Questions by Alejandro Mezcua

Questions by Alejandro Mezcua

How long will it take for 475 mg of a sample of radium-225, which has a half-life of about 15 days, to decay to 30 mg

asked Jun 14, 2023

1 answer

13 votes

307k views

A man is heterozygous ( Cc ) for a recessive trait that causes a fatal illness , the mother does not carry the recessive allele ( CC ) . What is the percentage chance of their children being a carrier

asked Feb 5, 2023

2 answers

28 votes

416k views

NA What role aid south African woman play against the violation of rights from the 1950s to 1960s

asked Jan 2, 2023

1 answer

25 votes

528k views

What is the basic unit of structure and function in all living things?

asked Dec 23, 2022

2 answers

22 votes

127k views

Which of the following are characteristics of civilizations? Select the three correct answers, O large cities social classes tribal societies O lack of government O art and architecture temporary settlements

asked Jul 12, 2022

1 answer

32 votes

316k views

A gas occupies 10.2 L at 0.986 atm. What is the pressure if the volume increases to 16.0 L?

asked May 15, 2022

1 answer

35 votes

93.9k views

What is the mass of modelling clay?

asked Jan 4, 2022

2 answers

34 votes

288k views

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