Identify each of the substances in the following chemical reactions as acting as an "acid" or a "base."PH3 + H2S ? PH4+ + HS-
What will be an ideal response?
From left to right: base, acid, acid, base.
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What role can energy conservation play in combating global warming?
What will be an ideal response?
Biological effects of ionizing radiation include
A. damage to molecules in cells. B. mutations. C. damage to DNA. D. All of these are correct.
Sodium sulfite, Na2SO3(aq), is added to wine as an antioxidant since it reacts with the oxygen of the air to form sodium sulfate, Na2SO4(aq). Which of the following is the balanced equation for this reaction?
A) Na2SO3(aq) + O(g) ? Na2SO4(aq) B) Na2SO3(aq) + 2 O(g) ? Na2SO4(aq) C) 2 Na2SO3(aq) + O2(g) ? 2 Na2SO4(aq) D) Na2SO3(aq) + O2(g) ? Na2SO4(aq)
Which of the following segments best illustrates the end of a mid-latitude cyclones occlusion process?
A. B-A B. D-C C. F-E