Chemistry, 08.07.2019 18:50 kekeke68

Imagine that a chemist is trying to establish whether a piece of rock is from a meteorite that fell from outer space. the rock contains more copper-65 atoms than copper -63 atoms. what can you conclude

Answers: 1

Show answers

Answers

The sample is likely to be from a meteorite.

The reason for this is the fact that the isotope Copper-63 is more abundant on planet Earth than the isotope Copper-65 is. Therefore, if a sample of rock has Cu-65 in a greater quantity, it is likely to be from outer space. Many other elements entered the Earth's crust as a result of meteorite impacts, such as Iron (Fe).

Answer from: Quest

wanahton purified a portion of water with 900 grams of contaminants. each hour, a third of the contaminants was filtered out.

let g(n) be the amount of contaminants (in grams) that remained by the beginning of the nth hour. g is a sequence, what kind of sequence is it, arithmetic or geometric? then, write an explicit formula for the sequence, g(n)=

wanahton purified a portion of water with 900 grams of contaminants. each hour, a third of the contaminants was filtered out.

explanation:

Answer from: Quest

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

Another question on Chemistry

Chemistry, 21.06.2019 20:50

Evaluate this exponential expression,8. (2 + 3)2 – 42

Answers: 3

Answer

Chemistry, 22.06.2019 04:00

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Answers: 1

Answer

Chemistry, 22.06.2019 05:30

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

Answers: 1

Answer

Chemistry, 22.06.2019 15:30

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

Answers: 1

Answer

You know the right answer?

Imagine that a chemist is trying to establish whether a piece of rock is from a meteorite that fell...

Questions