Iron reacts with oxygen to produce iron oxide (rust). this reaction is represented in an equation as 4fe + xo2 → 2fe2o3. identify the value of x that will balance the equation.
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Whic disease reduces bone density and causes the bones to become brittle

Ineed 3 people to answer this. interviewee name: age: gender: job: date and time of interview: what are some major health concerns that you have? are there ways that you know you can prevent these health concerns (or other concerns like obesity)? if you need to find out more about a specific health issue, what do you do? be specific. (don’t let them say “look on the internet”, because we have already learned that not everything on the internet is reliable! they should tell you a specific site if they use the internet as a source.) what do you think is the biggest health concern facing our country? what are some things that you do to monitor your health? how do you monitor your food and water intake now? how would you get the word out about this lifestyle change? how do you think the media influences what concerns we have for our health? do you have experience working in corporate wellness? what are your strengths?

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides. b) replication of their genomes does not involve proofreading. c) rna viruses can incorporate a variety of nonstandard bases. d) rna viruses are more sensitive to mutagens.