Top answers

Write a balanced equation for the reaction of calcium hydroxide with nitric acid.

Ca(OH)2 + 2HNO3 --> Ca(NO3)2 + 2H2O
JC
37278 Views

Describe the process of the reflex arc.

The reflex arc is activated to create a rapid response in order to maintain safety. It is an innate, automatic response to a dangerous stimulus. It involves 3 neurones. A sensory neurone, a motor neurone and...
RS
Answered by Ria S. • Biology tutor
15464 Views

Expand (2x-4)(x+3)

We are going to use the F.O.I.L Method for this expansion, FIRST 2x*x = 2x 2 OUTSIDE 2x*3 = 6x INSIDE -4x*x = -4x LAST -4*3 = -12 Now to add up all the terms we have found 2x 2 +6x-4x+12 = 2x 2 +2x+12
KP
Answered by Kate P. • Maths tutor
11788 Views

I don't understand nouns and articles, what is the rule that they follow?

In Spanish, the word before a noun (the article ) needs to match the noun itself. Once you learn the basic rule, it will be easy! Nouns are divided into masculine and feminine - masculine nouns generally end...
JM
Answered by Jake M. • Spanish tutor
3814 Views

Q = P / (R (4-t)), P=36, R= 3, t=-2

Substitute in each letter for the appropriate number that it equals. Q = 36 / (3 x (4--2)) Q = 36 / (3x(4+2)) Q = 36 / (3x6) Q = 36 /18 Q = 2
MR
Answered by Michelle R. • Maths tutor
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