![subject](/tpl/images/cats/himiya.png)
Chemistry, 11.01.2020 20:31 kirstenb278
Webb has calculated the percent composition of a compound. how can he check his result? by making sure they are in the lowest ratio by adding them to see if they total 100 by checking that they are whole-number multiples by dividing them by the molar mass
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 18:30
How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 20:00
Listenbase your answer to the question on the information below.nuclear radiation is harmful to living cells, particularly to fast-growing cells, such as cancer cells and blood cells. an external beam of the radiation emitted from a radioisotope can be directed on a small area of a person to destroy cancer cells within the body.cobalt-60 is an artificially produced radioisotope that emits gamma rays and beta particles. one hospital keeps a 100.0-gram sample of cobalt-60 in an appropriate, secure storage container for future cancer treatment.which choice represents the correct product for the beta decay of the co-60? fe-60ni-60fe-61ni-61
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 22:10
Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:00
Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.
Answers: 1
You know the right answer?
Webb has calculated the percent composition of a compound. how can he check his result? by making s...
Questions
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 14.02.2020 05:07
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 14.02.2020 05:07
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/istoriya.png)
History, 14.02.2020 05:07
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 14.02.2020 05:08
![question](/tpl/images/cats/User.png)