1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Harrizon [31]
3 years ago
12

Help please!!!!!!!!!!!!

Chemistry
1 answer:
kakasveta [241]3 years ago
4 0

Answer:

D

Explanation:

Gases have low densities. Density is the mass of an object divided by its volume. Mass of gases are quite small. Since the mass is related to mass of the particles itself. However the volume is great since the gases are far apart due to how weak the forces of attraction are ( gases take the shape of the container which means they take up a good bit of space which means greater volume). A small mass divided by a large volume gives a small value (small density).

You might be interested in
What is the best explanation for the frequency of eclipses?
Katarina [22]

Answer:A

Explanation:

7 0
3 years ago
Which of the following best accounts for the difference in mutagenic activity between PAHs and PAHs plus liver preparation?
guapka [62]

Answer: C

Explanation:

Some poly nuclear aromatic hydrocarbons are not carcinogenic in themselves. However, when these are made to interact with living cells, enzymes in the cells could convert the polynuclear aromatic hydrocarbon into a carcinogenic material such as benzo-[a]-pyrene. This can now interact adversely with the deoxyribonucleic acid of living cells leading to genetic mutation, that is, irreversible changes in the genes of organisms.

7 0
3 years ago
In this salt water floating egg experiment, how will you use these calculations to find the density of the egg? I’m really confu
Agata [3.3K]

Glass 1 Freshwater  

The egg went directly to the base of the glass. Consequently it has sunk and did not drift  

237.0  

237 (1 glass)  

1.000

Glass 2  

Water with 2 teaspoons of salt  

A similar outcome for glass 2 as container 1 when egg was set into the container it sank to the base.  

248.4  

237  

1.048

Glass 3  

Water with 3 teaspoons of salt  

In reference to glass 1 and 2 the egg sank to the base for a third time.  

254.1  

237  

1.072  

Glass 4  

Water with 4 teaspoons of salt  

The egg remained gliding to where a little bit of the egg was standing out on the top, and when pushed down the egg returned up.  

259.8  

237  

1.096

Hope this helps!

5 0
3 years ago
1. A light bulb is filled with 3.54 g of argon at 25 C and 725 mmHg. What is
Ugo [173]

Answer: The volume of given gas is 2.27 L.

Explanation:

Given: Mass = 3.54 g

Temperature = 25^{o}C = (25 + 273) K = 298 K

Pressure = 725 mm Hg (1 mm Hg = 0.00131579) = 0.95 atm

As moles is the mass of substance divided by its molar mass.

So, moles of argon (molar mass = 40 g/mol) is as follows.

Moles = \frac{mass}{molar mass}\\= \frac{3.54 g}{40 g/mol}\\= 0.0885 mol

Formula used to calculate the volume of given gas is as follows.

PV = nRT

where,

P = pressure

V = volume

n = no. of moles

R = gas constant = 0.0821 L atm/mol K

T = temperature

Substitute the values into above formula as follows.

PV = nRT\\0.95 atm \times V = 0.0885 mol \times 0.0821 L atm/mol K \times 298 K\\V = 2.27 L

Thus, we can conclude that the volume of given gas is 2.27 L.

3 0
3 years ago
Mg + _LINO3 → _Mg(NO3)2 + _Li
-BARSIC- [3]

Answer: both numbers are 2

Explanation:

7 0
3 years ago
Other questions:
  • A liquid sample, with a density of .0915 g/mL has a mass of 17.7 grams.
    13·1 answer
  • Why are pipes bursting in the in extremely cold weather?
    11·1 answer
  • How many moles of MgSiO3 are in 237g of the compound?
    8·1 answer
  • Click on the graph to show the correct relationship between altitude and boiling point
    14·2 answers
  • Why do we slant the graduated cylinder before dropping the metal cylinder into it?
    14·1 answer
  • What is a periodic element that was named after Einstein?
    9·1 answer
  • A point of reference is anything that seems steady that is used compare the position of an object
    9·2 answers
  • Which of the following elements will lose electrons to form an
    5·1 answer
  • Proteins contain<br>a. oxygen<br>b. nitrogen <br>c. hydrogen<br>​
    12·2 answers
  • What happens to PH of basic solution as you add water
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!