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i need help with 1-6
i need help with questions 1-6
Question 1 8 pts Choose...
i need help with 2,4,5,8,9,10-12 6 pts Question 2 A student designs an experiment to test...
i need help with 2,4,5,8,9,10-12
6 pts Question 2 A student designs an experiment to test the hypothesis: "If a solution of sucrose in water has a higher concentration, it will attract more ants." The student makes sucrose solutions with concentrations of 1.00,5.00, 10.50, 20.00 and 25.00% sucrose by mass, then leaves the solutions outside. After some time has passed, the student counts the number of ants that are in each beaker. The independent variable for this experiment is the:...
i need help with questions 4, 5, 13, 15, 16 6 pts Question 4 Perform each...
i
need help with questions
4, 5, 13, 15, 16
6 pts Question 4 Perform each of the following calculations of the measured numbers and express your answer rounded to the appropriate number of significant figures. Only type the number for the final answer in the box (no units). a) 67.50 mL - 35.50 mL mL b) 5.35 cm x 10.00 cm x 0.50 cm = cm Question 5 4 pts A scientist defines a new unit, the mini-meter, which...
help with All 8 questions please Question 13 2 pts How many moles of carbon are...
help with All 8 questions please
Question 13 2 pts How many moles of carbon are there in 19.3 g of sucrose, CH120.? Use 180.16 g/mol as the mw of ose. Give your answer three decimal places. su Question 14 3 pts A sample of C6H12 has 34.5 g of carbon. How many moles of CH 12 are there? Use 12.01 g/mol as the mw of carbon and 84.16 g/mol as the mw of C6H12. Give your answer to three...
i need help with 27-30 Question 27 4 pts An atom has the ground state electron...
i need help with 27-30
Question 27 4 pts An atom has the ground state electron configuration of: 1s22s22p5. It has [Select) core electrons and Select) • valence electrons. Select the best answer Question 28 4 pts What amount of glucose is contained in 150.0 g of a 6.60% solution of aqueous glucose by mass? 6.60 g 1508 9.908 4.458 3.30 8 Question 29 4 pts A student has a saturated solution of sodium chloride, like the one in the...
i need help with all these questions please Question 23 4 pts Which of these liquids...
i need help with all these questions please
Question 23 4 pts Which of these liquids is most likely to have the lowest (slowest) rate of evaporation (g/min) and why? Select the single best answer. H H H HH :01 IH terbaru H 11 HHH cnc- 7 H H H ica H 나 Hit 4 c B A ΟΟΟΟΟΟ C, because it has the highest molar mass. A, because this molecule has the lowest molar mass.. B, because it has...
Question 8 1 pts If the last electron added to an atom can be described with...
Question 8 1 pts If the last electron added to an atom can be described with quantum number as n 4 and I= 1, which of the following is the correct electron configuration for the atom? [Ar14s23d10 [Ar14s3d5 [Ar14s23d104p2 INe]3s23p6 Question 9 1 pts Select ALL substances that have a tetrahedral molecular geometry. GeF4 SO2- BrO2 CIF5
Question 5 6 pts Write the ionic compound formula that is formed between a. The ionic...
Question 5 6 pts Write the ionic compound formula that is formed between a. The ionic compound (write only formula) that is formed between Potassium (K) and phosphorus (P) is b.. The ionic compound (write only formula) that is formed between Barium (Ba) and sulfur (S) is C.. The ionic compound (write only formula) that is formed between Aluminum (Al) and cyanide (CN1- ) is Question 8 8 pts ► ; Au is a/an [Select ] HNO3 is an [Select...
I need help with questions 1, 2, and 3! Thank you You are asked by your...
I need help with questions 1, 2, and 3!
Thank you
You are asked by your instructor to construct a model of the NH_2Cl molecule. Being of a conservative nature, you proceed as directed in the section on Experimental Procedure. First you need to find the number of valence electrons in NH_2Cl_2. For counting purposes with Lewis structures, the number of valence electrons in an atom of a main group element is equal to the last digit in the group...
Question 6 1 pts Consider a molecule of SF4, and determine if each of the following...
