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3 years ago

Please Help Me please help me with my attachment

Chemistry

2 answers:

kotykmax [81]3 years ago

7 0

C bc it only has red in it

Anvisha [2.4K]3 years ago

6 0

Answer:

c and d

Explanation:

the others contain red and blue, c and d contain only one color, therefore meaning there's only one type of atom in them :)

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A student observes the chemical process described by this equation:

choli [55]

Answer:

Both are equal

Explanation:

Mass of starting material i.e Aluminium is $4.480 * 10^{-23}$ grams

The weight of oxygen is $2.65 * 10^{-23}$

There are 4 atoms of aluminium and 3 atoms of oxygen

Thus, the total mass of starting material is

$4 *$ mass of one atom of aluminium $+ 6 *$ mass of one atom of oxygen

$4 * 4.480 * 10^{-23} + 6* 2.65 * 10^{-23}$

$35.1 * 10^{-23}$ grams

Mass of new substance is also equal to

$4 *$ mass of one atom of aluminium $+ 6 *$ mass of one atom of oxygen

$4 * 4.480 * 10^{-23} + 6* 2.65 * 10^{-23}$

$35.1 * 10^{-23}$ grams

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3 years ago

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marin [14]

3 major groups are metals,metalloids, and the non-metals.

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Viết cấu hình electron nguyên tử các nguyên tố có số electron từ 1 đến 10

Dmitry [639]

Explanation:

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The elements of these groups are called representative elements.

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saveliy_v [14]

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nikitadnepr [17]

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