587addisabeba 587addisabeba

23-12-2022
Chemistry

contestada

Boron consists of two naturally occurring isotopes, 10B which has a mass of 10.012 a.m.u and 11B which has a mass of 11.009 a.m.u. The atomic weight of boron is 10.81 a.m.u. Calculate the percentage composition of each isotope.

Respuesta :

Otras preguntas

A card is drawn at random from a standard pack of playing cards. Then a fair coin is flipped. What is the probability of selecting a 9 and the coin landing on h

Mr. Smith was doing repairs to a section of the wall of his house. He uses a ladder that is 6 feet tall to get to a section that needs fixing. If the foot of th

The style or appearance of text is called

The leader of the Russian revolution was

What is the length of the hypotenuse of triangle STU?

Mrs. Jackson gave sum of money to her son and daughter in the ratio 8:9 her daughter received $3,060. How much did Mrs.Jackson give to her two children in all

I need help please and thank you

Lines MN and GH are parallel. If mT is 135°, then what is mX?

After the Battle of ________, France began to openly help the American cause.

which of these is an effect of an algal bloom? A. The mercury contained in fish build up in animals that eat the fish B. An increased growth in microorganisms r