Answer:
Melting ice speeds up climate change.
Explanation:
The Arctic helps to regulate the world's temperature, so as more Arctic ice melts the warmer our world becomes.
Answer:
false
Explanation:
there are more than 2 forces of nature that change the environment and landforms
Answer/Explanation:
A theory has lots of scientific evidence to back it up. We know this to be true based on lots of different diseases and studies of their spread.
A hypothesis is more of a starting point - an educated guess based on limited evidence. It requires further testing before becoming a theory.
A law is something that can be generalized to lots of contexts, and is universal. Such as the law of thermodynamics.
21.4 g Al * (1 mol / 26.98 g ) * (2 mol Fe / 2 mol Al) = 0.793 mol Fe
91.3 g Fe2O3 * (1 mol / 159.69 g) * (2 mol Fe / 1 mol Fe2O3) = 1.14 mol Fe
0.793 mol Fe * (55.85 g / 1 mol) = 44.3 g Fe produced.
So basically, Mg(OH)2 has the following:
1 magnesium atom
2 hydrogen atoms
2 oxygen atoms
Therefore, 3Mg(OH)2 will have:
1 x 3 = 3 magnesium atoms
2 x 3 = 6 hydrogen atoms
2 x 3 = 6 hydrogen atoms