Concentration of the reactant,pressure,surface
area of the reactant and temperatur
Answer: The density of the object will be 
Explanation:
Density is defined as the mass contained per unit volume.
Given : Mass of object = 19.6 grams
Volume of object= 
Putting in the values we get:
Thus density of the object will be
Answer: Since this is merely a Physical Change, it is improper to write it as a chemical equation.
Answer:
Unicellular organisms achieve locomotion using cilia and flagella. By creating currents in the surrounding environment, cilia and flagella can move the cell in one direction or another.
Explanation:
I do not know your lines are all messed up is that 2 words after matter or just 1
