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-Dominant- [34]
3 years ago
8

Help me plzz I need help ​

Chemistry
1 answer:
Sladkaya [172]3 years ago
3 0

The is no picture???????

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Why is iron described as an element
Harrizon [31]
Iron is a type of element because iron is metal and metal is also a mineral
Hoped this helped
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3 years ago
GIVING ALOTS OF POINTS !!! Is the following sentence true or false? Where a river flows in a straight
Neko [114]

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6 0
2 years ago
The cube has a mass of 72.9 g.<br><br> What is its density in g/cm3? <br><br> What substance is it?
sashaice [31]
If the cube is 3 cm on each side, then it has a volume of 27 cm^3 (3 x 3 x 3). Density is mass divided by volume, so its density is 72.9/27 = 2.7 g/cm^3. 

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6 0
3 years ago
Calculate the number of moles in 9 g of water​
tangare [24]

Answer:

= 0.5 moles of water

formular \: mass \: of \: water \:  = (2 \times 1)  + 16  = 18 \\ 18g \: of \: water \: are \: weighed \: by \: 1 \: mole. \\ 9g \: will \: be \: weighed \: by \:  \frac{9 \times 1}{18}  \\  =  \frac{9}{18} moles \\  = 0.5 \: moles \: of \: water

7 0
2 years ago
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A period of the periodic table ends with the highest energy level of an element's ators<br> having?"
andrey2020 [161]

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Explanation:

7 0
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