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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
3003 Views

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

  1. Muscle - it contracts 

  2. Gland - it secretes hormones 

JB
Answered by Jodie B. Biology tutor
28573 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 st...

NP
Answered by Nadia P. MAT tutor
15647 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 em...

EB
5062 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...

TM
Answered by Tom M. Physics tutor
3088 Views

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