Is putting food coloring in water a chemical change?

Why do most items puffed with nitrogen?

Besides oxygen and hydrogen, which element is most abundant within the human body? iodine (I) boron b. nitrogen (N) carbon c.

C6H12O6 + 6 O2 - -> 6 CO2 + 6 H2O + energy In the reaction listed above, 1 molecule of glucose reacts with 6 molecules of oxygen to form 6 molecules of carbon dioxide, 6 molecules of water, and release energy.

Blood has a ph of 7.35 to 7.45. gastric juice has a ph of about 2.0. the

Aplique ley de la conservacion de la masa en Na2O + (NH4) 2SO4 + H2O + NH3

Which substance is the limiting reactant when 4.0 g of sulfur reacts with 6.0 g of oxygen and 8.0 g of sodium hydroxide according to the following chemical equation: 2 S (s) + 3 O2 (g) + 4 NaOH (aq) → 2 Na2SO4 (aq) + 2 H2O (l) A. O2 (g) B. S (s) C.

If EG = 19 and FG = 12 then EF = ?

Given the following reaction: 4Fe + 302 → 2Fe2O3 How many grams of Fe2O3 will be produced from 24.0 g of Fe and 5.00 g of O2? grams (round to three significant figures)

Which Group 16 element combines with hydrogen to form a compound that has the strongest hydrogen bonding between its molecules? 1. oxygen 2. selenium 3. sulfur 4. tellurium

How many hydrogen atoms are in 2.80 mol of ammonium sulfide?