PLZ HELP, GIVING BRAINLIEST!! Use the pic to help you answer the question
Four claims are made below about what happens when salt is added to water.
Which of the following statements is/are correct when salt is added to water.
A. Statements 2 & 4
B. Statements 2 & 3
C. Statement 4 only
D. Statement 1 only

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Once similarity and one difference between a mixture of elements and a mixture of compounds