Answer:
0.86
Explanation:
1mol of Zn has mass of 65.39g.The amount of Zn is 2.5g65.39g/mol=0.038mol.
The amount of H2 produced is the same as the amount of Zn consumed (0.038mol).
1mol of ideal gas will occupy 22.4L at STP.
The H2 will occupy 0.038mol×22.4L/mol=0.86L
.
Answer:
1. Oxygen Fluoride (O with F): covalent
2. Calcium Chloride (Ca with Cl): ionic
3. Sodium with Sodium (Na with Na): neither
Explanation:
1. Oxygen Fluoride (OF2)
Oxygen with Fluorine is covalent because both of these elements are <em>nonmetals</em>. Bonds that contain only nonmetals are covalent.
2. Calcium Chloride (CaCl2)
Calcium with Chlorine is ionic because there is one <em>metal </em>and one <em>nonmetal. </em>Bonds that contain one metal and one nonmetal are ionic.
3. Sodium with Sodium
Since this is not Sodium bonding with another element, it is neither ionic or covalent.
Answer:
209.4831 g
Explanation:
number of moles × molar mass = mass of substance in g
12.3 × ( 14.0067 + 1.00484 × 3 ) = 209.4831 g
Answer:
hope it's help you ok have a good day
The two ways that energy can be transferred are by doing work and by heat transfer.
