A scientist has samples of both nitrogen (N2) and hydrogen (H2). Both of these substances are odorless, colorless gases at room temperature. The scientist places the samples into a closed flask and heats the flask. A colorless gas that has a strong odor forms. Which of these best describes what happened?'

Gettysburg address question. what is the best line from the address? why do you think so?

Read the paragraph and answer the question that follows: the town of belmond, iowa, needs to add weather sirens. the loud and steady wail would warn citizens of approaching danger. if past history is an indication, the sirens will save hundreds of lives. with a prediction of a deadly storm season, the alert which sentence should be revised to eliminate redundancy? the town of belmond, iowa, needs to add weather sirens. the loud and steady wail would warn citizens of approaching danger. if past history is an indication, the sirens will save hundreds of lives. with a prediction of a deadly storm season, the alert system is needed immediately.

Me and i you plus a 5 stars and brainlist