Chemistry
Chemistry, 03.02.2020 20:46, C4171

An element's atomic number is 78. how many protons would an atom of this element have?

answer
Answers: 1

Other questions on the subject: Chemistry

image
Chemistry, 22.06.2019 19:00, miguel454545
Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²
Answers: 2
image
Chemistry, 23.06.2019 02:10, sativataurus
Detrimental the length of the object shown 1. 97.8mm 2. 97.80 mm 3. 97mm 4. 98mm
Answers: 2
image
Chemistry, 23.06.2019 03:40, ElegantEmerald
The following questions a24 - a26 relate to 100 ml of 0.0150 m solution of benzoic acid (c6h3cooh). ka(c6h3cooh) = 6.4 x 10^-5. what is the ph of the solution after the addition of 1 x 10^-3 moles of naoh? you may assume no volume change to the solution upon addition of the naoh.
Answers: 2
image
Chemistry, 23.06.2019 10:30, laleona01
Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol
Answers: 2
Do you know the correct answer?
An element's atomic number is 78. how many protons would an atom of this element have?...

Questions in other subjects:

Konu
History, 15.01.2020 07:31
Konu
Mathematics, 15.01.2020 07:31