<u>Answer:</u> The molar mass of metal (M) is 47.86 g/mol
<u>Explanation:</u>
Let the atomic mass of metal (M) be x
Atomic mass of
To calculate the mass of metal, we use the equation:
Mass percent of metal = 59.93 %
Mass of metal = x g/mol
Mass of metal oxide = (x + 32) g/mol
Putting values in above equation, we get:
Hence, the molar mass of metal (M) is 47.86 g/mol
A high thickness of a liquid
Answer:
61.105 C
Explanation:
Charge: This can be defined as the product of current flowing through a circuit and time. The S.I unit of charge is coulomb's (C)
I = Q/t ................. Equation 1
Where I = current, Q = Charge, t = time.
Note: The current through a cross sectional area of the compressor is the amount of charge passing through the area per unit time.
Q = It ............... Equation 2
Given: I = 121 A, t = 0.505 A.
Substitute into equation 2
Q = 121(0.505)
Q = 61.105 C.
Hence the charge passing through the cross sectional area of the circuit = 61.105 C
Answer:
1. A substance that can be separated into two or more substances only by a chemical change is a(n) _____.
solution
element
mixture
compound
2.
Which of the following materials is a substance?
air
gasoline
stainless steel
silver
3.
The first figure in a properly written chemical symbol always is _____.
boldfaced
capitalized
italicized
underlined
4.
Which of the following represents a compound?
H
H-3
H2O
O-16
5. What do chemical symbols and formulas represent, respectively?
elements and compounds
atoms and mixtures
compounds and mixtures
elements and ions
Explanation: