Can someone please explain why the answer is the answer and the other choices are true....
Can someone please explain why the answer is the answer and the other choices are true. PLease dont just give me the answer
5) Which of the following statements about extraction is false?
A) The extraction solvent should form an emulsion with the aqueous phase
B) The extraction solvent should be immiscible with the aqueous phase
C) The extraction solvent should have a different density than the aqueous phase
D) Multiple extractions are more productive than one extraction
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Can someone please explain why the answer is the answer and the
other choices are true....
Can someone explain 23 and 25 please with an explanation? Read the directions before solving. Directions:...
Can someone explain 23 and 25 please with an explanation? Read the
directions before solving.
Directions: Each question below consists of two statements, I in the left-hand column and II in the right-hand column. For each question, determine whether statement I is true or false and whether statement II is true and false and fill in the corresponding T or F circles on your answer sheet. Eill in circle E only if statement Ilis a.correct c 18. In aqueous solution,...
The answer is C. Can someone give me a detailed explanation of why the first statement...
The answer is C. Can someone give me a detailed explanation of
why the first statement is false?
2. [2 marks] Consider the following two statements: I. Nominal GDP in a year is always larger than real GDP in the same year if there is inflation. II. The quantities produced of nominal GDP in a year and the quantities produced of real GDP in the same year are always the same A. Statement I. is TRUE and Statement II. is...
can someone please help me answer these questions? 82) If you hold two objects that have...
can
someone please help me answer these questions?
82) If you hold two objects that have the same weight density, then they A) may have unequal mass densities. PB) are equal in weight. C) have equal mass densities. 69) 69) Which of the following statements is true? A) a large atom can be photographed with the aid of an ordinary microscope B) an atom is the smallest particle known to exist C) there are only about 100 different kinds of...
MAY SOMEONE PLEASE ASSIST ME... I DO NOT UNDERSTAND THIS... IT'S A 'SELECT AN ANSWER Qs'.......
MAY SOMEONE PLEASE ASSIST ME... I DO NOT UNDERSTAND THIS... IT'S A 'SELECT AN ANSWER Qs'.... (there's multiple parts to this) I'll post the questions and afterwards below are the answers to 'SELECT FROM' (To make it easier i'll just label the Questions "A, B, C, D " THANK YOU IN-ADVANCE!! Match the correct answers. Question: A) In the Copper Cycle, why did the addition of Zn (s) cause Cu2+ ions to form Cu (s)? B) In the Copper Cycle...
HI CAN SOMEONE HELP ME WITH THIS 2 QUESHTIONS PLEASE ITS URGENTLY I DONT UNDER STAND...
HI CAN SOMEONE HELP ME WITH THIS 2 QUESHTIONS PLEASE ITS URGENTLY I DONT UNDER STAND THEM.!!!!!!! my school school closed and I need help rapidly 1.A successful scientific theory will remain unchanged over time. True False 2.The value of a conversion factor is: always less than one. always equal to one. always greater than one. variable, depending on the units involved.
the answer is False. but I dont know why. can you explain for me? individuals in...
the answer is False. but I dont know why. can you explain for
me?
individuals in the population that have different phenotypes. 22. True (A) or False (B): A trait such as human height that is controlled by many genes working together will exhibit normal Mendelian inheritance that you can predict with a 2x2 Punnett square. the nanatin inheritance of hair length and hair color in cats. Cats can
Can someone please explain to me, why the current affects the x ray image contrast and...
Can someone please explain to me, why the current affects the x ray image contrast and the density of the x ray image? Also then again why would does the voltage affect these contrast and density. Would they affect the x ray image in any other ways And also what specific factors would you use these for in medical imaging using x rays - e.g. mammography, imaging of the lungs, please don't just state what, but explain why as well?
