Identify the structure that protects and gives support to this plant cell.

A) vacuole

B) cell wall

C) cytoskeleton

What is always true of a weak base

A probe sent to the planet mercury has measured the electronegativities of several elements it has detected on the planet. element 1 2 3 4 5 electronegativity, χ 2.58 1.88 2.10 2.60 3.16 which element would you expect to identify as a metal?

Which is the incorrect association between monomer and polymer? nucleotide - nucleic acid amino acid - polypeptide monosaccharide - polysaccharide nucleic acid - polypeptide?

How many neutron does atom 22Ne isotope have

What atoms form negative ions in binary ionic compounds

How is measuring the volume of liquids different than measuring the volume of regular-shaped solids?

Which of the following best describes the motion of the particles in a piece of steel?

Student follow up The ionic equation for the reaction between zinc and sulfuric acid is. Zn (s) + 2H (aq) - - Zn" (aq) + H2 (g) a State what has been oxidised in this reaction. Explain your answer in terms of electrons.

What kind of group 1 atoms are the most reactive? a. Small atoms c. Atoms with the most electrons in the valence level b. Large atoms d. Atoms at the top of the periodic table

What does it mean when there are 2.3 x 10-4 moles?