Answer:
3.30 gSiO2 / 60.085g SiO2 x 2 mol 0 / 1 mol SiO2 x (6.022*1023 ) = 6.61*1022 O atoms
Explanation:
Answer:
8.90
Explanation:
Density = mass ÷ volume
D = 222.50 g ÷ 25.00
= 8.9
The density of the unknown metal is 8.90.
Hope that helps.
They are classified as Decomposers
Answer:
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Explanation:
Answer:
Which of the following statements about the periodic table is true?
Elements in the same column are similar in their properties.
Elements in the same row are similar in their properties.
Elements that start with the same letter are similar in their properties.
Elements that have the same atomic mass are similar in their properties.
Explanation:Which of the following statements about the periodic table is true?
Elements in the same column are similar in their properties.
Elements in the same row are similar in their properties.
Elements that start with the same letter are similar in their properties.
Elements that have the same atomic mass are similar in their properties.