Q3. Use Hess' Law and the results from questions 1 and 2 to find the enthalpy of hydration (AHreaction) for anhydrous sodium acetate in kJ. Show your work clearly - rewrite transformed reaction steps from questions 1 and 2 above. NaC2H3O2(s) + 3 H20(1) → NaC;H3O2 3H2O(s)

A chemist working as a safety inspector find an unmarked bottle in a lab cabinet.

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2-86 When each of the following measurements are length is convert to inches, using a conversion factor obtained from the equality 1 foot = figures should the answer have?, 12 inches, how many significant

Discuss the language demands included in the lesson on mixing substances in a 5th-grade classroom by Identifying key vocabulary terms students must know in order to master the learning objectives for the lesson based on the below standard and learning objective. Standard Conduct an investigation to determine whether the mixing of two or more substances results in new substances. Learning Objective Given a variety of substances and safety equipment in a classroom setting, students will be able to conduct an experiment to mix two or more substances and observe the results. They will be able to correctly identify whether a new substance has been formed as a result of the mixing, based on observable changes such as color change, formation of a precipitate, or change in temperature, with at least 80% accuracy.

I need help with the blank tables on the page as well as the question on the bottom

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» Significant Figure Rules 01 >> 02 >> 03 >> 04 >> 05 >> All nonzero digits are significant. Zeros that appear between other nonzero digits are always significant. Zeros that appear in front of all of the nonzero digits are called left-end zeros. Left-end zeros are never significant. Zeros that appear after all nonzero digits are called right-end zeros. Right-end zeros in a number that locks a decimal point are not significant. ▬▬▬ 美銀銀時 ☐☐ Right-end zeros in a number with a decimal point are significant. This is true whether the zeros occur before or ofter the decimal point. 237 has three significant figures. 1.897 has four significant figures. 39,004 has five significant figures. 5.02 has three significant figures. 0.008 has one significant figure. 0.000416 has three significant figures. 140 has two significant figures. 75,210 has four significant figures. 620.0 has four significant figures. 19.000 has five significant figures. For multiplication and division problems, the answer…

Question 2, B, C, D, And E

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