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uranmaximum [27]
3 years ago
14

I’m so confused on this one!

Chemistry
1 answer:
stellarik [79]3 years ago
5 0

The correct answer is 1) Ag, Si, I₂

Ag or silver is a metal. Silver is a transition element which lies in the d-block of the periodic table.

Si or silicon is a metalloid. Silicon is a metalloid which lies in the p-block of the periodic table.

I₂ or iodine is a nonmetal. Iodine is a halogen which lies in group 17 of the periodic table. All halogens are nonmetals.

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A very old tree limb contains an amount of carbon-14 that is approximately 1/8 of the current atmospheric 14C levels.. Calculate
Tomtit [17]

A.       The radioactive decay equation is N = N0e^{-ln(2)*t/T }

where T is the half-life (5730 years), N0 is the number of atoms at time t = 0 and N is the number at time t.

Rewriting this as:

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3 0
3 years ago
The total bonding energy for the products of a reaction is 2535 kJ/mol and the bonding energy of the reactants is 1375 kJ/mol. C
Dmitry [639]

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7 0
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A student is worried about determining if a chemical is radioactive. Which
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Hazards identification: states the hazards of the chemical and the necessary warnings regarding the hazards. Some of the information provided include: hazard classification of the chemical (for example flammable liquid, oxidizing gases,explosives, etc), signal word, hazard statement (for example radioactive), pictograms, precautionary statements, etc.

<em>From the above information provided, the student should refer to the hazards identification section.</em>

8 0
3 years ago
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