larissa

Solve the equation: _ ___ ãx +2=ã5-x +3

solve: the square root of (x) +2= the square root of (5-x) +3

what is the answer a number n times 9 decreased by 11?

What is the distance between the points (-30, -10) and (-30, 19) in the xy-plane? A. 29 units B. 9 units C. 20 units D. 49 units

Between which types of elements do ionic bonds occur, and how do electrons act within the bond?(1 point) Responses metals and nonmetals, electrons transferred metals and nonmetals, electrons transferred metals and metals, electrons freely moving metals an...

i just took exam. the answer is b.

Which elements on the periodic table are the least reactive? (1 point) Responses the group with helium at the top the group with helium at the top the group with carbon at the top the group with carbon at the top the group with fluorine at the top the gro...

How are reactivity and electronegativity related?(1 point) Responses An element will be more reactive if it has a very high or very low electronegativity. An element will be more reactive if it has a very high or very low electronegativity. An element wil...

Which element listed would have the greatest electronegativity? (1 point) Responses boron boron carbon carbon fluorine fluorine lithium

Which elements would react most easily with each other? (1 point) Responses an element with a high electronegativity and an element with low reactivity an element with a high electronegativity and an element with low reactivity an element with a high elec...

Metallic bonds are responsible for many properties of metals, such as conductivity. Why is this possible?(1 point) Responses An attraction between a positive charge and a negative charge is created. An attraction between a positive charge and a negative c...

Which kind of bond would occur between sodium (Na, Group IA) and chlorine (Cl, Group VIIA)?(1 point) Responses covalent covalent no bond no bond ionic ionic metallic

Why is carbon said to provide a “backbone” in many molecules?(1 point) Responses Carbon atoms can form chains and branches with each other, and other atoms can attach to these. Carbon atoms can form chains and branches with each other, and other atoms can...

Which option describes the structure of the electron shells in a neutral carbon atom?(1 point) Responses The inner shell is incomplete with three electrons. The outer shell is incomplete with three electrons. The inner shell is incomplete with three elect...