Select all that apply. which of the following are true about a block of ice at -10°c as you continue to apply heat. its temperature will rise continuously until it completely melts. its temperature will rise until reaching 0°c. its temperature will not rise above -10°c until it melts. its temperature will remain at 0°c until all the ice melts.

The following options are correct

Its temperature will rise until reaching 0°C.

Its temperature will remain at 0°C until all the ice melts.

Explanation:

The melting of ice at temperature below 0°C involves

a) heat is required in increasing the temperature of ice from 10°C to 0°C.

b) heat is required in melting of ice.

So the ice will first undergo an increase in temperature until reaching 0°C.

After that the phase transition will occur where the ice (solid) will get converted to liquid water. Until all the ice melts into water, at 0°C, its temperature will not rise.

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.  

the answers would be

the first one and the second one