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3 years ago

5

Why don't we use the plutonium (Pu) from reprocessed/used nuclear fuel? There are 2 correct answers. (this is for my earth scien

ce, it's an edpuzzel)

1 answer:

meriva3 years ago

7 0

Answer:

Erosion, and soil damage

Explanation:

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Surface tension ________________________.

Alex73 [517]

C) is higher for nonpolar substances than for polar ones

6 0

3 years ago

An element consists of 5.85% of an isotope with mass 53.940 u, 91.75% of an isotope with mass 55.9349 u, 2.12% of an isotope wit

Gemiola [76]

Answer:

The answer to your question is: 55.84 u. The element is Iron

Explanation:

isotope 1 mass 53.94 u abundance 5.85%

2 mass 55.9349 abundance 91.75%

3 mass 56.9354 abundance 2.12%

4 mass 57.9333 abundance 0.28%

average atomic mass = (53.94 x 0.0585) + (55.9349 x 0.9175) + (56.9354 x 0.0212) + (57.9333 x 0.0028)

average atomic mass = 3.155 + 51.32 + 1.207 + 0.1622

average atomic mass = 55.84 u. The element is Iron

4 0

3 years ago

A solution is prepared at 25°C that is initially 0.18 M in methylamine (CH3NH2), a weak base with Kb = 4.4 x 10^-4, and 0.35 M i

nlexa [21]

Answer:

pH of the solution is 10.37

Explanation:

$pOH=pkb+log\frac{[salt]}{[base]}$

kb = $4.4 \times 10^{-4}$

pkb = -log kb

= $-log4.4 \times 10^{-4}$

= 3.35

salt is methylammonium bromide and methylamine is base

Substitute the values in the above expression as follows:

$pOH=pkb+log\frac{[salt]}{[base]} \\=3.35+log\frac{0.35}{0.18} \\=3.35+0.28\\=3.63$

pH = 14 - pOH

= 14 - 3.63

= 10.37

pH of the solution is 10.37

3 0

3 years ago

Dalton theorized that atoms are indivisible and that all atoms of an element are identical. Scientists now know that

malfutka [58]

This is easy the answer is c

8 0

4 years ago

Read 2 more answers

Deleted<br>i guess i have another question

Fudgin [204]

Answer:

i got it

Explanation:

8 0

3 years ago