Over a million students use our free study notes to help them with their homework
Water has a very high specific heat capacity due to the collective forces of the many hydrogen bonds. A lot of energy goes into breaking these bonds rather than raising the temperature of the water, hence...
The hydration of ethene: Ethene and steam are passed over a catalyst - concentrated phosphoric acid (H3PO4) - at 300OC and 60-70 atmospheres. This process is fast, continu...
The Ileum is long (up to 7m!) and has a very high surface area due to the presence of many villi and microvilli. A single villus is made up of many cells, each with lots ...
No, and we may take a counterexample to see why. If y=x^5+5/3x^4, dy/dx=5x^4+20/3x^3, d2y/dx2=20x^3+20x*2=20x^2(x+1). Setting this to 0 will give us the candidates for a POI, but not all these numbers wil...
The period between childhood and adulthood is a time of great transition and turbulence with regards to changing bodies, close relationships, and expectations. It is one of the most rapid phases of develo...
←
1590
1591
1592
1593
1594
→
Internet Safety
Payment Security
Cyber
Essentials