Answer:
B
Explanation:
This is because the periodic table is designed this way.
Answer:
acids
Explanation:
HNO3 is a strong acid (Nitric Acid)
CH3COOH is a weak acid (Acetic Acid
Answer:
The equilibrium temperature of the coffee is 72.4 °C
Explanation:
Step 1: Data given
Mass of cream = 15.0 grams
Temperature of the cream = 10.0°C
Mass of the coffee = 150.0 grams
Temperature of the coffee = 78.6 °C
C = respective specific heat of the substances( same as water) = 4.184 J/g°C
Step 2: Calculate the equilibrium temperature
m(cream)*C*(T2-T1) = -m(coffee)*c*(T2-T1)
15.0 g* 4.184 J/g°C *(T2 - 10.0°C) = -150.0g *4.184 J/g°C*(T2-78.6°C)
62.76T2 - 627.6 = -627.6T2 + 49329.36
690.36T2 = 49956.96
T2 = 72.4 °C
The equilibrium temperature of the coffee is 72.4 °C
1 kg = 1000g
2.43 kg *1000g/1kg = 2430 g
If the number of valence electron is one than it will be placed in group IA. elements of group IIA will have two valence electrons and so on....
