Chemistry, 30.11.2019 10:31, Nyasiabaltimore3

Is insulating ability a chemical property or physical?

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Chemistry, 21.06.2019 23:10, jphan19

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

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Chemistry, 22.06.2019 14:30, Dreynolds1667

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)

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Chemistry, 22.06.2019 16:50, Pookiev

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.

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Chemistry, 22.06.2019 20:00, rafaelasoareschagas7

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.