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Vilka [71]
3 years ago
7

Which of the structure below represents fat

Chemistry
1 answer:
love history [14]3 years ago
4 0
What are the option for the questions???
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Calculate the distance that a man walked if it took him 42 seconds to walk at a speed of 3m/s.
Hitman42 [59]

Answer:

126 m

Explanation:

Distance=time*speed➡42*3=126m.

7 0
3 years ago
55. Which Element has a larger radius- Rb or I?
Luden [163]

Rb has larger radius.

5 0
3 years ago
How do you know if the reaction is exothermic
MArishka [77]
Hey there!
Exothermic reactions release heat, causing its temperature to fall. If the reaction is lessening the temperature of the object while releasing all the heat, then you know that the reaction is indeed exothermic. Hope this helps!
5 0
3 years ago
How many atoms of hydrogen are present in 2.92 g of water?
Wittaler [7]
The molecular weight of water is <span>18.01528 g/mol.
So in 2.92 grams there are 2.92/</span>18.01528 = 0.1621 mol of particles.

1 mol contains 6,02214 × 10^<span>23 particles by definition.

So the nr of H2O molecules is </span>0.1621 * 6,02214 × 10^23 = 0,9761 × 10^23.

Every molecule has 2 H atoms, so you have to double that.

2* 0,9761 × 10^23 = 1.952 × 10^23.
3 0
3 years ago
Read 2 more answers
The charge on a magnesium ion is +2. When it formed an ionic compound with another element, it lost 2... what?
Naya [18.7K]

Answer:  electrons

Explanation:  Electrons have a charge of -1 each.  If two left, the remaining atom would have a positive +2 change.

6 0
3 years ago
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