Janice is voting in a primary but does not announce an affiliation with either party. she is given ballots with each party's list of candidates; she chooses which ballot to use and is restricted to voting for only one party's nominees. in which type of primary is janice participating?

Open primary

Explanation:

From the given case/scenario, we can state that Janice is participating in open primary, i.e. An open primary referred to as a primary election under which an individual voter can either choose not to have affiliation with a political party so as to vote or can tend to declare his/her partnership/relation with a political party at polls, i.e. at time of the primary irrespective of the fact that previously voter was in affiliation with some other political party.

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals