Ask a New Question

Charcoal from an ancient campfire

Charcoal from an ancient campfire has a ratio of 14C to 12C that is one- fourth that of new wood. About how old is the charcoal?
1. 3 answers
2. asked by Terrance
3. 2,674 views
1.The remains of an old campﬁre are unearthed and it is found that there is only 80% as much radioactive carbon-14 in the
1. 3 answers
2. asked by hannah
3. 655 views
a piece of charcoal containing 25.0g of carbon is found in some remains of ancient city. The sample shows carbon 14 activity R
1. 0 answers
2. asked by Harrison
3. 695 views
A 25.0 gram piece of charcoal is found in some ruins of an ancient city. The sample shows a 14C activity, R, of 250 decays/min.
1. 0 answers
2. asked by Kristina
3. 1,072 views
Read the sentence.The campfire looked nice in the dark. Which is the best way to revise this sentence using descriptive detail
1. 1 answer
2. 129 views
What other natural resource is mixed with these pigments to make paint?(1 point) Responses oils oils graphite graphite charcoal
1. 1 answer
2. asked by Trust Me I'm A !NERD!
3. 33 views
Use the following information to answer the next question.Consider the following reaction: Charcoal(s) + O2 à CO2 DH = –23.82
1. 3 answers
2. 112 views
While camping, you make a snack over a campfire. You roast a marshmallow over the campfire until it is browned and put in
1. 1 answer
2. 36 views
Charcoal is primarily carbon.Determine the mass of CO_2 produced by burning enough carbon (in the form of charcoal) to produce
1. 1 answer
2. asked by Lynn
3. 1,088 views
Charcoal is primarily carbon. What mass of CO2 is produced if you burn enough carbon (in the form of charcoal) to produce
1. 1 answer
2. asked by Bri
3. 5,151 views