subject
Chemistry, 22.08.2019 12:00 alexar6332

What is the total number of protons in the nucleus of an atom of potassium-42?
(1) 15 (3) 39
(2) 19 (4) 42

ansver
Answers: 1
Show answers

Another question on Chemistry

question
Chemistry, 21.06.2019 19:30
The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?
Answers: 1
Answer
question
Chemistry, 21.06.2019 23:00
An electrons position cannot be known precisely only it's probability of being in a certain location can be known
Answers: 1
Answer
question
Chemistry, 22.06.2019 15:30
Light waves travel than sound waves.
Answers: 2
Answer
question
Chemistry, 22.06.2019 18:00
Find the mass, in grams, of 5.00*10^23 molecules of f2
Answers: 3
Answer
You know the right answer?
What is the total number of protons in the nucleus of an atom of potassium-42?
(1) 15 (3) 39<...
Questions
question
Mathematics, 06.10.2019 23:00
Adie-cast plane toy is scaled at inch to 1 foot. if the toy is 6.5 inches wide and 8.5 inches long, determine the dimensions of the actual plane, to t...
question
Mathematics, 06.10.2019 23:00
Locate the foci of ellipse. show your work. x^2/36 +y^2/11 =1...
question
English, 06.10.2019 23:00
Read the sentence. the winter, was long and brutal, seemed to last forever. which word best completes the sentence? whichitselfthosethat...
question
Mathematics, 06.10.2019 23:00
There are 20 students on the school's student council. a special homecoming dance committee will be formed by randomly selecting 6 students from stude...
question
Biology, 06.10.2019 23:00
Ben has two colorless liquids in identical containers. on liquid is water, and the other is sugar solution. ben does not know which is which. he must...
question
History, 06.10.2019 23:00
How can a movie be both a primary and secondary source?...
question
Chemistry, 06.10.2019 23:00
What must be part of a quantitative observation? a change of state a change in size a number a color...
question
Mathematics, 06.10.2019 23:00
When emily was born, she weighed 8.2 pounds. two months later she weighed 10.15 pounds. how much weight did emily gain in two months?...
question
English, 06.10.2019 23:00
Choose the word that best completes the following sentence: ghandi inspired among the people of india....
question
Biology, 06.10.2019 23:00
What is the charge of the nucleus of an atom? why?...
question
Physics, 06.10.2019 23:00
Which botany phenomenon is primarily based on an understanding of physics...
question
Mathematics, 06.10.2019 23:00
The prices per pound of different types of nuts are shown. write an expression that can be used to find the total cost of 2 pounds of peanuts, 3 pound...
question
Mathematics, 06.10.2019 23:00
Multiply (5x2 + x − 4)(x + 2). 5x3 + x2 − 4x − 8 5x3 + 11x2 − 2x − 8 5x3 + 10x2 − 4x − 8 5x3 + 20x2 + 2x − 8...
question
Mathematics, 06.10.2019 23:00
This is really hard.. can someone...
question
Mathematics, 06.10.2019 23:00
What is the sign of the product (−4)(6)(9)(3)? a. positive, because the products (−4)(6) and (9)(3) are negative and the product of two n...
question
Mathematics, 06.10.2019 23:00
Acircular mat has a circumference of 220 centimeters. find the radius rounded to the nearest whole number...
question
English, 06.10.2019 23:00
How is rafi different from his sister andrea in this story? o a he worries more that he might do something embarrassing. o
question
Chemistry, 06.10.2019 23:00
When did pangaea begin to break apart? a. 20 million years ago c. 250 million years ago b. 100 million years ago d. 2 billio...
question
Mathematics, 06.10.2019 23:00
You roll two standard number cubes. what is the probability that the sum is odd, given than one of the number cubes shows a 1? show your work....
question
Chemistry, 06.10.2019 23:00
What is the maximum amount of hcl, in grams, that can be produced if 37.5 g of bcl3 and 60.0 g of h2o are reacted according to the following balanced...
More questions: Chemistry Another questions
Questions on the website: 13722359
See results (0)