Calculati ce volum ocupa in conditii normale de temperatura si presiune:
a) 64 g O 2 ; b) 48,176 *10 23 molecule N 2
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The rules of engagement (roe) working group is often used to (select all that apply.)

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?