Top answers

State and explain the general trend in first ionisation energy across Period 3

As you go across period 3 there is a general increase in the trend of the first ionisation energy. This is because the atoms have a greater charge on the nucleus (this means they have more protons). However,...
HB
Answered by Helen B. • Chemistry tutor
9138 Views

Here are some fractions: 3/10, 2/8, 4/12, 12/40, 5/20. Which of these fractions are equivalent to 1/4?

Before we begin lets quickly do some reviewing. What are fractions and how can we write them? Fractions are often used when we don't want to write down numbers that are really long. A fraction , simply put i...
ML
Answered by Michael L. • Maths tutor
9095 Views

¿Qué haces en tu tiempo libre?

Hago mucho en mi tiempo libre porque me gustar estar ocupada. Normalmente estudio en la bibioteca, pero a veces salgo con mis amigos. Solemos ir al cine para ver la última película o vamos a un restaurante y...
EJ
Answered by Elizabeth J. • Spanish tutor
7526 Views

Draw [Cu(H2O)6]2+ and explain why is it blue in colour.

[Cu(H2O)6]2+ is and octahedral shaped complex which I shall draw on the whiteboard. It is blue for thw following reasons: When the water ligands bond to the Cu2+ ion, it causes the d orbitals to split into 2...
AJ
Answered by Amaya J. • Chemistry tutor
63812 Views

How do you know when do use the subjunctive?

The subjunctive mood in Spanish is used to talk about desires, wishes, doubts and possibilities. In other words, it's used to talk about things that are not completely certain. It is also used when two claus...
RG
Answered by Royona G. • Spanish tutor
2405 Views