4.According to the Law of Conservation of Matter, what happens to atoms during a chemical reaction?(1 point)
A)Atoms are converted into energy during the chemical reaction.
B)Nothing; they stay the same. **
C)The atoms are rearranged to form new substances.
D)More atoms are produced to form new substances.
5. According to the Law of Conservation of Mass, if 88 g of carbon dioxide (CO2) is produced in a reaction between oxygen (O) and 24 g of carbon (C), what is the mass of dioxygen (O2) in the reactants?(1 point)
A)64g
B)24g
C)32g
D)104g
4 is correct and the second one is 64g
4. The correct answer is C) The atoms are rearranged to form new substances.
5. To determine the mass of dioxygen (O2) in the reactants, we need to use the Law of Conservation of Mass. According to this law, mass is neither created nor destroyed in a chemical reaction. Therefore, the total mass of the reactants will be equal to the total mass of the products.
Given that 88 g of carbon dioxide (CO2) is produced and 24 g of carbon (C) is used, we can calculate the mass of dioxygen (O2) by subtracting the mass of carbon from the total mass of carbon dioxide:
Mass of O2 = Mass of CO2 - Mass of C
Mass of O2 = 88 g - 24 g
Mass of O2 = 64 g
Therefore, the correct answer is A) 64 g.