75 mL of 1M HCl was neutralized by 75 mL of 1M NaOH and the temperature rise was 6.3K. The specific heat capacity was assumed to be that of water. (4.18 JK-1g-1)

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?