A chemical test for the presence of dissolved vitamin C is that the vitamin C bleaches a dark blue solution of indophenol. A student place 1 ml of indophenol n each of six different test tubes. Then the student added a different liquid drop by drop to cach test tube until the blue color of the indophenol disappeared. As indicated in the following table each liquid to a different number of drops to bleach out the blue color of the indophenol. Liquid & Drops required
Lemon Juice 5 drops
Fresh Orange juice 20 drops
Cooked orange juice 30 drops
Pineapple juice 30 drops
Apple juice 45 drops
Water 100 drops did not bleach t.

Which liquid had the 2nd lowest concentration of vitamin C? Explain your reasoning​

Heat flow inside earth activity i chose chemistry cause there is no science alert! the newspaper has been hacked, and all of the headlines have been changed to reflect old legends. it is your task to make sure they are corrected. choose one of the newspaper headlines. you will rewrite the headline and a one-to-two-paragraph article to make the news scientifically correct. be sure to include the following in your corrected newspaper article: new title reflecting correct information detailed information about the processes and tectonic plate interactions that are causing the geological event to occur real-world example of where to find the geological event on earth (picture and location) also review the grading rubric before you begin.

Oxidation-reduction reactions (often called "redox" for short) are reactions that involve the transfer of electrons from one species to another. oxidation states, or oxidation numbers, allow chemists to keep track of these electron transfers. in general, one element will lose electrons (oxidation), with the result that it will increase in oxidation number, and another element will gain electrons (reduction), thereby decreasing in oxidation number. the species that is oxidized is called the reducing agent or reductant. the species that is reduced is called the oxidizing agent or oxidant. to sum up: oxidation = increase in oxidation state = loss of electrons = reducing agent reduction = decrease in oxidation state = gain of electrons = oxidizing agent part a which element is oxidized in this reaction? fe2o3+3co→2fe+3co2 enter the elemental symbol. view available hint(s) is oxidized part b which element is reduced in this reaction? 2hcl+2kmno4+3h2c2o4→6co2+2mno2+2kcl+4h2o enter the elemental symbol. view available hint(s) is reduced

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?