Homework Answers
Q1. Carbon has 15 known isotopes from 8C to 22C. The three most abundant are:
12 C = 98.9%
13C = 1.1%
14C = traces
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These questions are to guide your studying. They do not cover all of the topics that...
B) Theories must be testable; hypotheses do not need to be testable. CHypotheses are educated guesses,...
B) Theories must be testable; hypotheses do not need to be testable. CHypotheses are educated guesses, and theories are tentative explanations. D) Hypotheses are derived from experimentation, whereas theories are derived from observation. 12) A) Water is an example of an element. B Nitrogen C) Glucose D) Salt 13) What are the four most common elements found in living organisms? A) nitrogen, oxygen, phosphorus, and carbon carbon, oxygen, nitrogen, and hydrogen C) carbon, oxygen, potassium, and calcium D) oxygen, calcium,...
Atoms and Isotopes 1 Activity: Atoms and Isotopes Why? Atoms and isotopes are identified by the...
Atoms and Isotopes 1 Activity: Atoms and Isotopes Why? Atoms and isotopes are identified by the numbers of protons, electrons, and neutrons that they contain The number of protons, electrons, and neutrons in atoms determines the chemical properties of the elements .A knowledge of the number of protons and electrons in an atom will help you understand how atoms combine to form molecules Identify the composition of atoms in terms of protons, neutrons, and electrons Use atomic symbols to represent...
1) Which statement concerning the structure of the atom is correct A) Protons and Neutrons have...
1) Which statement concerning the structure of the atom is correct A) Protons and Neutrons have most of the mass and occupy C) Electron have most of the mass and occupy very little of the volume of the atom B) Electron have most of the mass and occupy most of the volume of the atom most of the volwne of D) Protons and Neutrons have most of the mass but occupy very little of the volume of the atom 2)...
Determine how many electrons there are in total in your body and what is the total...
Determine how many electrons there are in total in your body and what is the total electrical charge of these electrons. Keep in mind that most of the atoms in your body have the same number of electrons, protons and neutrons. Consider the average composition of the human body of 75 kilograms mass as: 65% Oxygen, 19% Carbon, 10% Hydrogen, 3% Nitrogen, 2% Calcium and 1% Phosphorus. The atomic number of Oxygen is 8 and its atomic mass is 16...
Which of the following is NOT one of the six elements that make up 95% of...
Which of the following is NOT one of the six elements that make up 95% of the body weight of organisms? OA) Hydrogen OB) Nitrogen Oc) Carbon OD) Iron Which of the following statements is true? OA) All isotopes give off subatomic particles. OB) All isotopes are radioactive. Oc) All isotopes have the same number of protons. OD) All isotopes have the same number of neutrons. What type of bond is formed when atoms share electrons? OA) lonic OB) Covalent...
64Chapter 7 Atomic Number and Atomie Mass The Periodie Table of Elements contains th and atomie...
64Chapter 7 Atomic Number and Atomie Mass The Periodie Table of Elements contains th and atomie wumber of protons, e atomic m number of each element. These numbbers indicate the neutrons, and electrons in each element's basic wtructure Each aquare in the Periodic Table represents an element There are two numbers in each square 3 Alomic Number The smaller number at the top of the box is the atomic number The number at the bottom of the box is the...
20) Which statement is NOT true about ionic bonds? A) An ionic bond occurs between positive...
20) Which statement is NOT true about ionic bonds? A) An ionic bond occurs between positive ions and negative ions. B) Electrons are completely lost or gained in ion formation An ion has the same number of electrons as a nonionic atom of the same element. D) A salt such as NaCl is formed by an ionic reaction. 21) Which of the following would be a proposed mechanism by which stomach antacids work? A) Antacids are bases and by definition...
Answer all questions.. ***"IGNORE FOR THE EXPERIENT PART"** Bio 101 Spring 2017 Homework Week 2 For...
Answer all questions..
***"IGNORE FOR THE EXPERIENT PART"**
Bio 101 Spring 2017 Homework Week 2 For the experiment -start taking 2 ideas and researching them, going into more depth on them. For the artwork- you can start thinking writing sketching- no more than 10 minutes Please do the Homework from Chapter 2 last week 1. What would you find in the nucleus of an atom? 2. Chat kind of charge do an electron, a neutron and a proton have? (positive)...
Permanent & Variable Atmospheric Gases Percent of Atmosphere (0% H,O) 78% 21% 1% Percent of Atmosphere...
Permanent & Variable Atmospheric Gases Percent of Atmosphere (0% H,O) 78% 21% 1% Percent of Atmosphere (1% H,O) 77% Percent of Atmosphere 12% H,O) 76% 21% 1% 2% Percent of Atmosphere (3% H,O) 76% 20% 1% 3% Percent of Atmosphere (4% H,0) 75% 20% 1% 4% 21% 1% 1% TABLE 1-2 3. According to Table 1-2. W ording to Table 1-2, what happens to the percentage of nitrogen and oxygen in the atmosphere as the percentage of water vapor increases...
