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Chemistry, 22.06.2019 10:00
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
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Chemistry, 22.06.2019 14:30
What state of matter is ice a. liquid b. element c. solid d. gas
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Chemistry, 23.06.2019 04:10
An unknown substance has been shown to have weak covalent bonds. which of the following is most likely a property of this substance? a. high ph b. high conductivity c. low melting point d. low flammability
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Chemistry, 23.06.2019 04:31
What are the coefficients that will balance the skeleton equation below? n2 + h2 → nh3
Answers: 1
The atomic weight of the hydrogen is 1.008. Find the percent of H1^1 and H1^2 isotopes present in it...
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