The most appropriate measurement for this block is: 1 2 '3 4 5 6 7 8 9 10 cm a) 3.95 cm b) 4.0 in c) 4.0 cm d) 4.00 cm All of the following properties of a sample of a pure substance can be used for identification except, a) mass b) density c) melting point d) solubility in water

Which part of the description of a compound or element refers to its physical properties and which to its chemical properties? (a) Calcium carbonate is a white solid with a density of 2.71 g/cm3. It reacts readily with an acid to produce gaseous carbon dioxide. (b) Gray, powdered zinc metal reacts with purple iodine to give a white compound

wu.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNslkr/J8P3)H-lQUHIQg6bJxmeSyVpHOEB1plef9xyC5Ca9QldFNDUsAt.. Tp O STATES OF MATTER 三D Calculating volume percent composition 0/5 A chemist prepares a mixture of ethanol and water at a temperature of 23.0 °C. He measures out 38.5 mL of ethanol and mixes it with 38.2 mL. He measures the volume of the solution after it is well mixed and finds that it is 73.6 mL. The density of ethanol is 079 g/mL and the density of water is 1.0 g/mL. Calculate the volume percent of ethanol in this solution. Be sure your answer has the right number of significant digits. db %(v/) 10 Ar Explanation Check 2022 MGraw Hill LLC All Rights Resurved Terms of Use Prvacy Center Accessibility 9:21 FM 378 /2022 DELL Esc F2 FS F6 F7 FB F10 F11 PrtScr Delete PgUp (PgDn F12 Insert Home End 23 $4 & Num Lock Backspace 7 E R Y P. G K Enter 5 *00

a Assume that mitochondria are cylinders 8.00 um in length and 0.800 pm in diameter. What is the volume of a single mitochondrion? The volume of a cylinder is given by the expression: V = n x y2 x h Volume= m

2. Give the answer with correct sig.figs.: 332.57 +24.668 x 2.38 =

What is the difference between a homogeneous and a het-erogeneous mixture?

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9. Which of the following statements does not describe a physical property of chlorine? A) Chlorine combines with sodium to form table salt. B) The color of chlorine gas is green. C) The density of chlorine gas at standard temperature and pressure is 3.17 g/L. D) The freezing point of chlorine is -101°C. is it about a molec

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need help with this chemistry and pls pay attantion to signifucant figures  that is were am having a problem