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mrs_skeptik [129]
3 years ago
13

An unknown liquid has a mass of 30.6 g

Chemistry
1 answer:
Rzqust [24]3 years ago
5 0
Density= 0.585 or 0.59
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An atom of gold has a mass of 3.271 X 10-22 g. How many atoms of gold are in 5.00 g of gold? (Give your answer in scientific not
Kobotan [32]

Answer:

1.53 × 10²² atoms Ag

Explanation:

Step 1: Define conversions

3.271 × 10⁻²² g = 1 atom

Step 2: Use Dimensional Analysis

5.00 \hspace{3} g \hspace{3} Ag(\frac{1 \hspace{3} atom \hspace{3} Ag}{3.271(10)^{-22} \hspace{3} g \hspace{3} Ag} ) = 1.52858 × 10²² atoms Ag

Step 3: Simplify

We have 3 sig figs.

1.52858 × 10²² atoms Ag ≈ 1.53 × 10²² atoms Ag

5 0
2 years ago
15
damaskus [11]
Mostly in my opinion I think it’s the secound one
8 0
3 years ago
A property is a characteristic of a substance that can be observed and does not change the identity of the substance. T/F
Murljashka [212]
The correct answer is false. The statement given does not describe a property in general. However, it speaks of a specific type of property which is the physical property.  This property is the one that does not change the identity of a substance. A property can also be a chemical property where the identity of a substance is changed.
4 0
3 years ago
What are the 10 element​
maw [93]
  • hydrogen
  • oxygen
  • carbon
  • nitrogen
  • fluorine
  • silicone
  • boron
  • argon
  • cobalt
  • aluminum

hope it hepls✨

4 0
2 years ago
2Fe + 3C02<br> 3CO + Fe2O3<br> AH = -24.7 kJ<br> Is the reaction exothermic or endothermic?
Softa [21]

Answer:

the answer should be B xD<<<<<<<<<<<:::::::::::>>>>>>>>::::::::::::<<<<<<:::::>>>>>::::: makes this brainlist for good luck for the rest of ur life dont risk it

Explanation:

7 0
2 years ago
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