Acelestial body has these properties:

it is too small to clear objects that are in its orbital path.
it has a rocky surface but no rings.
what could the celestial body be?

a. jupiter
b. mars
c. neptune
d. pluto
e. an artificial satellite

i think the answer is pluto.
pluto is a celestial body with a rocky surface, no rings, and is too small to clear that are in its orbital path

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

Identify a specific example for each type of technology

Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)