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

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

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

You must show calculations in the space pr receive credit. he line to 1. The following data was obtained by a student heating a mixture of BaCl2•2 H2O and an inert material. Calculate the percent of BaCl2•2 H2O in the sample 24.525 g 26.716 g 26.504 g olod slam Lo Mass of crucible Mass of crucible and mixture Mass of crucible and mixture after heating mby

density of irregular solid mass of irregular solid 8.299 g initial volume 48 mL final volume 55 mL total volume displaced 7 mL what is the density of irregulatr solid?

A student wishes to prepare 2.00 L of 0.100 M KIO3, which has a molecular weight of 214g/mol.  The proper procedure is to weigh out… 42.8 g of KIO3 and add 2.00 kg of H2O 42.8 g of KIO3 and add H2O until the final homogeneous solution has a volume of 2.00 L. 21.4 g of KIO3 and add H2O until the final homogeneous solution has a volume of 2.00 liters 42.8 grams of KIO3 and add 2.00 liters of H2O 21.4 grams fo KIO3 and add 2.00 liters of H2O

5 Water is evaporated from the magnesium chloride solution. The resulting solid is melted at 700°C and decomposed by passing electric current through it. (a) What is the name of the physical change that occurs first in the magnesium chloride? (b) Write the balanced chemical equation for this step. (c) Identify the type of chemical reaction.