Assinale a alternativa que completa corretamente as lacunas apresentadas na frase abaixo: (0,5) J. J. Thomson "O modelo de Thomson propõe que o átomo seria uma estrutura , formado por uma esfera com carga distribuída de forma e incrustada por cargas. " (A) divisível, neutra, homogênea, negativas (B) indivisível, positiva, homogênea, negativas (C) divisível, positiva, heterogênea, negativas (D) indivisível, negativa, heterogênea, positivas (E) divisível, positiva, homogênea, negativas

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth