29) The antimony in a sample of alloy weighing 0.250 g is converted to Sb2O5 and this substance is ignited to Sb2O4. If the Sb2O4, weighs 0.1305 g. what is the percentage of Sb in the alloy?​

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j