When kay added 30 g of hydrochloric acid (hcl) to - id3065542736 от loganparrish5370 22.10.2020 13:31

Question

Physics: When kay added 30 g of hydrochloric acid (hcl) to 65 g of zn, bubbles appeared and a white precipitate, zinc chloride (zncl2) was produced. she found that the mass of the zinc chloride was 93 g. since the law of conservation of matter stated that matter can t be created or destroyed, she was puzzled about the difference in mass. what is the best explanation for the missing 2 g?

loganparrish5370 · Accepted Answer

1 g/cm³Explanation:The density of a substance is defined as the ratio of its mass to its volume.At 4 °C, 1 mL water has 1 g mass.1 mL = 1 cm³Thus, ρ = m/Vm = 1 gV = 1 cm³⇒ ρ = m/V = 1 g/ 1 cm³So, the density of water at 4° C is 1 g/cm³...

When kay added 30 g of hydrochloric acid (hcl) to 65 g of zn, bubbles appeared and

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