Top answers

All subjects
IB

Explain one economic push factor relating to voluntary migration

Individuals living an area lacking of employment opportunities may cause people to migrate looking for better work opportunities. If changing locations could drastically improve wages and work conditions,...

DR
Answered by Daniel R. Geography tutor
2083 Views

2HCl (aq)+CaCO3 (s)->H20(l)+CaCl2(aq)+CO2(g). If using 40cm^3 of 2.5mol.dm^-3 Hcl and 5.67g of CaCO3, determine the limiting reagent and how much CO2(g) could be theoretically produced by this reaction.

First, we have to convert the starting measurements for the HCl and CaCO3 content into moles so we can compare the ratios to the formula. 40cm^3=0.04dm^30.04dm^32.5mol.dm^-3=0.1 moles of HClmass/molar...

DR
Answered by Daniel R. Chemistry tutor
2578 Views

What techniques were employed in the 'Calvin Experiment' to elucidate the carboxylation of RuBP (IB-HL 8.3)?

Calvin carried out ‘feeding experiments’ where radioactive labelled carbon was fed to plants. 14CO2 is taken up the cells and is then fixed into photosynthesis. 14CO2...

AK
Answered by Adam K. Biology tutor
3232 Views

Explain how skeletal muscle contracts.

Muscle fibers are comprised of elongated myofibrils. A myofibril is made of repeating chains of sarcomeres which have no nucleus but have myosin and actin filaments which are able to slide past each other...

DR
Answered by Daniel R. Biology tutor
2041 Views

How can I approach the analysis of a passage of text?

When approaching the analysis of any piece of literature, it helps to divide up the task by searching for certain literary devices. I find one technique that helps me is to use different coloured highligh...

TQ
Answered by Thibault Q. English tutor
2065 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning