Questions by Cheersmate

Questions by Cheersmate

The half-life of phosphorus-30 is 2.5 minutes. If you start with 35g oh phosphorus-30, how many grams would remain after 20.0 minutes?

asked Jul 13, 2018

1 answer

3 votes

216k views

The first life forms found on Earth were _____. a bryozoans b bacteria c insects d shellfish

asked Dec 8, 2017

1 answer

0 votes

150k views

In 2000, the U.S. population was 281 million people. In 2008, it was 305 million. What was the rate of population change per year?

asked Oct 3, 2017

1 answer

2 votes

215k views

Langston Hughes was a key figure in which intellectual and artistic movement? A. Beat movement / B. Harlem Renaissance / C. Tin Pan Alley

asked May 14, 2017

2 answers

5 votes

141k views

Which fallacy is this an example of? Julia loves knitting, but her friends think it is not cool to knit. She agrees and says that even she does not like to knit all that much.

asked May 12, 2017

1 answer

5 votes

29.7k views

A. Pat has 10-centimeter length of string she is going to use to measure a small Square table. The length she measures is five strings what are the dimensions of the table? B. What is the area of the table?

asked Nov 2, 2016

1 answer

3 votes

96.5k views

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