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Dimas [21]
4 years ago
7

Which statement is true about the properties of the majority of the elements in the far left column of the periodic table?

Chemistry
2 answers:
slamgirl [31]4 years ago
8 0
That they r in the same table

Maurinko [17]4 years ago
3 0

They are Highly Reactive.

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What two factors must be held constant for density to be a constant ratio?
Neko [114]

Answer:

Temperature and Pressure

Explanation:

Temperature and pressure cause change in volume.

So any change in volume will alter the ratio of density as given by equation of density.

Density = mass/ volume

Change in volume will alter the ratio.

Kindly mark it branliest if the answer is little bit satisfying.

7 0
3 years ago
You have 357 ml of chlorine trifluoride gas at 699 mmHg and 45 celsius what is the mass of the sample
Maurinko [17]
To find the weight of the gas you need to find the number of moles of using ideal gas formula. Remember to change the temperature unit to Kelvin and the pressure to kpa or atm

PV=nRT
n= PV/RT
n= 699 mmHg* 0.1333kpa * 0.357 L/   8.314 kpa*L  / mol*K  * (45 +273.15)K
n=<span>0.012 moles
</span>
weight= n * molecular weight
weght= 0.012 *92.448 g/mol= 1.109 grams
5 0
3 years ago
Which of the following mixtures is best separated by the use of a separating funnel?
kari74 [83]

Answer:

ethyl ethanoate and water

Explanation:

At the point when one fluid doesn't blend in with another yet glides on top of it, an isolating pipe can be utilized to isolate the two fluids. Oil glides on water. This combination can be isolated utilizing an isolating channel as demonstrated on the following page.  

Ethyl liquor and water are two miscible fluids.   Refining is a cycle that can be utilized to isolate an unadulterated fluid from a combination of fluids. An isolating channel can be utilized to isolate the parts of the combination of immiscible fluids.

The answer is ethyl ethanoate and water. Hope this helps you!

3 0
3 years ago
Explain a polar molecules and give examples​
ivanzaharov [21]
Ethanol is polar because the oxygen atoms attract electrons because of their higher electronegativity than other atoms in the molecule. Thus the -OH group in ethanol has a slight negative charge. Ammonia (NH3) is polar. Sulfur dioxide (SO2) is polar.
8 0
3 years ago
Which neutral atom is isoelectronic with p-3
worty [1.4K]

Answer:

srry...

Explanation:

5 0
3 years ago
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