Scientists in   discover new products and processes and improve current technology.

Answer;

-Research and development

Scientists in research and development discover new products and processes and improve current technology.

Explanation;

Research scientists are responsible for designing, undertaking and analyzing information from controlled laboratory-based investigations, experiments and trials.

Additionally, research and development is an important means for achieving future growth and maintaining a relevant product in the market. Research may be basic research and applied research applied.  Development is when findings of a research are utilized for the production of specific products including materials, systems and methods.

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

the increase of protons   hope this