Which of these could occur if energy is removed from a system? [Select all that apply.]...
Which of these could occur if energy is removed from a system? [Select all that apply.]
a.liquids can be converted to gases
b.average kinetic energy will increase
c.gases can be converted to liquidss
d.gases can be converted to solids
e.liquids can be converted to solids
f.solids can be converted to liquids
g.solids can be converted to gases
h.average kinetic energy will decrease
Homework Answers
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Which of these could occur if energy is removed from a system?
[Select all that apply.]...
Which of the following are not properties of ideal gases? [Select all that apply.] The gas...
Which of the following are not properties of ideal gases? [Select all that apply.] The gas molecules repel one another The gas molecules experience elastic collisions Kinetic energy is converted into potential energy when the gas molecules collide The gas molecules form dispersion forces with one another. The gas molecules form hydrogen bonds with each other The gas molecules are physically large, occupying a significant volume of space relative to the volume of their container.
Which of the following statements are true? [Select all that apply.] The average kinetic energy of...
Which of the following statements are true? [Select all that apply.] The average kinetic energy of a gas increases as temperature increases. The average kinetic energy of a gas depends on the masses of the gas molecules. The average kinetic energy of a gas depends on the temperature of the gas. The average kinetic energy of a gas depends on the identity of the gas. A sample of carbon dioxide and a sample of hellum would have the same average...
To study the emmission lines from different elements, we cannot use a spectrometer like the Spec20...
To study the emmission lines from different elements, we cannot use a spectrometer like the Spec20 used in lab that shines through the sample. what can a Spec 20 be used for? (Select all that apply) - colored gases - colored solids - colored liquids - colorless gases - colorless solids - colorless liquids - measuring an absorption spectrum - measuring an emmission spectrum
Question 2 2 pts To study the emission lines from different elements, we cannot use a...
Question 2 2 pts To study the emission lines from different elements, we cannot use a spectrometer like the Spec 20 used in lab that shines light through the sample. What can a Spec 20 be used for? Select all that apply. Colorless solids Colorless liquids Colorless gases Measuring an absorption spectrum Colored liquids Colored gases Measuring an emission spectrum Colored solids
please select all that apply Which of the following statements are true about an annuity? (select...
please select all that apply
Which of the following statements are true about an annuity? (select all that apply - i.e. just one or as many as all of them) It is a series of equal payments made at regular intervals The present value can be calculated without using a time-value table, simply by adding up all the payments The payment amount can increase over time Payments must occur on an annual basis
Which of the following occur as the nervous system ages? Check all that apply. Check All...
Which of the following occur as the nervous system ages? Check all that apply. Check All That Apply The cortex thickens. Brain weight decreases. Neurons contain increased rough ER. Neurofibrillary tangles appear.
Which of the following are true about radiation of heat? Mark all that apply. The rate...
Which of the following are true about radiation of heat? Mark all that apply. The rate of energy transfer is proportional to the surface area of the object Radiation occurs when mass at one temperature transfers to a different location Radiation can transfer heat through empty space (vacuum) Radiation is a result of the collisions between molecules in two different objects at two different temperatures Which of the following characteristics describe good thermal conductors? Mark all that apply. High thermal...
Select all that apply. Atom A reacts with molecule BC according to the following reaction: 10...
Select all that apply. Atom A reacts with molecule BC according to the following reaction: 10 points A + BC → products If an atom of A collides with a molecule of BC, but no reaction occurs, what are the possible reasons why? Select all that apply. A. The reactants are moving too rapidly for the reaction to occur. B. There are too few of one of the reactants for the reaction to occur. c. The reactants did not collide...
Which medications work to inhibit the effects of the parasympathetic system? (Select all that apply.) Atropine...
Which medications work to inhibit the effects of the parasympathetic system? (Select all that apply.) Atropine (AtroPen) Cevimeline (Evoxac) Bethanechol (Urecholine) Physostigmine (Antilirium) Ipratropium bromide (Atrovent) What can cause cholinergic crisis? (Select all that apply.) Understimulation of the parasympathetic nervous system Pralidoxime chloride (2-PAM) poisoning Insecticide poisoning Sarin poisoning Overdosage of AChE inhibitors
Which of the following scenarios could cause the price of good or service to decrease? (Check all that apply.)
Which of the following scenarios could cause the price of good or service to decrease? (Check all that apply.) decrease in demand; increase in supply decrease in demand; no change in supply no change in demand; increase in supply increase in demand; no change in supply no change in demand; decrease in supply increase in demand; decrease in supply increase in demand; increase in supply decrease in demand; decrease in supply
Which of the following are not properties of ideal gases? [Select all that apply.] The gas molecules repel one another The gas molecules experience elastic collisions Kinetic energy is converted into potential energy when the gas molecules collide The gas molecules form dispersion forces with one another. The gas molecules form hydrogen bonds with each other The gas molecules are physically large, occupying a significant volume of space relative to the volume of their container.
Which of the following statements are true? [Select all that apply.] The average kinetic energy of a gas increases as temperature increases. The average kinetic energy of a gas depends on the masses of the gas molecules. The average kinetic energy of a gas depends on the temperature of the gas. The average kinetic energy of a gas depends on the identity of the gas. A sample of carbon dioxide and a sample of hellum would have the same average...
To study the emmission lines from different elements, we cannot use a spectrometer like the Spec20 used in lab that shines through the sample. what can a Spec 20 be used for? (Select all that apply) - colored gases - colored solids - colored liquids - colorless gases - colorless solids - colorless liquids - measuring an absorption spectrum - measuring an emmission spectrum
Question 2 2 pts To study the emission lines from different elements, we cannot use a spectrometer like the Spec 20 used in lab that shines light through the sample. What can a Spec 20 be used for? Select all that apply. Colorless solids Colorless liquids Colorless gases Measuring an absorption spectrum Colored liquids Colored gases Measuring an emission spectrum Colored solids
please select all that apply
Which of the following statements are true about an annuity? (select all that apply - i.e. just one or as many as all of them) It is a series of equal payments made at regular intervals The present value can be calculated without using a time-value table, simply by adding up all the payments The payment amount can increase over time Payments must occur on an annual basis
Which of the following occur as the nervous system ages? Check all that apply. Check All That Apply The cortex thickens. Brain weight decreases. Neurons contain increased rough ER. Neurofibrillary tangles appear.
Which of the following are true about radiation of heat? Mark all that apply. The rate of energy transfer is proportional to the surface area of the object Radiation occurs when mass at one temperature transfers to a different location Radiation can transfer heat through empty space (vacuum) Radiation is a result of the collisions between molecules in two different objects at two different temperatures Which of the following characteristics describe good thermal conductors? Mark all that apply. High thermal...
Select all that apply. Atom A reacts with molecule BC according to the following reaction: 10 points A + BC → products If an atom of A collides with a molecule of BC, but no reaction occurs, what are the possible reasons why? Select all that apply. A. The reactants are moving too rapidly for the reaction to occur. B. There are too few of one of the reactants for the reaction to occur. c. The reactants did not collide...
Which medications work to inhibit the effects of the parasympathetic system? (Select all that apply.) Atropine (AtroPen) Cevimeline (Evoxac) Bethanechol (Urecholine) Physostigmine (Antilirium) Ipratropium bromide (Atrovent) What can cause cholinergic crisis? (Select all that apply.) Understimulation of the parasympathetic nervous system Pralidoxime chloride (2-PAM) poisoning Insecticide poisoning Sarin poisoning Overdosage of AChE inhibitors
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