Chemistry, 17.12.2020 18:20 shelbs6632
1. Mr. Tanner had heartburn, which is an indicator of too much acid in the stomach,
that moves up into the throat. He took some Milk of Magnesia, an antacid which
helps to make the acid less acidic and burn less in the throat. The chemical
reaction combines to produce water (H,0) and magnesium (Mg). The balanced
chemical equation identifies the reactants, the products, and the masses for each
one. (S8P18)
Mg(OH)2 + 2H - 2H2O + Mg
58 g + 29 → ? + 24 g
Which mass of water (H20) is produced in this reaction?
20 g
A.
16 g
B.
C. 329
D. 36 g
Answers: 2
Chemistry, 21.06.2019 17:00
Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects
Answers: 2
Chemistry, 21.06.2019 22:30
What are the charges of the subatomic particles by choosing the answer from the drop down menu. protons have a (+1,0,or-1). (protons,neutrons,electrons) have a 0 charge. 3.) electrons have a (+1,0,-1)
Answers: 2
Chemistry, 22.06.2019 12:40
When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign
Answers: 2
Chemistry, 22.06.2019 14:00
Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules
Answers: 1
1. Mr. Tanner had heartburn, which is an indicator of too much acid in the stomach,
that moves up i...
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