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viva [34]
2 years ago
6

Which of thes is a property of a substance that is composed of atoms that are held together by ionic bonds?

Chemistry
1 answer:
Svetlanka [38]2 years ago
8 0

Answer: D) It conducts electricity when it is dissolved in water

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How much do 3.01 x 1023 atoms of Helium weigh?
liraira [26]

Answer:

4.0 grams

Explanation:

I hope that helped!!

4 0
2 years ago
Consider the gold isotope 197Au. How many electrons, protons, and neutrons are in a neutral 197Au atom?
tangare [24]

Answer:

The 197Au isotope has 79 protons, 79 electrons and 118 neutrons

Explanation:

Step 1: The isotope = 197Au

Step 2: Calculate neutrons, electrons and protons

197 = Number of protons + number of neutrons

Isotopes always have the same proton number ( is the same as the atomic number). For Gold (Au) is this 79.

The number of electrons is equal to the number of protons in a neutral atom. Since we have 79 protons, there are also 79 electrons.

All isotopes of Au have a different number of neutrons.

The number of neutrons = 197 -79 = 118 neutrons

The 197Au isotope has 79 protons, 79 electrons and 118 neutrons

6 0
3 years ago
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rusak2 [61]
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4 0
3 years ago
When an Alka-Seltzer® tablet is put in water, there is a chemical change because there are bubbles produced. The Alka-Seltzer® t
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3 0
2 years ago
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6 0
3 years ago
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