Which of the following is a double displacement reaction? a. PO3 + H2O → H3PO3
b. NaOH + HCI NaCl + H2O
C. CaCO3 = CaO + CO2
d. 2Al + 6HCI 2AICI + 3 H2

The pressure inside a hydrogen-filled container was 2.10 atm at 21 ? c. what would the pressure be if the container was heated to 92 ? c ?

What are the chemical names of these compounds? ke: mg3n2: reset next

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium