Top answers

Give the pH of an alkaline solution

pH 8-14 (anything above pH 7 can be seen as alkaline)
JB
Answered by Jodie B. • Chemistry tutor
3249 Views

Name two types of effectors in the body, and the response that effector makes

Muscle - it contracts Gland - it secretes hormones
JB
Answered by Jodie B. • Biology tutor
29245 Views

Let r and s be integers. Then ( 6^(r+s) x 12^(r-s) ) / ( 8^(r) x 9^(r+2s) ) is an integer when: (a) r+s <= 0, (b) s <= 0, (c) r <= 0, (d) r >= s.

First of all, an integer is a whole number, i.e. a not a fractional number, that can be positive, negative or zero. To find the range of values r and s for which the above fraction is an integer we can start...
NP
Answered by Nadia P. • MAT tutor
15972 Views

How can I improve the sophistication of my writing and achieve an A or A*?

One of the most effective ways to improve the sophistication and quality of your writing to reach the higher grades is to utilise embedded quotations. Consider the following example: Without embedded quotati...
EB
5276 Views

How does a capacitor work and how do I treat it in a circuit?

for a capacitor the equations you need to know are: Q=CV V=Vin*e^(t/RC) and E=1/2QV (with Q=charge/columbs, C= capacitance/Farads, V=voltage/volts, R=resitance/ohms, Vin=initial voltage when discharging/volt...
TM
Answered by Tom M. • Physics tutor
3426 Views