Answer:
The earliest age of technology. It can be defined as the time between 3000 B.C. and 1450 A.D. When humans first started communicating, they would try to use language to make simple pictures – petroglyphs to tell a story, map their terrain, or keep accounts such as how many animals one owned, etc.
<h2>Please mark me as brainliest</h2>
Answer:
1.6666 g/mol = 1 
g/mol
Explanation:
Molar mass of NaOH= 23+16+1 =40g/mol
Mols in 15g = 15/40 mol
If this was dissolved in 225ml of water molarity of the solution is
÷ 225 x 1000 = 1.6666 g/mol = 1 g/mol
Robert E Kahn I hope this helps
<span>The taskbar appears at the bottom of the windows desktop. It is used to launch and manage programs.
</span>The taskbar is part of the GUI (Graphical User Interface) . The most common uses of the taskbar is to<span> to locate and launch programs through the Start button, to view any program that is currently open, check the date an time.</span>
