H2so4, sulfuric acid, contains three different types of atoms: hydrogen (h), sulfur (s), and oxygen (o). each of these atoms represents a different . since the three types are combined in a fixed ratio, this means that h2so4 is a(n):

Different elements. H2SO4 is a compound.

Explanation:

Element are the simplest substances and can't be broken down. Is a substance whose atoms all have the same number atomic number. The atomic number indicates the number of protons in the nucleus, and in a neutral atom it has the same number of neutrons. Therefore, for example, hydrogen is an element because it is an atom with a certain atomic number.

On the other hand, a compound is a mixture composed of two or more different elements. So, H2SO4 is made of three different elements, then it is a compound.

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

answer: they produce more slow than unicellular organisms.