Answer:
D
Explanation:
It is letter D because the temperature at which the rock melts directly depends on the density of the rock
Answer: 1.85 atm
Explanation:
Initial pressure P1 = 1.70 atm
Initial temperature T1 = 300.0°C
Convert temperature in Celsius to Kelvin i.e (273 + 300.0°C) = 573K
Final pressure P2 = ?
Final temperature T2 = 350.0°C
(273 + 350.0°C) = 623K
Mathematically, pressure law states the pressure (p) of a gas is directly proportional to the absolute temperature (T).
i.e Pressure ∝ Temperature.
P1/T1 = P2/T2
1.70 atm/573K = P2/623K
P2 = (1.70 ATM x 623K) / 573K
P2 = 1059.1/573
P2 = 1.85 atm
Thus, the 1.85 atm of pressure is required.
Answer:
The mass of the block made of lead = 255.6 grams
Explanation:
<u>Step 1</u>: Data given
Density of lead = 11.36 g/cm³
length of the block = 5 cm, 1.5 cm and 3 cm
<u>Step 2</u>: Calculate the volume of the block
Volume = length 1 * length 2 * length 3
Volume = 5cm * 1.5 cm * 3 cm
Volume = 22.5 cm³
<u>Step 3</u>: Calculate mass
Mass of the lead block = density of lead * volume
Mass of the lead block = 11.36 g/cm³ * 22.5cm³
Mass of the lead block = 255.6 grams
The mass of the block made of lead = 255.6 grams
Answer:
CuSO4 + 2NaOH → Cu(OH)2 + Na2SO4
Explanation: