Homework Answers
1. Na3PO4(aq) ----------> 3Na^+ (aq) + PO4^3- (aq)
1 4 particles
c. 1:4
2. salts are strong electrolytes
a.NaCl and Mg(CH3COO)2
3. a . The cell would swell
4. d. oxygen and hydrogen
fluorine, oxygen , nitrogen and hydrogen form hydrogen bond
5.
initial final
M1 = 20% M2 =
V1 = 60ml V2 = 15%
M1V1 = M2V2
M2 = M1V1/V2
= 20*60/15 = 80ml
b. 80ml >>>answer
6. b. octet rule
7. Cl(g) + e^- ----------> Cl^- (g)
chlorine is more electronegative
a. chlorine
8. (m/v)% = 450*100/1000 = 45%
b. 45%
9.lactate ion is C3H5O3^-
b. C3H5O3^-
Add Answer to:
Wii Desi completes the statement or answers the question. osphate? Na P04-3 u Diff HAL 1....
36 What is the percent by volume (% v/v) of ethanol in a solution prepared by...
36 What is the percent by volume (% v/v) of ethanol in a solution prepared by adding enough water to 65.0 mL of ethanol to make 227 mL of ethanol solution? a) 6.50% b) 2.27% C c) 3.49% d) 40.1 % e) 28.6% O f)32.4% Which of the following can react with 1 sulfur atom to form a covalent compound? 37 a) 1 chlorine atom b) 2 hydrogen atoms c) 2 sodium atoms d) 1 hydrogen atom e) 1 calcium...
1. Write the electron configurations and identify the number of valence electrons for each of the...
1. Write the electron configurations and identify the number of valence electrons for each of the following elements. oxygen sulfur nitrogen hydrogen fluorine phosphorus 2. Write name of the molecular geometry for each of the following molecules. a. A molecule with the central atom surrounded by three atoms and one lone pair. b. A molecule with a central atom surrounded by two doubly-bonded atoms. c. A molecule with a central atom surrounded by two singly-bonded atoms and two lone pairs....
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...
Multiple Choice Indicate the answer choice that best completes the statement or answers the question. 1....
Multiple Choice Indicate the answer choice that best completes the statement or answers the question. 1. Which of the following will undergo rearrangement upon heating? a. 2-butenyl phenyl ether b. 1-propenyl 2-propenyl ether c. 2-pentenyl phenyl ether d. All will undergo rearrangement. 2. Consider the following species. Atoms other than carbon and hydrogen are labeled. Which of the following would be produced upon treatment with 1,? b. a. CH; CH3 CH3 CH CH CHCH.CH CHCH CH CHCH CH CHCH d....
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...
1. How many electrons appear in the Lewis symbol for an element whose electron configuration is...
1. How many electrons appear in the Lewis symbol for an element whose electron configuration is 1s'2s'2p? a. 2 b. d. 2. In which of the following ionic compounds are ions with a +2 charge present? a LiSe c Mg,Si d. SnO 3. The Roman numeral ." in the name iron(m) oxide indicates that: a. iron is present in the form of +3 ions b. there are three iron atoms per formula unit c. there are three oxygen atoms per...
options for 1) Cd &Ni, Mg &Zn, Sr &Sc, None 2) none, Na and B, Sc...
options for
1) Cd &Ni, Mg &Zn, Sr &Sc, None
2) none, Na and B, Sc and Mg, He and H
3) V, B, Si, None
4) C, S, P, none
5) Tc, Ru, Mo, none
6) Mo, Ru, Tc, none
7)Mo, Ru, Tc, none
Select the pairs of atoms that have the same total number of d electrons. Select all that apply. Ca and Cr O Mo and Tc Cu and Zn Ge and Kr Question 4 1 pts...
14. When are atoms most stable? A) when they have the fewest possible yale (B) when...
14. When are atoms most stable? A) when they have the fewest possible yale (B) when they have the ma C) when all of the electron Orbit D) when all electrons are paired e the fewest possible valence electrons they have the maximum number of unpaired electrons in all of the electron orbitals in the valence shell are filled ods with 15. Water molecules can form hydrogen bonds with Acompounds that have polar covalent bonds B) compounds that have non-polar...
11. Which of the following is expected to be insoluble in water? A. Na2CO3 B. Fe(NO3)3...
11. Which of the following is expected to be insoluble in water? A. Na2CO3 B. Fe(NO3)3 C. KS04 D. AGNO3 E. ZnS 12. Which of the following has the lowest oxidation number? A. S in H2SO4 B. Cr in KiCrO4 C. Xe in XeFG D. Clin Ca(CIO3)2 E. Mn in KMnO4 13. Which of the following correctly defines "molarity"? A. mol solute/L solution B, mol solute/mL solvent C. mol solute/kg solvent D. mol solute/L solvent E. ky solute/mol solution 14....
