A 30.60 g sample of a substance is initially at 25.6 °c. after absorbing 2811 j of heat, the temperature of the substance is 175.0 °c. what is the specific heat (c) of the substance?

As you may remember, NaCl is an ionic compound composed of Na + and Cl - ions. In the oxidation-reduction reaction to form NaCl, which substance is oxidized and which is reduced? A. Sodium is oxidized and chlorine is reduced. B.

What are the independent and dependent variables in each of the experiments?

What feature distinguishes a neutral atom from an ion

The gas phase decomposition of phosphine at 120 °C PH3 (g) 1/4 P4 (g) + 3/2 H2 (g) is first order in PH3 with a rate constant of 1.80*10-2 s-1. If the initial concentration of PH3 is 3.

When barium hydroxide and ammonium chloride react, the temperature of the mixture decreases. What kind of reaction is this?

Fish breathe oxygen, o2, dissolved in the water. since water is a polar substance and oxygen is a nonpolar substance, how can there be any oxygen, o2, in the water?

Barium carbonate, baco3, is stable at ambient temperatures, but decomposes to barium oxide and carbon dioxide at higher temperatures.

How do an isotope and a radioactive isotope differ?

What is a cause of polarity in water molecules?

Which is the force of attraction that holds atoms together? A. gravity B. friction C. physical bond D. chemical bond