing a single line through it Parts of a lab report - ANSWER 1. title 2. abstract - contain the hypothesis - include a control and one variable 3. introduction 4. methods 5. results 6. conclusion / summation Volumetric flask - ANSWER - used to accurately prepare a specific volume and concentration of solution Erlenmeyer flasks - ANSWER used for mixing, transporting, ...