subject

Chemistry, 21.10.2020 18:01 deedy289

An unknown element, X, is isolated and examined. It is determined that 74% of the sample is composed of the isotope 256x while the other 26% of the sample is composed of 248%. Based
on this information, what is the atomic mass of element X?

ansver

Answers: 2

Show answers

Another question on Chemistry

question

Chemistry, 21.06.2019 21:30

Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10^-3 m and k for the dissociation is 1.86x10^-5. ch3cooh(aq)+h2o(> h3o^+(aq)+ch3coo^-(aq)

Answers: 2

question

Chemistry, 22.06.2019 04:30

What are the primary responsibilities of a chemical engineer involved in "r& d"? develop large scale manufacturing operations discover new products and processes training of new chemists determine products needed by consumers

Answers: 2

question

Chemistry, 22.06.2019 08:20

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5

Answers: 3

question

Chemistry, 22.06.2019 12:30

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Answers: 3

You know the right answer?

An unknown element, X, is isolated and examined. It is determined that 74% of the sample is compose...

Questions

question

English, 16.04.2021 17:10

What is a developmental screening that is mandated by federal law in the IDEA which requires states to find and identify children who may need early i...

question

Mathematics, 16.04.2021 17:10

Clasifica el número decimal que representa cada fracción en exacto, periódico puro y mixto. 8/25 AYUDA PORFAVOR...

question

Mathematics, 16.04.2021 17:10

A circle is centered on point B. Points A, C and D lie on its circumference. If ZADC measures 62°, what does ZABC measure?...

question

History, 16.04.2021 17:10

Answer question above ...

question

Mathematics, 16.04.2021 17:10

Please help the Spanish thing says if the triple of a number 1abcde is abcde1. find a + b + c + d + e

question

Mathematics, 16.04.2021 17:10

the school group is raising money for their trip. The group needs $450+325. They have six weeks to sell $1 candy bar, How much do they need to sell th...

question

Mathematics, 16.04.2021 17:10

The amount of money in a bank account increased by 18.5% over the last year. If the amount of money at the beginning of the year is represented by n,...

question

Mathematics, 16.04.2021 17:10

What is the range of the given function. {x | x = -5,1,4,6}...

question

Mathematics, 16.04.2021 17:10

The sum of two-thirds of z, one-half of w, and 6...

question

History, 16.04.2021 17:10

Which branch of government collects taxes? Which branch makes a state of the Union Address each year ?...

question

Mathematics, 16.04.2021 17:10

Best answer gets brainliest y=0 1. y=(x³+12x²+47x+60) 2. y=(12x²- 25x + 12)...

question

Social Studies, 16.04.2021 17:10

Help? Me please? Civics ...

question

Biology, 16.04.2021 17:10

Why do scientists follow a set order of steps when carrying out a scientific investigation?...

question

English, 16.04.2021 17:10

The complete predicate of the following sentence is , and the simple predicate is . She will bake cookies....

question

Mathematics, 16.04.2021 17:10

sup everyone! i was gonna do a giveaway a little bit ago... but i was -97 points Have a wonderful friday!!...

question

Mathematics, 16.04.2021 17:10

The sum of the lengths of is 25.82 cm. The length of is 5 cm and the length of is 14.7 cm. What is the length of and what kind of triangle is this? A...

question

Mathematics, 16.04.2021 17:10

SOMEONE PLEASE HELP ME ...

question

Mathematics, 16.04.2021 17:10

Please help! Having trouble with this ...

question

Mathematics, 16.04.2021 17:10

Really need help Five less than twice what negative number squared is 157?...

question

English, 16.04.2021 17:10

Find the grammar mistake -“Here’s all my anime prfp”

More questions: Chemistry Another questions

Questions on the website: 13722360