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Andrej [43]
3 years ago
5

Is an apple a pure substance or a mixture?

Chemistry
2 answers:
Gnesinka [82]3 years ago
7 0
An apple is a mixture because a mixture has chemicals such as water, vitamins, sugar, and lots more.
guajiro [1.7K]3 years ago
6 0
An apple would be a mixture. While a mixture is a combination of elements and substances, a pure substance acts as an element itself, therefore, having the properties of only THAT certain element. 


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125) How many known elements are on the periodic table?
guajiro [1.7K]

Answer:

125) 118

126) 6

127) 9

128) Au

Explanation:

5 0
2 years ago
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Ionic and polar compounds usually dissolve in which solvents?
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4 years ago
What is molecular formula of Ozone?​
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3 years ago
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Select the correct statement (2.5 points) (A) Elements in the same row are similar in size. (B) Elements in the same column have
Mrrafil [7]

Answer:

B

Explanation:

We are talking about the periodic table in which elements where put under different rows and columns according to their atomic number (number of protons) in ascendant order.

In rows or periods we can find trends in some properties like atomic radius, electronegativity, etc...). So they are not similar in size. Option A is a false statement.

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3 years ago
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Dafna1 [17]

Answer:

detail is given below.

Explanation:

The charged particles of nucleus are protons while neutrons are neutral having no charge.

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Electron has a negative charge and is written as e⁻. The mass of electron is 9.10938356×10⁻³¹ Kg . While mass of proton and neutron is 1.672623×10⁻²⁷Kg and 1.674929×10⁻²⁷ Kg respectively.

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While the atomic number is 20.

3 0
3 years ago
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