Chemistry, 06.11.2020 17:10 gwendallinesikes
Nickel-63 has a half-life of 100 years. How much of a 10 gram sample remains after 400 years?
A.
0.3125 grams
B.
2.5 grams
C.
1.25 grams
D.
0.625 grams
Answers: 1
Chemistry, 21.06.2019 14:30
Janel’s class studied properties of matter and how matter can change. janel decided she would do an experiment mixing baking soda and vinegar.question: describe the properties of baking soda and vinegar, and explain the changes that janel should see when she mixes the two types of matter. •first, identify the physical state of matter of baking soda. describe another property of baking soda. •next, identify the physical state of matter of vinegar. describe another property of vinegar. •then, explain what janel should see when she mixes the baking soda and vinegar. •describe the states of matter of the new materials that are formed. •explain how janel can be certain a change has occurred. me
Answers: 3
Chemistry, 22.06.2019 19:00
A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.
Answers: 1
Chemistry, 23.06.2019 03:00
Give a real-world example of an energy transformation that uses two of the following forms of energy: chemical, mechanical, nuclear, gravitational, radiant, electrical, thermal (heat), and/or sound.
Answers: 3
Nickel-63 has a half-life of 100 years. How much of a 10 gram sample remains after 400 years?
A.
Biology, 06.06.2021 22:10
Chemistry, 06.06.2021 22:10
Chemistry, 06.06.2021 22:10
History, 06.06.2021 22:10
Geography, 06.06.2021 22:10
English, 06.06.2021 22:10
Mathematics, 06.06.2021 22:10
Computers and Technology, 06.06.2021 22:10
Mathematics, 06.06.2021 22:10
Chemistry, 06.06.2021 22:10
Health, 06.06.2021 22:10