Subscripts - Study guides, Class notes & Summaries

matter - any solid, liquid, gas, or plasma that occupies a space and has mass homogeneous mixture - mixture that is uniform throughout (solution) heterogeneous mixture - mixture that is not uniform throughout atoms - smallest unit of an element element - many atoms of the same type; most basic building blocks compounds - different elements bonded together (pure substance) chemical symbols - one or two letter abbreviation for elements (atomic symbols) group - vertical columns on periodic t...

Tests & Quizzes SCI 131 WEEK QUIZ QUESTIONS AND ANSWERS Lesson 05 - Week 05 Quiz Return to Assessment List Part 1 of 1 - 100.0 Points Question 1 of 25 `Sodium and chlorine are very dangerous by themselves. However, when we combine them together in a chemical 4.0 Points reaction, we eat it--it's table salt: 2Na + Cl2 → 2NaCl. If I want to make 50.0 g of my own salt (because I can and that's how I roll), how much elemental sodium would I need? NOTE: All numbers locate...

Write a C++ statement that takes the digit character in the char variable ch and changes it to its integer representation and saves the result in the integer variable intVal. So if ch contains '4', then intVal should contain the value 4. Assume that ch and intVal have been properly declared. - ️️intVal = ch - '0'; What will happen if a char is cout'd as an int? - ️️the ASCII value of the character will be displayed What is the ASCII value of the character '1'? ...

Define: Avogadro's number 6.023x 10^23 One mole of a pure substance Define: Empirical Formula elements combined in a compound with subscripts showing the smallest whole-number mole ratio Define: Molecular formula a formula showing the types and numbers of atoms combined in a single molecule of a molecular compound Define: Formula mass the sum of the average atomic masses of all the atoms represented in the formula of any molecule, formula unit, or ion Define: Mo...

FTCE Elementary Education Science Exam Questions and Answers matter - ANSWER takes up space, has mass mass - ANSWER measure of amount of matter in an object Examples earth and moon - ANSWER 2 objects of equal mass balance each other no matter where scale is located Weight - ANSWER measure of Earth's pull of gravity on an object Volume - ANSWER amount of cubic space an object occupies (matter also has this; 2 objects m...

CSCI 2467 - Exam (CSCC Ver. Study Guide) - In Progress Study Guide with Complete Solutions Variable - Answer️️ -Memory location of an assigned data type. Parameters - Answer️️ -Variables sent to methods that are being pass-by- value. Identifiers - Answer️️ -Names of variables, methods, classes, packages, and interfaces. Array Data Type Default Values - Answer️️ -Primitive is 0, char is /u0000, and boolean is false. Object - Answer️️ -Combination of data and methods,...

Atomic Structures - correct answer Know all the problems except #7,14,15 When looking at the atomic structure what does the left-hand subscript represent - correct answer Left hand subscript = atomic number When looking at the atomic structure what does the left-hand superscript represent - correct answer The mass number Where on the atomic structure would we find the ionic change (if the isotope has one) - correct answer On the right hand super-script The mass number = a com...

Honors Chemistry- Bonding chemical bond ️mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together because of have wanting a lower potential energy ionic ️bond with electrical attraction between large numbers of cations and anions ; give up electrons covalent ️bonding that results from sharing of electron pairs between two atoms Electronegativity ️measure of atoms ability to attract electrons; degree of ionic or coval...

TEST BANK FOR CHEMISTRY; AN ATOMS FIRST APPROACH, 2ND EDITION BY STEVEN S. ZUMDAHL | COMPLETE CHAPTER 1-21. Consider the element indium, atomic number 49, atomic mass 114.8 g. The nucleus of an atom of indium-112 contains: a. 49 protons, 63 neutrons, 49 electrons. b. 49 protons, 49 neutrons. c. 49 protons, 49 alpha particles. d. 49 protons, 63 neutrons. e. 49 protons, 112 neutrons. ANSWER: d POINTS: 1 2. A hypothetical element consists of two isotopes of masses 78.95 amu and 80.95 amu w...

Lesson 04 - Week 04 Quiz Return to Assessment List Part 1 of 3 - 44.0/ 52.0 Points Question 1 of 25 4.0/ 4.0 Points `Eureka! I've discovered a new compound! Yay for me. I have determined that its empirical formula, but in order to determine its actual molecular formula, I need to know which of the following? • A. the number of moles of the compound in a 1.00 g sample of the substance • B. the density of the compound • C. the boiling point and freezing poin...