The atomic number of this element is 9 and its mass is 20. how many neutrons does this element have?

What happens to matter during a chemical reaction?

2. what is the formula weight of (nh4) 2so4? 118 amu 116 amu 100 amu 132 amu

What do α helices and β sheets have in common? The same amino acids stabilize both forms of secondary structure. Both are stabilized by glycine and proline residues. The lengths of a 10 amino acid α helix and β sheet strand will be the same.

The formula for magnesium chloride is mgcl2 how many magnesium atoms are there in one molecule

What type of bond is NH3 Ionic, covalent, or metallic

It is thought that organelles of eukaryotic organisms, such as mitochondria and chloroplasts (in plant cells) came from

How does temperature affect molecules

The color of Benedictâs solution is blue. What color does it change to in high sugar concentration?

What functional groups of the emulsifying agent provide the hydrophilic character? Do these groups affect the pH?

Which element has atoms that can form single, double, and triplecovalent bonds with other atoms of the same element? (1) hydrogen (3) fluorine (2) oxygen (4) carbon