Blood that flows to the lungs contains more carbon dioxide than oxygen is called what?

What kind of crystalline solid is graphite? o a. molecular solid b. metallic solid o c. network solid d. ionic solid

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural. question 2 reflects a moral or social value. question 3 refers to something that can be measured. question 4 reflects a question that can’t be observed.

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion