If xenon has an atomic number of 54 and a mass number of 108, how many neutrons does it have?

54

27

100

108

What would be the best microscope to view living single-celled organisms in a sample of pond water?

Joanna had a small ventricle septal defect (vsd) repaired when she was 3 years old and has no residual cardiac problems. she is now 28 and is requesting prophylactic antibiotics for an upcoming dental visit.

Where is oxygen first used in the transition from anaerobic to aerobic metabolism?

Why should you never touch a baseball plant?

Carbon is transferred from seawater to atmosphere through the process of diffusion excretion photosynthesis respiration

The doctor said "The child is you, simply the best of you." What does this mean?

2. What is an investigation? What is a demonstration? How are the different?

In animals, embryonic stem cells differ from adult stem cells in that

Which are the two primary limiting nutrients for plant growth?

Sorry but i was asking for one of the credit card to pay for ca