Answer:
c sodium
Explanation: sodium element is likely to have the highest thermal conductivity.
I think it is d. Because the process is not reversible and it a chemical process
Answer:
a. the electrons shared between the oxygen and hydrogen atoms spend more time around the oxygen atom nucleus than around the hydrogen atom nucleus.
Explanation:
Water molecule is a polar molecule , and hence , the atom can attain the respective partial positive and negative charge on them .
The difference in the electronegativity gives rise to the partial positive and negative charge .
Since , oxygen atom is more electronegative in comparison to hydrogen atom , and hence , slightly pulls the electrons towards itself , and attains partial negative charge , and correspondingly , the hydrogen atom attains partial positive charge .
Hence , from the question ,
The correct option is a.
Chemicals are found in all things. Solids, liquids, and gases.
Answer:
C) Ar-37
Explanation:
A positron is a positively charged electron. It has the same mass as that of an electron, but opposite charge. It is the counterpart of an electron.
The reaction involving the emission of a positron by k-37 would produce a Ar-37, which is an unstable isotope of Argon. In this emission, there must not be a particle loss or creation, the addition of the mass number and proton number on LHS must be the sane as that on RHS of the equation.
An isotope is ability of an element to exist in two or more forms with the same atomic number but different mass number.
