Homework Answers
Ans 4: Ethanol has a molecular formula of C2H5OH so the functional group of ethanol and not ethane is hydroxyl group or OH group.
5: The ion has 6 protons, 7 neutrons and has a +2 charge which means that it has donated 2 electrons and because of this it carries +2 charge. Now the atomic number is equal to the total number of protons so the atomic number of this ion is 6 or Six.
6: In water the hydrogens atoms are connected to the oxygen atom by covalent bonds.
7: The atoms are most stable when their octate is completely filled with electrons for example inert gases like He, Ne etc.
8: Buffer solutions are used in labs for their no change in the pH.
Add Answer to:
need help with number 5 and check if the others are correct
QUESTION 4 The functional...
1) Define the following: matter, element, atom, trace element, proton, electron, neutron, atomic number, mass number,...
1) Define the following: matter, element, atom, trace element, proton, electron, neutron, atomic number, mass number, isotopes, radioisotope, molecule, compound, salt, ion. 2) List the 6 elements that make up about 99% of the weight of an organism. 3) What are the functions of the trace elements iron, fluorine (fluoride), and iodine? 4) An iodine deficiency can result in goiter. True/False 5) Where are protons, neutrons and electrons located? 6) Can you determine the atomic number and mass number from...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...
Question #4 & #5? 3) Using Early and Late Molecular Orbitals, draw the two M.O. diagrams...
Question #4 & #5?
3) Using Early and Late Molecular Orbitals, draw the two M.O. diagrams for NO , determine which is most stable; calculate and state bond order of each, state diamagnetic or paramagnetioc d if paramagnetic and by how many electrons. an 4) If four hydrogens, each with its 1s orbital, and two carbons, each with its one 2s and three 2p orbitals, form a molecule, then how many molecular orbitals will there be? How many bonding orbitals,...
I just need help on 5 and 6 please 4. For a particular semester, the number...
I just need help on 5 and 6 please
4. For a particular semester, the number of absences and a are presented below. Use Excel to find the covariance a average grade for 8 students and correlation coefficient. Student Average Grade Number of Absences 2 3 91 76 70 2 2 69 42 5 3 8 62 ei 5. Frompine cards numbered 1 through 8, three cards are randoml y drawn without replacement and each card is classified as odd...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has its own characteristic atom in which a. the atomic mass is constant. b. the atomic number is constant. c. the mass number is constant. d. Two of the above are correct. e. All of the above are correct. 2. Which of the following is not a trace element in the human body? a. iodine b. zinc c. iron d. calcium e. fluorine 3. A...
need help with number 4 ans 5 Short Answer/Fill-in-the-Blank Directions: Read the statements; then, using the...
need help with number 4 ans 5
Short Answer/Fill-in-the-Blank Directions: Read the statements; then, using the textbook for review, insert the correct word or words that complete t sentence or answer the question. healthcare. 1. Medicaid was originally created to give access to 2. The Medicaid program formerly referred to as Aid to Families with Dependent Children (AFDC) is now cile in many states. 3. List the groups that state programs must cover under broad federal guidelines. 4. The concept...
need help figuring my unknown and answering these questions please number every question and explain...studying for...
need help figuring my unknown and answering these questions
please number every question and explain...studying for exam next
week.
Transmittance 4000 3500 3000 1500 1000 2500 2000 Wavenumbers (cm-1) 500 C:47.358 H:10.598 0:42.06% N:08 X:08 0 10 Solvent We were unable to transcribe this imageMS Analysis When labeling a signal, make sure you are clear which specific one you are labeling (there may be several that are dose! When drawing a structure for a signal, draw directly on the MS...
My homework is due tomorrow and I have work! Please help me and answer these questions!...
My homework is due tomorrow and I have work! Please help me and
answer these questions! I'll give a thumbs up!
Electronic Structure of Atoms 1.20 Write the ground-state electron configuration for each atom. After each atom is its atomic number in parentheses. (a) Sodium (11) (b) Magnesium (12) (c) Oxygen (8) (d) Nitrogen (7) 1.21 Identify the atom that has each ground-state electron configuration. (a) 1s 2s 2p 3:23p (b) 1:2 2:22 1.23 How many electrons are in the...
Hey guys I need help with this question with 3 sub-problems. f test remove short synonyms () Define the remove shorti s...
Hey guys I need help with this question with 3 sub-problems.
f test remove short synonyms () Define the remove shorti synonyms function which is passed a dictionary as a parameter- The keys of the parameter dictionary are words and the corresponding values are 1ists of synonyms (synonyms are words which have the same or nearly the same meaning). The function romoves all the eynonyme which have ous than 8 charactors from each corresponding list of synonyms-As well, the funet...
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question....
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 00 OA Figure 2.1 Using Figure 2.1, match the following: 1) Tertiary (protein) structure, 2) Monosaccharide 3) Nucleotide 4) Lipid 5) Functional protein 6) Polymer 7) Polysaccharide TRUE FALSE. Write T if the statement is true and F if the statement is false, 8) Final preparation for cell division is made during the cell life cycle subphase called G2. SHORT ANSWER. Write the word...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...
