This diagram illustrates an early model that explained observations about the solar system. Based on the current understanding of the solar system, what is a fundamental error of this model?

A. Venus has a larger orbit than Mercury

B. The Moon is shown too close to Earth

C. Earth is shown as the center of the solar system.

D. The orbit of Mars is located inside the orbit of Jupiter.

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

What are fructose and glucose an example of?

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.)