Heterogeneous mixtures - Study guides, Class notes & Summaries
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CHEM 120 Exam #1 Questions With Complete Solutions
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define matter correct answer: anything that has mass and takes up space 
 
what is not considered matter? correct answer: light, heat, electricity 
 
definite shape, definite volume correct answer: solid 
 
indefinite shape, definite volume correct answer: liquid 
 
indefinite shape, indefinite volume correct answer: gas 
 
pure substance correct answer: one substance; definite and constant composition; can't be separated into 2 kinds of matter by physical means; single kind of matter 
 
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PAX Science NLN Exam Questions and Answers Latest 2022 Graded A
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PAX Science NLN Exam Questions and Answers Latest 2022 Graded A 
A person blows his breath into a straw that is placed in limewater. The limewater becomes cloudy because the person's breath contains 
A.) carbon dioxide. 
B.) hydrogen. 
C.) oxygen. D.) nitrogen. answer: carbon dioxide. 
A physician measures the pulse and blood pressure (BP) of all patients on a routine basis. Which of these measurements show the normal BP values for a resting adult patient? 
A.) 125/95 mm Hg 
B.) 120/80 mm Hg 
C...
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Chemistry Cumulative REVIEW Questions and Answers Graded A+
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Chemistry Cumulative REVIEW 
Questions and Answers Graded A+ 
 
Determine how to find density. Write out the formula. What is the density of an item with a mass 
of 40.0 grams and a volume of 8.0 milliliters? Show your calculations. 
Density = mass/volume 
 
40.0 g ÷ 8.0 mL = 5.0 g/mL 
 
Provide the density of water? Based on this, would the object from the previous question float or 
sink in water? Provide an explanation. 
Water has a density of 1 g/mL. Since the object’s density is greater ...
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Chem 111- Exam 1 review Questions with 100% Correct Answers
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physical vs. chemical change - Answer-physical- does not change the substance. 
change in matter but nor chemical composition 
chemical- substance is changed. 
energy is absorbed or released. 
one or more substances being used 
solid - Answer-often rigid with definite shape 
gas - Answer-fills container and is easily comressed 
liquid - Answer-flows and takes shape of container, has a op surface 
2 types of mixtures - Answer-heterogeneous- not uniform through out mixture 
homogeneous- uniform th...
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CHEM 103 Module 6 Problem Set 2023 Portage learning
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Module 6: Problem Set 
Question 1 
Define or describe: 
 (a) Amorphous solid (k) Molality 
 (b) Colligative property (l) Molarity 
 (c) Colloid (m) 
Nonelectrolyte 
 (d) Condensation (n) Phase 
 (e) Critical point (o) Strong 
electrolyte 
 (f) Critical pressure (p) Sublimation 
 (g) Crystalline solid (q) Surface tension 
 (h) Electrolyte (r) Triple point 
 (i) Fluid (s) Vapor pressure 
 (j) Ionization (t) Weak 
electrolyte 
Answer: 
(a) Amorphous solids are ones in which the particles are arrang...
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TEST BANK FOR CHEMISTRY –THE CENTRAL SCIENCE 14TH EDITION BY BROWN | REAL TESTED EXAM COMBINED {CH1} QUESTIONS ANSWERED CORRECTLY | LATEST UPDATE
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TEST BANK FOR CHEMISTRY –THE 
CENTRAL SCIENCE 14TH EDITION BY 
BROWN 
| REAL TESTED EXAM COMBINED {CH1} 
QUESTIONS ANSWERED CORRECTLY | 
LATEST UPDATE 
Chemistry: The Central Science, 14e (Brown, et al.) 
Chapter 1 Introduction: Matter, Energy, and Measurement 
1.1 Multiple-Choice Questions 
1) What is the physical state in which matter has a specific volume but does not have a specific 
shape? 
A) gas 
B) solid 
C) liquid 
D) salts 
E) ice 
Answer: C 
Diff: 1 Var: 1 Page Ref: Sec. 1.2 
L...
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NLN Practice Questions and Answers with complete solution
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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. - Answer-specific heat. 
A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing a large 
number of swimming paramecium. Under this condition, which of these behaviors of the paramecia wi...
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Test Bank For Foundations of College Chemistry 14th Edition Hein
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Package Title: Hein Test Bank 
Course Title: Hein 14e 
Chapter Number: 3 
 
 
Question type: Multiple Choice 
 
 
1) All matter is composed of elements. Approximately how many elements are there? 
 
a) 4 
b) 10 
c) 68 
d) 100 
 
Answer: D 
 
Difficulty: easy 
Learning Objective 1: Define an element and write the chemical symbol for an element when given its name. 
Section Reference 1: Section 3.1 
 
 
2) The smallest particle of an element that can exist is called a(n) ___. 
 
a) atom 
b) ferrul...
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Test Bank for Chemistry The Central Science 15th Edition Brown
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4) A small amount of salt dissolved in water is an example of a ________. 
A) homogeneous mixture 
B) heterogeneous mixture 
C) compound 
D) pure substance 
E) solid 
Answer: A 
Diff: 1 Var: 1 Page Ref: Sec. 1.2 
LO: 1.2 
GO: G2 
5) Which one of the following has the element name and symbol correctly matched? 
A) S, sodium 
B) Tn, tin 
C) Fe, iron 
D) N, neon 
E) B, bromine 
Answer: C 
Diff: 1 Var: 1 Page Ref: Sec. 1.2 
LO: 1.2 
GO: G2 
6) Which one of the following elements is identified by the...
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GACE Special Education Math and Science Rated A+
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GACE Special Education Math and 
 
Science Rated A+ 
 
Anion A negatively charged ion. It is formed by adding electrons to atoms or molecules. 
 
Cation A positively charged ion that is formed by removal of electrons from atoms or 
molecules. 
 
Ionic Crystal A crystal that is made up of two or more elements. The positive and negative 
ions are arranged in a definitive pattern. They are held together by electrostatic attraction. Some 
examples include sodium chloride and cesium chloride. 
 
Latt...
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