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AysviL [449]
3 years ago
11

How you could use the scientific method to learn whether water really does take longer to boil if you are watching it.

Chemistry
1 answer:
Degger [83]3 years ago
6 0

Answer:

What you need is a thermometer and a clock.

Explanation:

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In need of help very soon please.
NemiM [27]

Answer:

hello, i hope this helps.

Explanation:

1 - group

2 - period

3 - periodic table

4 - family

5 - octet rule

6 - valence electrons

6 0
3 years ago
Identify the name for the following compound: Al2O3
Vera_Pavlovna [14]

Answer:

Aluminium oxide (Al2O3)

7 0
3 years ago
The air all around us is a mixture of gasses containing nitrogen, oxygen, carbon dioxide, argon
KiRa [710]

Answer:

Total pressure = 4.57 atm

Explanation:

Given data:

Partial pressure of nitrogen = 1.3 atm

Partial pressure of oxygen = 1824 mmHg

Partial pressure of carbon dioxide = 247 torr

Partial pressure of argon = 0.015 atm

Partial pressure of water vapor = 53.69 kpa

Total pressure = ?

Solution:

First of all we convert the units other into atm.

Partial pressure of oxygen = 1824 mmHg / 760 = 2.4 atm

Partial pressure of carbon dioxide = 247 torr / 760 = 0.325 atm

Partial pressure of water vapor = 53.69 kpa / 101 = 0.53 atm

Total pressure = Partial pressure of N +  Partial pressure of O +  Partial pressure of CO₂ +  Partial pressure of Ar +  Partial pressure of water vapor

Total pressure = 1.3 atm + 2.4 atm + 0.325 atm + 0.015 atm + 0.53 atm

Total pressure = 4.57 atm

4 0
3 years ago
Which of the following are in the human brain?
mezya [45]
The correct answer is D :)
5 0
3 years ago
Read 2 more answers
Frederica is sitting on a moving train. She watches the telephone poles fly past. She knows that the poles in this area are 1/4
kupik [55]
B
1 mile=4 poles
if 5 poles pass by than she´s going around 1.25 miles per min
rounded up = 1.3 mil/min
8 0
3 years ago
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