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Question
Identify each of the following transformations as a chemical or physical changeA) physical
B) chemical
1> water evaporating
2> a button falling off of a shirt
3> silver tarnishing
4> cutting the grass
5> a nail rusting
6> baking a cake
7> placing photographs in a scrapbook
8> formation of green leaves on a plant
9> burning leaves
10> melting ice
Answer
This answer is hidden. It contains 61 characters.
Related questions
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A nuclear equation is balanced when
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Of the elements: B, C, F, Li, and Na. The element with the highest ionization energy is
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The number of valence electrons found in an atom of a Group A element is equal to
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Q:
What is the abbreviated electron configuration for nickel (atomic number 28)?
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B) [Ar]4s23d8
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Q:
What is the electron configuration for potassium (atomic number 19)?
A) 1s22s22p63s23p7
B) 1s22s22p6 3s23p53d2
C) 1s22s22p83s23p5
D) 1s22s22p63s23p64s1
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Q:
The elements sodium, magnesium, and silicon
A) are isotopes of each other.
B) are in the same period of elements.
C) have the same number of neutrons.
D) are in the same group.
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Q:
Which of the following is NOT true for the atoms 13N, 14N, and 15N?
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B) They are isotopes.
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The correct symbol for the isotope of potassium with 22 neutrons is
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Which of the following is a characteristic of the modern periodic table?
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Select the correct symbol for the element.
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Select the correct symbol for the element.
iron
A) Ir
B) Fs
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Q:
Select the correct symbol for the element.
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B) Am
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Q:
As a solid melts, its temperature does not change.