1) when we put litmus paper in an acid it changed in to a) Blue b) green c) red d) black 2) give an example for week acid a) acetic acid b) hydrochloric acid c) Dsodium hydroxide  d) distilled water 3) what is the second name of alkali a) alkaline b) bases c) acid d) neutral 4) what the use for litmus paper a) . b) - c) _ d) / 5) I can differentiate between hydrochloric acid and acetic acid by litmus paper a) yes b) no 6) example for acidic gases a) oxygen b) hydrogen c) helium d) carbondioxide gas 7) the only basic gases a) ammonia b) nitrogen c) hydrogen d) CO² 8) hydrochloric acid a) HCL² b) HCL c) H²CL d) HC²L 9) Sulphate a) SO³ b) SO c) SO⁴ d) SO² 10) sulphite a) SO³ b) SO c) SO⁴ d) SO²

SCIENCE

인쇄
퍼가기

순위표

비주얼 스타일

옵션

템플릿 전환하기

자동 저장된 게임을 복구할까요?