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vodomira [7]
3 years ago
12

Adaptation: Question 1 Which best explains why a population of a certain species of moose , over five generations , developed fe

et that were two times wider than most moose population populations ?
1. The bogs the moose lived in became so soggy that only moose with the largest could successfully walk on the bog .
2 The bogs the moose lived in became so soggy that only moose with the smallest or the largest feet successfully walk on the bogs .
3.The bogs the moose lived in became so soggy that only moose with medium sized feet could successfully walk on the bogs
4. The bogs the moose lived in became so soggy that only moose with the smallest could successfully on the bogs .
Chemistry
1 answer:
slamgirl [31]3 years ago
4 0

Answer:

im doing this test lol

Explanation:

what is it?

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Use the periodic table to determine what element cesium-135 () becomes after beta decay.
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Answer:

D. _{56}^{135}\text{Ba}

Explanation:

Your unbalanced nuclear equation is

_{55}^{135}\text{Cs} \longrightarrow ? + _{-1}^{0}\text{e}

It is convenient to replace the question mark by an atomic symbol, _{x}^{y}\text{Z}, where <em>x</em> = the atomic number, <em>y</em> = the mass number, and <em>Z</em> = the symbol of the element .

Then your equation becomes

_{55}^{135}\text{Cs} \longrightarrow _{x}^{y}\text{Z} + _{-1}^{0}\text {e}

The main point to remember in balancing nuclear equations is that the sums of the superscripts and the subscripts must be the same on each side of the equation.  

Then

55 = <em>x</em> - 1, so <em>x</em> = 55 + 1 = 56

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Element 56 is barium, so the nuclear equation becomes

_{55}^{135}\text{Cs} \longrightarrow _{56}^{135}\text{Ba} + _{-1}^{0}\text{e}

4 0
3 years ago
Read 2 more answers
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