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Ilia_Sergeevich [38]
2 years ago
9

Will give brainliest, to whoever gets right. If you do a random answer I will report it.

Chemistry
1 answer:
KengaRu [80]2 years ago
3 0

The correct Answer:( Neither)

Explanation:

Have great day

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Plutonium−239 (t1/2 = 2.41 × 104 yr) represents a serious nuclear waste hazard. if seven half-lives are required to reach a tole
dimulka [17.4K]
The half-life of Plutonium−239, t1/2 is 2.41 × 10⁴<span> yrs

time taken to reach tolerable level = seven half-lives
                                                      = 7 x t1/2
                                                      = 7 x </span>2.41 × 10⁴ yrs
                                                      = 168700 yrs
                                                      = 1.687 x 10⁵ yrs

Hence, the period of time that <span>Plutonium-239 must be stored is </span>1.687 x 10⁵ years.
5 0
3 years ago
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What is the molecular geometry of COF2?
maxonik [38]

Answer:

trigonal planar

Explanation:

5 0
3 years ago
Jane is sliding down a slide. What kind of motion is she demonstrating?
Alex Ar [27]
Im pretty sure it would be kinetic <span />
8 0
4 years ago
Which acid is almost completely ionized in a dilute solution at 298k?
Alex777 [14]
Considering choices; 
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b. H2S
c. H2PO4
d. HNO3
The answer would be HNO3; this is because it the strongest acid. Strong acids are acids that are fully ionized while weak acids are only partially ionized. At the same concentrations, strong acids have a higher concentration of hydrogen than weak acids. Examples of strong acids include; hydrocloric acid and nitric acid, while weak acids include; ethanoic acids. 
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4 years ago
Every reduction reaction MUST be accompanied by
Dafna1 [17]

Answer:

oxidation reaction.

Explanation:

Every reduction reaction must be accompanied by an oxidation reaction.

Oxidation leads electrons loss whereas reduction implies gain of electrons. So missing electrons should always be the equivalent of obtained electrons. Without something acquiring electrons there can't be any loss. Electrons can't simply disappear!

It implies, but, that oxidation and reduction must occur simultaneously at different locations and the electrons can commute across cables or in a liquid medium by ions.

7 0
3 years ago
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