Although the complete chemical equation was not stated in the question, I can infer that Ag or silver is one of the reactants. This is because silver is not typically produced by chemical reactions, rather, it is sourced from mining silver ores. Also, the last option mentions the production of silver sulfide. This means that the chemical reaction referred to is: 2Ag + H₂S →Ag₂S + H₂. Thus, the 2 in 2Ag tells us that t<span>wo atoms of silver are lost in this reaction.</span>
Answer:
moles CO2 = 0.065 moles
Explanation:
- mole = 6.022 E23 molecules.....Avogadro
∴ molecules CO2 = 3.9 E22 molecules
⇒ moles CO2 = (3.9 E22 molecules CO2)×( moles CO2/ 6.022 E23 molecules CO2)
⇒ moles CO2 = 0.065 moles
This question is basically asking us to convert the volume from mL to kL.
We can do this by setting up a multiplication problem and cancelling out units:
So now we know that
the Bay water will occupy 1.25x10^-4 kL.
Answer:
Explanation:
Isotopes are atoms of elements that have the same atomic number but different mass number hence ISOTOPY. Radioactive Isotopes on the other hand are unstable as they either undergo Alpha decay, beta decay or gamma decay compared to stable isotopes.
Radioactive elements decay at varyinf rates as such the rate of radioactive decay is used in the characterization of radioactive element and mostly expressed in terms of the half life of the radioactive elements.
Half life is the time taken for half of the total atoms of an elements to decay into half of its initial sizes. for example, the half life of radium-226 is 1622 years, it implies that if we have 1000000 radium atoms at the beginning, then at the end of 1622years, 500000 would have disintegrated. These phenomenon can never be experienced by stable isotopes as such they can not be used in carbon dating techniques. reason why uranium-238 is mostly and commonly used in the earth crust to estimate the ages of rocks because it has a half life of 4.5 x 10^9 years.
And also, the radioactive isotopes of most common light element are short, they have very short half life (few days or weeks) and they decay rapidly to vanshing point, as such, they are not found in nature to any reasonable extent.
Metal is a great conductor of heat while rope does not collect heat from the radiation from the sun as much or contain it while if metal is out in the sun all day it just keeps getting hotter and hotter and when you touch the rope it does not have much heat to transfer but the metal slide is hot enough to irritate your skin
<span />
