Chemistry, 28.08.2020 18:01 ArandomMexican3222
1) Na figura 1 está representada a configuração de uma onda mecânica que se propaga com velocidade de 20 cm. A frequência da onda, em hertz, vale: * 1 ponto Figura 1 Figura 1 a) 5,0 b) 101) Na figura 1 está representada a configuração de uma onda mecânica que se propaga com velocidade de 20 cm. A frequência da onda, em hertz, vale: * 1 ponto Figura 1 Figura 1 a) 5,0 b) 10 c) 20 d) 25 c) 20 d) 25
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Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh
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Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat
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1) Na figura 1 está representada a configuração de uma onda mecânica que se propaga com velocidade d...
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