Question 6 1 pts Consider a molecule of SF4, and determine if each of the following statements is True or False. 1) In the best Lewis structure, the central atom satisfies the octet rule. [Select] 2) The molecular geometry and the electron geometry are the same. [Select) 3) The S-F bonds are polar covalent. (Select] 4) It is a nonpolar molecule. (Select] 5) The hybridization scheme around the central atom is sp. [Select)
oxidation question - please help me fill out all the blanks Question 3 6 pts When...
oxidation question - please help me fill out all the blanks
Question 3 6 pts When answering this question: • For the element being oxidized or reduced: use the standard abbreviation for elements (e.g. F for fluorine, Fe for iron), using the correct upper case or lower case letters. You are being asked for the element of an oxidized/reduced atom, not the name or formula for a molecule. Give oxidation numbers in the format such as "+1", "-2", "O" etc....
i need help with 2,4,5,8,9,10-12
6 pts Question 2 A student designs an experiment to test the hypothesis: "If a solution of sucrose in water has a higher concentration, it will attract more ants." The student makes sucrose solutions with concentrations of 1.00,5.00, 10.50, 20.00 and 25.00% sucrose by mass, then leaves the solutions outside. After some time has passed, the student counts the number of ants that are in each beaker. The independent variable for this experiment is the:...
i
need help with questions
4, 5, 13, 15, 16
6 pts Question 4 Perform each of the following calculations of the measured numbers and express your answer rounded to the appropriate number of significant figures. Only type the number for the final answer in the box (no units). a) 67.50 mL - 35.50 mL mL b) 5.35 cm x 10.00 cm x 0.50 cm = cm Question 5 4 pts A scientist defines a new unit, the mini-meter, which...
help with All 8 questions please
Question 13 2 pts How many moles of carbon are there in 19.3 g of sucrose, CH120.? Use 180.16 g/mol as the mw of ose. Give your answer three decimal places. su Question 14 3 pts A sample of C6H12 has 34.5 g of carbon. How many moles of CH 12 are there? Use 12.01 g/mol as the mw of carbon and 84.16 g/mol as the mw of C6H12. Give your answer to three...
i need help with 27-30
Question 27 4 pts An atom has the ground state electron configuration of: 1s22s22p5. It has [Select) core electrons and Select) • valence electrons. Select the best answer Question 28 4 pts What amount of glucose is contained in 150.0 g of a 6.60% solution of aqueous glucose by mass? 6.60 g 1508 9.908 4.458 3.30 8 Question 29 4 pts A student has a saturated solution of sodium chloride, like the one in the...
i need help with all these questions please
Question 23 4 pts Which of these liquids is most likely to have the lowest (slowest) rate of evaporation (g/min) and why? Select the single best answer. H H H HH :01 IH terbaru H 11 HHH cnc- 7 H H H ica H 나 Hit 4 c B A ΟΟΟΟΟΟ C, because it has the highest molar mass. A, because this molecule has the lowest molar mass.. B, because it has...
Question 8 1 pts If the last electron added to an atom can be described with quantum number as n 4 and I= 1, which of the following is the correct electron configuration for the atom? [Ar14s23d10 [Ar14s3d5 [Ar14s23d104p2 INe]3s23p6 Question 9 1 pts Select ALL substances that have a tetrahedral molecular geometry. GeF4 SO2- BrO2 CIF5
Question 5 6 pts Write the ionic compound formula that is formed between a. The ionic compound (write only formula) that is formed between Potassium (K) and phosphorus (P) is b.. The ionic compound (write only formula) that is formed between Barium (Ba) and sulfur (S) is C.. The ionic compound (write only formula) that is formed between Aluminum (Al) and cyanide (CN1- ) is Question 8 8 pts ► ; Au is a/an [Select ] HNO3 is an [Select...
I need help with questions 1, 2, and 3!
Thank you
You are asked by your instructor to construct a model of the NH_2Cl molecule. Being of a conservative nature, you proceed as directed in the section on Experimental Procedure. First you need to find the number of valence electrons in NH_2Cl_2. For counting purposes with Lewis structures, the number of valence electrons in an atom of a main group element is equal to the last digit in the group...
Question 6 1 pts Consider a molecule of SF4, and determine if each of the following statements is True or False. 1) In the best Lewis structure, the central atom satisfies the octet rule. [Select] 2) The molecular geometry and the electron geometry are the same. [Select) 3) The S-F bonds are polar covalent. (Select] 4) It is a nonpolar molecule. (Select] 5) The hybridization scheme around the central atom is sp. [Select)
oxidation question - please help me fill out all the blanks
Question 3 6 pts When answering this question: • For the element being oxidized or reduced: use the standard abbreviation for elements (e.g. F for fluorine, Fe for iron), using the correct upper case or lower case letters. You are being asked for the element of an oxidized/reduced atom, not the name or formula for a molecule. Give oxidation numbers in the format such as "+1", "-2", "O" etc....
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