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Seu BOTIJÃO tá na VALIDADE? Antes de trocar seu botijão de gás, confira essas dicas da Ultragaz para instalar tudo com o máximo de segurança. Antes de comprar, tem que verificar se o botijão está na validade e lacrado. Depois, confere se a vávula e a mangueira têm o selo do Inmetro e também estão dentro da data de validade. Por último, a dica de colocar sabão para verificar vazamento está valendo. #Ultragaz #Somandoenergias #VamosEnergizar #UltragazNoManual #Publicidade
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VEJA o ALGODÃO CAMALEÃO: ele muda de COR Essa é uma das 85 experiências do Laboratório do Manual do Mundo. O truque é colocar um reagente sobre o algodão que muda de cor quando adiciona uma substância ácida. Depois, outra reação neutraliza o ácido e ele volta a ficar branco. #manualdomundo #quimica #laboratorio
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