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Chemistry, 22.06.2019 03:00
Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
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Chemistry, 22.06.2019 05:40
Calculate: select the worksheet tab. this tab you calculate the analyte concentration. ο· fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.) ο· record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes. ο· record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed
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Chemistry, 22.06.2019 17:30
What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.
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Chemistry, 22.06.2019 18:00
How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.
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