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irina [24]
2 years ago
5

2. This is like a mountain but smaller. A. valley B. hill C. plateau D. plain

Chemistry
2 answers:
dimaraw [331]2 years ago
7 0

Answer:

hill

Explanation:

slava [35]2 years ago
6 0

Answer:

B, trust me

Explanation:

^^^

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You can tell if an object is in motion if ___.
neonofarm [45]

Answer:

c

Explanation:

I think that's the answer

3 0
2 years ago
An unknown compound is processed using elemental analysis and found to contain 117.4g of platinum 28.91 carbon and 33.71g nitrog
dlinn [17]

Answer:

1 mole of platinum

Explanation:

To obtain the number of mole(s) of platinum present, we need to determine the empirical formula for the compound.

The empirical formula for the compound can be obtained as follow:

Platinum (Pt) = 117.4 g

Carbon (C) = 28.91 g

Nitrogen (N) = 33.71 g

Divide by their molar mass

Pt = 117.4 / 195 = 0.602

C = 28.91 / 12 = 2.409

N = 33.71 / 14 = 2.408

Divide by the smallest

Pt = 0.602 / 0.602 = 1

C = 2.409 / 0.602 = 4

N = 2.408 / 0.602 = 4

The empirical formula for the compound is PtC₄N₄ => Pt(CN)₄

From the formula of the compound (i.e Pt(CN)₄), we can see clearly that the compound contains 1 mole of platinum.

8 0
3 years ago
What element behaves MOST like magnesium (Mg)?<br> A) S <br> B) Si <br> C) Sn <br> D) Sr
tatyana61 [14]

Strontium (Sr). Elements in the same group of the periodic table have similar characteristics.

3 0
3 years ago
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What are Electrons and how do they move?
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it is the primary electricity in solid. they also make up an atom.

Explanation:

i hope this helps. please make brainiest

8 0
2 years ago
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Which of the following is a chemical property of water? It ___________.
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