Answer & Explanation:
The law of multiple proportion states that two elements A and B can react with each other to form multiple compounds while one of the two elements remain fixed.
For Example
Hydrogen reacts with oxygen to form:
Water (H2O)
Hydrogen peroxide (H2O2)
Answer:Polar covalent bond
Explanation:Polar covalent bonds form between atoms with an electronegativity difference between 0.5 and 1.7.
The answer is D. KOH (potassium hydroxide)
Cells have limitations, if the cell is stronger it targets other cells , when a cell is weak it possibly mean it’s disease.
Answer:
Molecules = 7.5 × 10²³ molecules
Explanation:
<u><em>Given:</em></u>
Moles = 1.25 mol
Avogadro's No. = 
= 6.022 * 10²³
<u><em>Required:</em></u>
Molecules = ?
<u><em>Formula:</em></u>
Molecules = Moles ×
<u><em>Solution:</em></u>
Molecules = 1.25 × 6.022 × 10²³
Molecules = 7.5 × 10²³ molecules
