Remove three incorrect answers from the equation. Always be aware of your errors. Pay attention to the connotation and context of what you're saying. Use Make the most of the evidence questions. Read passages in a strategic manner. Passage Introductions Should Not Be Ignored. Become engrossed in the passages. Before taking the test, read the section instructions. First, answer the questions you already know the answers to. Remove any wrong responses. Maintain a tidy appearance. Keep an eye out for stray marks. The majority of the time, your initial response is correct. There is just one response that is correct.
The reason why iron oxide has more mass than the iron is because Iron oxide has oxygen atoms, and pure iron does not.
When iron rusts and forms iron oxide, the iron oxide has more mass than the iron. Which statement correctly explains this
observation?
(A)Iron oxide has oxygen atoms, and pure iron does not.
(B)The oxygen atoms in iron oxide have more mass than the iron atoms in pure iron.
(C)The iron atoms in iron oxide have more mass than pure iron.
(D)There are more iron atoms in iron oxide than in pure iron.
When a chemical reaction takes place, other atoms are combined with pure elements to form compounds. This addition of another atom (oxygen) after reaction makes iron oxide formed heavier than pure iron.
Iron oxide is a chemical substance formed when pure iron rusts. The formation of iron oxide is a chemical reaction.
Hence, the correct answer to the question is; the iron is heavier because Iron oxide has oxygen atoms, and pure iron does not.
Learn more: brainly.com/question/6284546
Answer:
food chain? circle of life?
Explanation:
<span>c) Ed and Ethel take reservations, clean rooms, and make breakfast, while Mark delegates these tasks to several hotel workers.
As a director of a large organization, Mark will largely delegate his management tasks to other employees. As small business owners, Ed and Ethel will be involved in daily operations of their business.</span>