Question #4 & #5?
3) Using Early and Late Molecular Orbitals, draw the two M.O. diagrams for NO , determine which is most stable; calculate and state bond order of each, state diamagnetic or paramagnetioc d if paramagnetic and by how many electrons. an 4) If four hydrogens, each with its 1s orbital, and two carbons, each with its one 2s and three 2p orbitals, form a molecule, then how many molecular orbitals will there be? How many bonding orbitals,...
I just need help on 5 and 6 please
4. For a particular semester, the number of absences and a are presented below. Use Excel to find the covariance a average grade for 8 students and correlation coefficient. Student Average Grade Number of Absences 2 3 91 76 70 2 2 69 42 5 3 8 62 ei 5. Frompine cards numbered 1 through 8, three cards are randoml y drawn without replacement and each card is classified as odd...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has its own characteristic atom in which a. the atomic mass is constant. b. the atomic number is constant. c. the mass number is constant. d. Two of the above are correct. e. All of the above are correct. 2. Which of the following is not a trace element in the human body? a. iodine b. zinc c. iron d. calcium e. fluorine 3. A...
need help with number 4 ans 5
Short Answer/Fill-in-the-Blank Directions: Read the statements; then, using the textbook for review, insert the correct word or words that complete t sentence or answer the question. healthcare. 1. Medicaid was originally created to give access to 2. The Medicaid program formerly referred to as Aid to Families with Dependent Children (AFDC) is now cile in many states. 3. List the groups that state programs must cover under broad federal guidelines. 4. The concept...
need help figuring my unknown and answering these questions
please number every question and explain...studying for exam next
week.
Transmittance 4000 3500 3000 1500 1000 2500 2000 Wavenumbers (cm-1) 500 C:47.358 H:10.598 0:42.06% N:08 X:08 0 10 Solvent We were unable to transcribe this imageMS Analysis When labeling a signal, make sure you are clear which specific one you are labeling (there may be several that are dose! When drawing a structure for a signal, draw directly on the MS...
My homework is due tomorrow and I have work! Please help me and
answer these questions! I'll give a thumbs up!
Electronic Structure of Atoms 1.20 Write the ground-state electron configuration for each atom. After each atom is its atomic number in parentheses. (a) Sodium (11) (b) Magnesium (12) (c) Oxygen (8) (d) Nitrogen (7) 1.21 Identify the atom that has each ground-state electron configuration. (a) 1s 2s 2p 3:23p (b) 1:2 2:22 1.23 How many electrons are in the...
Hey guys I need help with this question with 3 sub-problems.
f test remove short synonyms () Define the remove shorti synonyms function which is passed a dictionary as a parameter- The keys of the parameter dictionary are words and the corresponding values are 1ists of synonyms (synonyms are words which have the same or nearly the same meaning). The function romoves all the eynonyme which have ous than 8 charactors from each corresponding list of synonyms-As well, the funet...
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 00 OA Figure 2.1 Using Figure 2.1, match the following: 1) Tertiary (protein) structure, 2) Monosaccharide 3) Nucleotide 4) Lipid 5) Functional protein 6) Polymer 7) Polysaccharide TRUE FALSE. Write T if the statement is true and F if the statement is false, 8) Final preparation for cell division is made during the cell life cycle subphase called G2. SHORT ANSWER. Write the word...
Most questions answered within 3 hours.
-
26) Briefly describe, using words or simple diagrams, the
chemiosmotic theory for coupling oxidation to phosphorylation...
asked 1 minute ago -
Suppose that XX is a random variable with mean 16 and standard
deviation 5 . Also...
asked 53 minutes ago -
Calculate the number density of argon gas at a temperature of
24C and a pressure of...
asked 4 hours ago -
Alternative
Classification
How to Estimate
Probabilities from Data? ( For continuous Attributes)
And How to generate...
asked 4 hours ago -
An explosion breaks a 20.0-kg object into three parts. The
object is initially moving at a...
asked 4 hours ago -
Calculate the approximate number of residues of Rubisco, which
is involved in carbon fixation in plants,...
asked 5 hours ago -
Other decisions about scientific claims can have a much broader
impact.ENERGYarrow-10x10.png, environment, health, security - all...
asked 6 hours ago -
I need to write a research paper and work cited about this
topic: The United States...
asked 7 hours ago -
Hello! I was wondering if I could have some help?
If the vapor pressure of carvone...
asked 7 hours ago -
An economist wants to estimate the mean per capita income (in
thousands of dollars) for a...
asked 7 hours ago -
What would be the input/output characteristic of a circuit
obtained by putting two of your 2's-complementers...
asked 7 hours ago -
In Drosophila, the transition from the syncytial blastoderm
stage to the cellular blastoderm stage is a...
asked 8 hours ago