Potassium (K) reacts with oxygen gas (O,) to form potassium oxide (K,O). Which equation for this reaction is correctly balanced? K+ O2 K,O 2K + O2 K20 4K + O2 2K,0 4K+202 2K,0 B 26 27 28 29 30 31 33 34 35 Save/Exit

What is the thermodynamic product of this reaction? HBr Br O Br Br O Br Br Br

1. Cu(NO3)2(aq)+2NaOH(aq) to Cu(OH)2(s)+2NaNO3(aq) 2. Cu(OH)2(s) to CuO(s)+H20(l) is this a single replacement double combination  decomposition  combustion

Which equation shows a decomposition reaction? A B C D O Search CH +0 4(g) 2(g) CaO () Mg(s) PbCO 4 +02(8) + CO2(g) → → CO Beno = CO 2(8) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 FEE → CaCO Mg0(s) 2 + H₂O(1) PbO (s) + CO2(g) 3(s) My UPMC o ர் -12788578- (up) for billing VAS Service Fee (0) VAS Service Fee Credits El all Que UPG Freight code- Stock charge WC 3 or 4 For will call Fema-Bran PW-Brandy! SID# 660 15

Write balanced reaction equations,including symbols describing the physical state of the chemicals,for the following reactions

Predict the products and balance the following reactions, including phase symbols.   a. Complete combustion of liquid pentane (C5H12) in the presence of oxygen gas. b. H2 (g) + F2 (g) --> c. Sodium metal is placed in water. d. K (s) + Cl2 (g) -->