Chemistry, 30.05.2020 05:58 bermudezs732
From the reaction 2Na+ 2H2O—>2NaOH+H2, how many grams of sodium hydroxide are produced from 3.0 mil of water?
Answers: 1
Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Chemistry, 22.06.2019 16:00
Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy
Answers: 1
Chemistry, 22.06.2019 23:00
Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?
Answers: 3
Chemistry, 23.06.2019 06:20
What is the magnitude of the force of gravity between to 1000 kg cars which are separated by distance of 25. 0 km on an interstate highway? the force between the two cars will be what
Answers: 3
From the reaction 2Na+ 2H2O—>2NaOH+H2, how many grams of sodium hydroxide are produced from 3.0 m...
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