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...
36 What is the percent by volume (% v/v) of ethanol in a solution prepared by adding enough water to 65.0 mL of ethanol to make 227 mL of ethanol solution? a) 6.50% b) 2.27% C c) 3.49% d) 40.1 % e) 28.6% O f)32.4% Which of the following can react with 1 sulfur atom to form a covalent compound? 37 a) 1 chlorine atom b) 2 hydrogen atoms c) 2 sodium atoms d) 1 hydrogen atom e) 1 calcium...
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...
Multiple Choice Indicate the answer choice that best completes the statement or answers the question. 1. Which of the following will undergo rearrangement upon heating? a. 2-butenyl phenyl ether b. 1-propenyl 2-propenyl ether c. 2-pentenyl phenyl ether d. All will undergo rearrangement. 2. Consider the following species. Atoms other than carbon and hydrogen are labeled. Which of the following would be produced upon treatment with 1,? b. a. CH; CH3 CH3 CH CH CHCH.CH CHCH CH CHCH CH CHCH d....
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...
1. How many electrons appear in the Lewis symbol for an element whose electron configuration is 1s'2s'2p? a. 2 b. d. 2. In which of the following ionic compounds are ions with a +2 charge present? a LiSe c Mg,Si d. SnO 3. The Roman numeral ." in the name iron(m) oxide indicates that: a. iron is present in the form of +3 ions b. there are three iron atoms per formula unit c. there are three oxygen atoms per...
options for
1) Cd &Ni, Mg &Zn, Sr &Sc, None
2) none, Na and B, Sc and Mg, He and H
3) V, B, Si, None
4) C, S, P, none
5) Tc, Ru, Mo, none
6) Mo, Ru, Tc, none
7)Mo, Ru, Tc, none
Select the pairs of atoms that have the same total number of d electrons. Select all that apply. Ca and Cr O Mo and Tc Cu and Zn Ge and Kr Question 4 1 pts...
14. When are atoms most stable? A) when they have the fewest possible yale (B) when they have the ma C) when all of the electron Orbit D) when all electrons are paired e the fewest possible valence electrons they have the maximum number of unpaired electrons in all of the electron orbitals in the valence shell are filled ods with 15. Water molecules can form hydrogen bonds with Acompounds that have polar covalent bonds B) compounds that have non-polar...
11. Which of the following is expected to be insoluble in water? A. Na2CO3 B. Fe(NO3)3 C. KS04 D. AGNO3 E. ZnS 12. Which of the following has the lowest oxidation number? A. S in H2SO4 B. Cr in KiCrO4 C. Xe in XeFG D. Clin Ca(CIO3)2 E. Mn in KMnO4 13. Which of the following correctly defines "molarity"? A. mol solute/L solution B, mol solute/mL solvent C. mol solute/kg solvent D. mol solute/L solvent E. ky solute/mol solution 14....
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...
Most questions answered within 3 hours.
-
4. Determine the theoretical yield of P2O5, when 3.07 g of P
reacts with 6.09 g...
asked 56 minutes ago -
Explain the PEST analysis and how a marketer would use this when
putting together a marketing...
asked 38 minutes ago -
S sells property with a $500 basis to B for $450, and B later
sells the...
asked 1 hour ago -
True/False Questions
1.
In interpreting an agreement, courts generally apply a
subjective standard.
2.
If, after...
asked 44 minutes ago -
On January 1, 20X7, Green Corp. paid $1,020,000 to acquire Wax
Co. Wax maintained separate incorporation....
asked 1 hour ago -
C++
Write a class Fraction that defines adding, subtracting,
multiplying, and dividing fractions by overloading standard...
asked 3 hours ago -
This java code won't run and I can't figure out the problem with
it. Please help...
asked 4 hours ago -
Trace the following recursive methods:
a) isPal with the string “abccda”
b) isAnBn with the string...
asked 5 hours ago -
1. Which of the following is false about photosynthesis?
A. ATP is the molecule used to...
asked 5 hours ago -
A simple random sample of size n=64 is obtained from a
population with a mean of...
asked 6 hours ago -
(2 dimensions, 1 object, 2 accelerations)
1) A projectile is thrown with a wind. The wind...
asked 7 hours ago -
Brian makes $34,100 per year. How much can Brian expect to
contribute to FICA taxes in...
asked 8 hours ago