Skip to main content

Scientific Methods

A
Anonymous

Dec 22, 2024

Calculate the rms speed of carbon dioxide molecules at STP.A. 12.4 m/sB. 155m/sC. 393 m/sD. 1.55 x 10^5 m/s?

Calculate the root mean square (rms) speed of carbon dioxide (CO2) molecules at standard temperature and pressure (STP). Which of the following options is correct? A. 12.4 m/s B. 155 m/s C. 393 m/s D....
1 answers 29
A
Anonymous

Nov 15, 2024

Calculate the wavelength lambda for gamma rays of frequency f= 6.70×10^21 Hz express answer in metres .?

Calculate the wavelength (lambda) for gamma rays with a frequency of f = 6.70 × 10^21 Hz. Please express the answer in meters. I would appreciate it if you could provide the formula used to calculate...
3 answers 31
A
Anonymous

Oct 21, 2024

Can glass burn and catch fire?

Can glass burn or catch fire? I'm curious about this topic and would like to understand the properties of glass in relation to fire.
10 answers 19
A
Anonymous

Feb 04, 2025

Can one stand on pressurised water?

In a movie, I saw a submarine with a small hole at its bottom, through which the people inside observed the surrounding water and engaged in various activities. This got me thinking: since we cannot s...
2 answers 26
A
Anonymous

Dec 12, 2024

Can one stand on pressurised water?

In a movie, I saw a submarine with a small hole at its bottom, through which the people inside observed the water and engaged in various activities. This got me thinking: since we can’t stand on water...
2 answers 47
A
Anonymous

Nov 13, 2024

Chemistry Homework Problem?

A piece of aluminum foil measuring 1.00 cm on each side and 0.550 mm thick is allowed to react with bromine to form aluminum bromide. a) How many moles of aluminum were used? (The density of aluminum...
1 answers 14
A
Anonymous

Oct 28, 2024

Compared with 31p, the radioactive isotope 32p has a.

Compared to the radioactive isotope (^{31}\text{P}), the isotope (^{32}\text{P}) has: a. a different atomic number b. one more proton c. one more electron d. one more neutron

3 answers 35
A
Anonymous

Dec 29, 2024

Consider the skeletal structure of naphthalein (C10H8), the active ingredient in mothballs. How many double bonds must be added to

Consider the skeletal structure of naphthalein (C10H8), which is the active ingredient in mothballs. How many double bonds need to be added to ensure that each carbon atom attains an octet of electron...
10 answers 12
E
Eriberto Upton

Oct 25, 2024

Converting g/cm3 to lb/ft3?

I have searched extensively online and reviewed my chemistry and physics textbooks, but I still cannot find a clear conversion factor to convert grams per cubic centimeter (g/cm³) to pounds per cubic...
5 answers 68
L
Laney Streich

Jan 17, 2025

Cooking oil and gasoline (a hydrocarbon) are not amphipathic molecules because they do not have a polar or charged region have hydrophobic

Cooking oil and gasoline (which is a hydrocarbon) are not considered amphipathic molecules because they lack both polar and charged regions. Amphipathic molecules typically possess both hydrophobic an...
4 answers 36