Which of the following represents a valid hypothesis? ANSWER: a.Metals tend to lose electrons. b.Lead is...
Which of the following represents a valid hypothesis?
ANSWER:
a.Metals tend to lose electrons.
b.Lead is soft and malleable.
c.Oxygen is a gas at room temperature.
d.Sodium metal reacts violently with water.
e.Neon does not react with oxygen.
Homework Answers
a.Metals tend to lose electrons. TRUE, they for positive cations
b.Lead is soft and malleable. TRUE, this is common in lead
c.Oxygen is a gas at room temperature. TRUE, since O2 is molecular
d.Sodium metal reacts violently with water. TRUE, Na + H2O --> Na(O) + H2
e.Neon does not react with oxygen. --> TRUE, since it is a noble gas
Add Answer to:
Which of the following represents a valid hypothesis?
ANSWER:
a.Metals tend to lose electrons.
b.Lead is...
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12. Fluorine atoms tend to..... .when they form chemical compounds with metals. a) lose electrons b) gain electrons (e) neither lose nor gain electrons..they usually share electrons equally with metals. Fluorine atoms do not form compounds with other atoms... .luorine is an inert gas. (d 13. The process in changing a solid to gas A. freezing B. condensation C. sublimation D. Deposition 14. What is the outermost orbital, electron and energy level for C. 7d1 Lu? A. 6D B. 6f4...
When main group coments react, they tend to acquire eight outer-shell electrons (n.snp"). This is called...
When main group coments react, they tend to acquire eight outer-shell electrons (n.snp"). This is called an octar, and it is a particularly stable configuration. Part A If the following elements were to form an ionic compound, which noble gas configuration would they most likely allain? Drag the appropriate elements to their respective bins. View Available Hints) Group Valence To attain octet 1A na lose one electron 217682 lose two electrons 3A np lose three electrons 5A musnp gain three...
Circle the answer. Which of the following incorrectly represents the flow of electrons in the hydride reduction of...
Circle the answer. Which of the following incorrectly represents the flow of electrons in the hydride reduction of an aldehyde with NaBH? нсHн I I H-B-H I--I H-B-H R
lose your internet connection, or exit the exam for another reason, you can get back into the exam, however the ti...
lose your internet connection, or exit the exam for another reason, you can get back into the exam, however the time will not stop Question 1 4 pts Which of the following is a physical property of a substance? Methanol, CH,OH, and water mix to make a homogeneous mixture Hydrogen gas is flammable Silverion is reduced to silver metal by a more active metal HCl can be neutralized by NaOH Gold does not react with water. Question 2 4 pts...
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2. Which one of the following statements is Following statements is not a valid scientific hypothesis?...
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Which of the following is true of nonane, C9H20, which has a density of 0.79 g/ml,...
Which of the following is true of nonane, C9H20, which has a density of 0.79 g/ml, melts at -51°C, and boils at 151 °C? 0 Nonane is a gas at room temperature Nonane does not undergo combustion. Nonane floats on the surface of water. Nonane is a solid at room temperature Nonane is soluble in water.
Which of the following is true of nonane, CH20, which has a density of 0.79 g/ml,...
Which of the following is true of nonane, CH20, which has a density of 0.79 g/ml, melts at -51 °C, and boils at 151 "C? Nonane is a gas at room temperature. Nonane does not undergo combustion. Nonane floats on the surface of water Nonane is a solid at room temperature, O Nonane is soluble in water
please answer both. I just need these two last questions and there due at midnight. Oxygen gas can be prepared by h...
please answer both. I just need these two last questions and
there due at midnight.
Oxygen gas can be prepared by heating potassium chlorate according to the following equation 2KCIO3(s) *2KCI(s) + 302(g) The product gas, O2, is collected over water at a temperature of 25 °C and a pressure of 747 mm Hg. If the wet O2 gas formed occupies a volume of 6.91 L, the number of grams of O, formed is g. The vapor pressure of water...
can anyone explain and answer 5 and 6 please 4. Which of the following properties is...
can anyone explain and answer 5 and 6 please
4. Which of the following properties is typical of octane? a) It is a gas at room temperature b) It is soluble in hexane c) It is soluble in water d) It has a density of about 1.5 g/mL e) It is a liquid due to dipole-dipole interactions 5. Which of the following has the lowest boiling point? a)2-methylhexane b) 2,3-dimethylbutane c) octane d) 2,3,4-trimethylpentane e) 2,3,4,5-tetramethylhexane 6. Which of the...
12. Fluorine atoms tend to..... .when they form chemical compounds with metals. a) lose electrons b) gain electrons (e) neither lose nor gain electrons..they usually share electrons equally with metals. Fluorine atoms do not form compounds with other atoms... .luorine is an inert gas. (d 13. The process in changing a solid to gas A. freezing B. condensation C. sublimation D. Deposition 14. What is the outermost orbital, electron and energy level for C. 7d1 Lu? A. 6D B. 6f4...
When main group coments react, they tend to acquire eight outer-shell electrons (n.snp"). This is called an octar, and it is a particularly stable configuration. Part A If the following elements were to form an ionic compound, which noble gas configuration would they most likely allain? Drag the appropriate elements to their respective bins. View Available Hints) Group Valence To attain octet 1A na lose one electron 217682 lose two electrons 3A np lose three electrons 5A musnp gain three...
Circle the answer. Which of the following incorrectly represents the flow of electrons in the hydride reduction of an aldehyde with NaBH? нсHн I I H-B-H I--I H-B-H R
lose your internet connection, or exit the exam for another reason, you can get back into the exam, however the time will not stop Question 1 4 pts Which of the following is a physical property of a substance? Methanol, CH,OH, and water mix to make a homogeneous mixture Hydrogen gas is flammable Silverion is reduced to silver metal by a more active metal HCl can be neutralized by NaOH Gold does not react with water. Question 2 4 pts...
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2. Which one of the following statements is Following statements is not a valid scientific hypothesis? d. Our universe is surrounded by another, larger universe, with WHICH we can have absolutely no contact . Any two objects dropped from the same height above the surface of the earth will hit the ground at the same time, as long as air resistance is not a factor. Justify your answer. 3. Is it possible for a valid scientific hypothesis to be incorrect?...
Which of the following is true of nonane, C9H20, which has a density of 0.79 g/ml, melts at -51°C, and boils at 151 °C? 0 Nonane is a gas at room temperature Nonane does not undergo combustion. Nonane floats on the surface of water. Nonane is a solid at room temperature Nonane is soluble in water.
Which of the following is true of nonane, CH20, which has a density of 0.79 g/ml, melts at -51 °C, and boils at 151 "C? Nonane is a gas at room temperature. Nonane does not undergo combustion. Nonane floats on the surface of water Nonane is a solid at room temperature, O Nonane is soluble in water
please answer both. I just need these two last questions and
there due at midnight.
Oxygen gas can be prepared by heating potassium chlorate according to the following equation 2KCIO3(s) *2KCI(s) + 302(g) The product gas, O2, is collected over water at a temperature of 25 °C and a pressure of 747 mm Hg. If the wet O2 gas formed occupies a volume of 6.91 L, the number of grams of O, formed is g. The vapor pressure of water...
can anyone explain and answer 5 and 6 please
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