Answer:
Elements are made of only one kind of atom
Compounds are made of 2 or more elements chemically bonded together
Explanation:
Its right there????
<span>At room temperature and atmospheric pressure, nothing happens when the two gasses are mixed. However, at high temperature and pressure (450C, 200atm), in the presence of an iron oxide catalyst, the production of ammonia is thermodynamically advantageous.</span>
Answer:
A. All of the other answers are correct
Explanation:
Each pairs are from the same elements, meaning they share the same atomic number but different nucleon number (neutron number + atomic number). Thus, all of the answers are correct.
The three concerns that the residents of this area might be:
1) <span>The cost of not moving forward is extremely high, so they opposed the plan, as they think it would affect US economy
2) </span><span>Nuclear waste disposal capability is an environmental imperative, so their environment would be polluted by very radioactive materials.
3) </span>Demand for new nuclear plants also demands disposal capability which supports national security but again, their site will be no longer for them. But unfortunately, <span>Extensive studies consistently show Yucca Mountain to be a sound site for nuclear waste disposal so the plan can't be abolished.
Hope this helps!</span>
The correct answer for this question is
20.2 g silver placed in 21.6 mL of water and 12.0 g silver placed in 21.6 mL of water.
15.2 g copper placed in 21.6 mL of water and 50.0 g copper placed in 23.4 mL of water.
11.2 g gold placed in 21.6 mL of water and 14.9 g gold placed in 23.4 mL of water.
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