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viktelen [127]
2 years ago
13

1.3×10⁵ atoms of He to moles?​

Chemistry
1 answer:
Lera25 [3.4K]2 years ago
3 0

Answer:

65

Explanation:

10 × 5 = 50

510× 1.3 = 65

10 to the power of 5 is 50

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Answer:

Because it contains only two elements.

Explanation:

A binary compound is a compound made up of only two elements. Barium chloride contains:

1. Barium.

2. Chlorine.

Since Barium chloride contains only two elements, it is therefore a binary compound.

6 0
3 years ago
How many kilojoules of heat are released when 32.0 g of NaOH are dissolved in water? (The molar heat of solution of NaOH is –445
Katen [24]
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the mass of NaOH to be dissolved is 32.0 g
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answer is -356.08 kJ
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