2006geovannychavez 2006geovannychavez

03-10-2022
Chemistry

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name three obstacles that Mendeleev faced in his life

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The IUPAC name of the compound below is ________.

Fluorine-21 has a half life of approximately 5 s. If there was 100 g to start, how many grams would remain after 20 s?

Iodine-131 has a half life of 8 days. If there was 424 g to start, how many grams would remain at the end of 24 days?

Write the name or formula of these bases: a. LiOH b. Pb(OH)2 c. Manganese (III) hydroxide

The periodic table is arranged by various patterns. Is there a pattern with regard to ioni charge? In three to five sentences, explain your reasoning and provid

A medical institution requests 1 g of Bismuth-214, which has a half life of 20 min. How many grams of bismuth-214 must be prepared if the shipping time is 120 m

The arterial oxygen content, or concentration, in blood is usually expressed in mlO2/100ml of blood. The volume of oxygen is estimated under STPD, that is, stan

is a change in phase a physical changwhich of the followings are indicators that a chemical reaction has probably taken placee or chemical change? a change in c

If 0.339 moles of gas were generated by a reaction and collected in a 500.0-mL evacuated flask, what would the pressure be in that flask at 300°K?

The microwaves in an oven are of a specific frequency that will heat the water molecules contained in food. (This is why most plastics and glass do not become h