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
Answers: 1
Chemistry, 21.06.2019 18:30
Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?
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Chemistry, 21.06.2019 19:30
Water molecules have a strong attraction to each other because of hydrogen bonding, allowing water to move against gravity up a plant's stem through capillary action. true false
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Chemistry, 21.06.2019 23:50
How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.
Answers: 1
Chemistry, 22.06.2019 01:30
100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.
Answers: 1
1) Na figura 1 está representada a configuração de uma onda mecânica que se propaga com velocidade d...
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