Answer:
The weight changes, but his or her mass does not.
Explanation:
The true statement from the given choices about an astronaut traveling from planet to planet is that the weight changes but his or her mass does not.
This is due to the difference in acceleration due gravity from one planet to the other.
- Mass is the amount of matter present within a substance.
- Weight is the vertical force on a body due to its mass and acceleration due gravity
Gravity from one planet to the other differs significant and so is the weight.
Answer:
b. hydride shift from C-3 to C-2.
Explanation:
Markovnikov's rule states that *in the addition of a protic acid HX or other polar reagent to an asymmetric alkene, the acid hydrogen (H) or electropositive part gets attached to the carbon with more hydrogen substituents, and the halide (X) group or electronegative part gets attached to the carbon with more alkyl substituents* (wikipedia).
This rule implies that the hydrogen of HBr will be attached to C-1 and the carbocation will be on C-2. Remember that the order of stability of carbocations is tertiary > secondary > primary > methyl. A hydride shift can yield a tertiary carbocation.
C-3 is a tertiary carbon atom. If the hydride on carbon 3 shifts to carbon 2, a tertiary and more stable carbocation is formed. This accounts for the major product in the reaction.
Answer:
(Question 5) examine and describe cells
Explanation:
The microscope was only made to view cells/materials up close. Not any of those other answers....
Answer:
color, shape, texture, odor, sound, malleability, ductility, volume, mass, density, boiling point, melting point, viscosity, hardness, conductility.
Explanation:
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