The diagrams below represent the four states of matter. which diagram represents the phase that occurs after a solid melts? diagram 1 diagram 2 diagram 3 diagram 4

Answer : The correct option is, diagram 1.

Explanation :

As there are four states of matter which are solid, liquid, gas and plasma.

Solid state : It is defined as the state in which the molecules are arranged in regular and repeating pattern. The molecules are closely packed that means they are arranged in symmetric manner and can not move freely from one place to another.

Liquid state : It is defined as the state in which the molecules are present in random and irregular pattern. The molecules are closely packed but they can move from one place to another.

Gaseous state : It is defined as the state in which the molecules are present in irregular pattern. The molecules are not closely packed and they can move freely from one place to another.

Plasma state : It is defined as the state in which the stars, atoms lose their electrons at high temperature. The combination of the electrons and the nuclei that result is the plasma state of matter.

The phase that occurs after a solid melts is, liquid state.

Thus,

The diagram 1 shows the liquid state.

The diagram 2 shows the gaseous state.

The diagram 3 shows the solid state.

The diagram 4 shows the plasma state.

The diagrams are shown below.

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.