A. True/False - (3 points each). If the answer is false explain why below the question...
A. True/False - (3 points each). If the answer is false explain why below the question 1. CH Cl2 would have a lower vapor pressure than CaHio 2. For a 1 mole sample of gas at constant volume, the pressure will double when the temperature doubles. 3. If 18.02 g of hydrogen gas are mixed with 40.00 g of oxygen gas to form water vapor, hydrogen is the limiting reagent. 4. A metal with a simple (primitive) cubic structure has...
can you answer #s 2, 3, and 4 please 2. You have a solution of a...
can you answer #s 2, 3, and 4 please
2. You have a solution of a phenol and a carboxylic acid dissolved in dicholormethane (density: 1.325 g/mL) What aqueous solution could you use to extract just the carboxylic acid? Explain. (4 points) a. b. During the extraction described above, which layer would be the top/bottom? Why? (3 points) 3. Why is it important to add a drying agent like anhydrous sodium sulfate to an organic layer (solution) that was just...
some of these choices can be used more than once. please explain each answer Choices: rRNA,...
some of these choices can be used more than once. please
explain each answer
Choices: rRNA, TRNA, miRNA, mRNA Typically forms internal base pairs to form a "cloverleaf" structure The primary transcript is larger than the final, mature form Associates with proteins to form the ribosome Rrosha is needed to process this form of RNA Contains protein-coding regions This form of RNA contains the largest variety of nucleotide modifications SNORNAs are used to guide modifications of this form of RNA...
Can someone explain 23 and 25 please with an explanation? Read the
directions before solving.
Directions: Each question below consists of two statements, I in the left-hand column and II in the right-hand column. For each question, determine whether statement I is true or false and whether statement II is true and false and fill in the corresponding T or F circles on your answer sheet. Eill in circle E only if statement Ilis a.correct c 18. In aqueous solution,...
The answer is C. Can someone give me a detailed explanation of
why the first statement is false?
2. [2 marks] Consider the following two statements: I. Nominal GDP in a year is always larger than real GDP in the same year if there is inflation. II. The quantities produced of nominal GDP in a year and the quantities produced of real GDP in the same year are always the same A. Statement I. is TRUE and Statement II. is...
can
someone please help me answer these questions?
82) If you hold two objects that have the same weight density, then they A) may have unequal mass densities. PB) are equal in weight. C) have equal mass densities. 69) 69) Which of the following statements is true? A) a large atom can be photographed with the aid of an ordinary microscope B) an atom is the smallest particle known to exist C) there are only about 100 different kinds of...
the answer is False. but I dont know why. can you explain for
me?
individuals in the population that have different phenotypes. 22. True (A) or False (B): A trait such as human height that is controlled by many genes working together will exhibit normal Mendelian inheritance that you can predict with a 2x2 Punnett square. the nanatin inheritance of hair length and hair color in cats. Cats can
A. True/False - (3 points each). If the answer is false explain why below the question 1. CH Cl2 would have a lower vapor pressure than CaHio 2. For a 1 mole sample of gas at constant volume, the pressure will double when the temperature doubles. 3. If 18.02 g of hydrogen gas are mixed with 40.00 g of oxygen gas to form water vapor, hydrogen is the limiting reagent. 4. A metal with a simple (primitive) cubic structure has...
can you answer #s 2, 3, and 4 please
2. You have a solution of a phenol and a carboxylic acid dissolved in dicholormethane (density: 1.325 g/mL) What aqueous solution could you use to extract just the carboxylic acid? Explain. (4 points) a. b. During the extraction described above, which layer would be the top/bottom? Why? (3 points) 3. Why is it important to add a drying agent like anhydrous sodium sulfate to an organic layer (solution) that was just...
some of these choices can be used more than once. please
explain each answer
Choices: rRNA, TRNA, miRNA, mRNA Typically forms internal base pairs to form a "cloverleaf" structure The primary transcript is larger than the final, mature form Associates with proteins to form the ribosome Rrosha is needed to process this form of RNA Contains protein-coding regions This form of RNA contains the largest variety of nucleotide modifications SNORNAs are used to guide modifications of this form of RNA...
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