Identify each statement as a hypothesis, theory, or law. hypothesis theory law For any closed system, the mass of the system must remain constant over time. arrowRight Higher air pressure causes fuel to burn at a faster rate. arrowRight Organisms have changed and diversified over time due to shifting frequencies of heritable traits by means of natural selection. arrowRight
Pl what kind of reaction is this? nahco3 + h2o → co2 + naoh + h2o -composition -decomposition -single replacement -double replacement im leaning more toward single replacement. if im wrong can you explain whyy?