Consider the chemical equations shown here. P4(s) 3O2(g) → P4O6(s) ΔH1 = -1,640. 1 kJ P4O10(s) → P4(s) 5O2(g) ΔH2 = 2,940. 1 kJ What is the overall enthalpy of reaction for the equation shown below? Round the answer to the nearest whole number. P4O6(s) 2O2(g) Right arrow. P4O10(s).

Kuhl found that babys brains are most open to learning the consonants in their native language at what age? and vowels at what age?

Which of the following always exist between two objects having mass ● elastic force ● contact force ●gravitational force ●magnetic force

Which statements are true for invasive species? 1. they always stabilize an ecosystem. 2. they’re always successful in adjusting to a new habitat. 3. they often compete with the native species for resources. 4. they have the ability to displace the native species. 5. they’re always pests.