Answer:
27 °C
Explanation:
Applying,
V/T = V'/T'................. Equation 2
Where V = Initial volume of oxygen, T = Initial temperature, V' = Final volume of oxygen, T' = Final temperature.
Make T' the subject of the equation
T' = V'T/V................ Equation 2
Form the question,
Given: V' = 600 mL, V = 460 mL, T = -43°C = (-43+273) = 230K
Substitute these values into equation 2
T' = (600×230)/460
T' = 300 K
T' = (300-273) °C
T' = 27 °C
Density is equal to the weight of the object
Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges. The size of the force varies inversely as the square of the distance between the two charges.
Answer:
a. because it is an element
Explanation:
its pure because it only has one type of atom, making it an element
