Chemistry, 12.03.2021 19:20 natalieperalta88
What is the mass of an element with 3 protons and 4 neutrons? Also, how many neutrons are in the nucleus of an atom that has an atomic mass of 36 and atomic number of 25?
Answers: 1
Chemistry, 22.06.2019 07:00
Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils
Answers: 1
Chemistry, 22.06.2019 19:30
What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2
Answers: 3
Chemistry, 22.06.2019 20:00
Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
What is the mass of an element with 3 protons and 4 neutrons? Also, how many neutrons are in the nuc...
Mathematics, 27.06.2021 09:30
Mathematics, 27.06.2021 09:30
Mathematics, 27.06.2021 09:30
Mathematics, 27.06.2021 09:30
Mathematics, 27.06.2021 09:30
Chemistry, 27.06.2021 09:30
Mathematics, 27.06.2021 09:30
Mathematics, 27.06.2021 09:40
Mathematics, 27.06.2021 09:40
Mathematics, 27.06.2021 09:40