..ll T-Mobile 2:05 PM 29% 12) of the four elements most prevalent in living organisms, which...
..ll T-Mobile 2:05 PM 29% 12) of the four elements most prevalent in living organisms, which element makes up the highest percentage? A) sulfur B) sodium C) oxygen D) potassium E) carbon 13) An atom of an element has atomic number of 6 and mass number of 14. From this information, we can determine that the nucleus has : A) 6 protons. B) 8 electrons. C) 8 neutrons. D) 6 protons and 8 electrons. E) 6 protons and 8 neutrons....
B) Theories must be testable; hypotheses do not need to be testable. CHypotheses are educated guesses, and theories are tentative explanations. D) Hypotheses are derived from experimentation, whereas theories are derived from observation. 12) A) Water is an example of an element. B Nitrogen C) Glucose D) Salt 13) What are the four most common elements found in living organisms? A) nitrogen, oxygen, phosphorus, and carbon carbon, oxygen, nitrogen, and hydrogen C) carbon, oxygen, potassium, and calcium D) oxygen, calcium,...
Atoms and Isotopes 1 Activity: Atoms and Isotopes Why? Atoms and isotopes are identified by the numbers of protons, electrons, and neutrons that they contain The number of protons, electrons, and neutrons in atoms determines the chemical properties of the elements .A knowledge of the number of protons and electrons in an atom will help you understand how atoms combine to form molecules Identify the composition of atoms in terms of protons, neutrons, and electrons Use atomic symbols to represent...
1) Which statement concerning the structure of the atom is correct A) Protons and Neutrons have most of the mass and occupy C) Electron have most of the mass and occupy very little of the volume of the atom B) Electron have most of the mass and occupy most of the volume of the atom most of the volwne of D) Protons and Neutrons have most of the mass but occupy very little of the volume of the atom 2)...
Which of the following is NOT one of the six elements that make up 95% of the body weight of organisms? OA) Hydrogen OB) Nitrogen Oc) Carbon OD) Iron Which of the following statements is true? OA) All isotopes give off subatomic particles. OB) All isotopes are radioactive. Oc) All isotopes have the same number of protons. OD) All isotopes have the same number of neutrons. What type of bond is formed when atoms share electrons? OA) lonic OB) Covalent...
64Chapter 7 Atomic Number and Atomie Mass The Periodie Table of Elements contains th and atomie wumber of protons, e atomic m number of each element. These numbbers indicate the neutrons, and electrons in each element's basic wtructure Each aquare in the Periodic Table represents an element There are two numbers in each square 3 Alomic Number The smaller number at the top of the box is the atomic number The number at the bottom of the box is the...
20) Which statement is NOT true about ionic bonds? A) An ionic bond occurs between positive ions and negative ions. B) Electrons are completely lost or gained in ion formation An ion has the same number of electrons as a nonionic atom of the same element. D) A salt such as NaCl is formed by an ionic reaction. 21) Which of the following would be a proposed mechanism by which stomach antacids work? A) Antacids are bases and by definition...
Answer all questions..
***"IGNORE FOR THE EXPERIENT PART"**
Bio 101 Spring 2017 Homework Week 2 For the experiment -start taking 2 ideas and researching them, going into more depth on them. For the artwork- you can start thinking writing sketching- no more than 10 minutes Please do the Homework from Chapter 2 last week 1. What would you find in the nucleus of an atom? 2. Chat kind of charge do an electron, a neutron and a proton have? (positive)...
Permanent & Variable Atmospheric Gases Percent of Atmosphere (0% H,O) 78% 21% 1% Percent of Atmosphere (1% H,O) 77% Percent of Atmosphere 12% H,O) 76% 21% 1% 2% Percent of Atmosphere (3% H,O) 76% 20% 1% 3% Percent of Atmosphere (4% H,0) 75% 20% 1% 4% 21% 1% 1% TABLE 1-2 3. According to Table 1-2. W ording to Table 1-2, what happens to the percentage of nitrogen and oxygen in the atmosphere as the percentage of water vapor increases...
..ll T-Mobile 2:05 PM 29% 12) of the four elements most prevalent in living organisms, which element makes up the highest percentage? A) sulfur B) sodium C) oxygen D) potassium E) carbon 13) An atom of an element has atomic number of 6 and mass number of 14. From this information, we can determine that the nucleus has : A) 6 protons. B) 8 electrons. C) 8 neutrons. D) 6 protons and 8 electrons. E) 6 protons and 8 neutrons....
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