A bath bomb is a solid sphere made of a weak base and a weak acid. When it you add it to a bathtub, it mixes with the water to create a soapy solution. If you want it to completely and quickly dissolve a large bath bomb, what might you do?
Lush bath bomb: See how it's made from start to finish
a
Increase the water acidity to a pH of 2, which increases neutralization of the bath bomb - and then take a shower, instead
b
Increase the water temperature, which increases the solubility of the bath bomb - dissolving it more quickly.
c
Decrease the water volume, which increases the solubility of the bath bomb - dissolving it more quickly.
d
Decrease the water temperature, which increases the solubility of the bath bomb - dissolving it more quickly.
b. Increase the water temperature, which increases the solubility of the bath bomb - dissolving it more quickly.
Balance the following the chemical equation:
C2H6 + O2 → CO2 + H2O
Blank 1:
Blank 2:
Blank 3:
Blank 4:
Blank 1: 2 C2H6 + 7 O2 →
Blank 2: 4 CO2 +
Blank 3: 6 H2O
Blank 4:
Looking at the periodic table, determine the number of valence electrons present in Phosphorous (P).
a
4 valence electrons
b
2 valence electrons
c
5 valence electrons
d
3 valence electrons
c. 5 valence electrons
One molecule of Iodine (I2) and two molecules of sodium chloride (NaCl) combine in a reaction. How many atoms are in the products?
a
2
b
3
c
4
d
6
c. 4
In the reaction, one molecule of Iodine (I2) combines with two molecules of sodium chloride (NaCl). The products are two molecules of sodium iodide (NaI) and one molecule of chlorine gas (Cl2).
Each molecule of sodium iodide (NaI) contains two atoms (one sodium atom and one iodine atom), so there are 2 atoms in total for the sodium iodide.
The molecule of chlorine gas (Cl2) contains two chlorine atoms, so there are 2 atoms in total for the chlorine gas.
Adding the total number of atoms in the products, we have:
Number of atoms = total atoms in sodium iodide + total atoms in chlorine gas
Number of atoms = 2 + 2 = 4
Therefore, there are 4 atoms in the products.