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
Nata [24]
3 years ago
12

The number of electrons in atoms can change when elements combine to form

Chemistry
1 answer:
Nutka1998 [239]3 years ago
8 0
It can change in C. compounds to change when elements combine that will form 
You might be interested in
A gas mixture contains HBr, NO2, and C2H6 at STP.If a tiny hole is made in the container, which gas will effuse fastest?Which ga
MakcuM [25]

Explanation:

Molar mass of HBr = 81 g/mol

Molar mass of nitrogen dioxide gas = 46 g/mol

Molar mass of ethane = 30 g/mol

Graham's Law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows the equation:

\text{Rate of diffusion}\propto \frac{1}{\sqrt{\text{Molar mass of the gas}}}

So, the gas with least molar mass will effuse out fastest from the container and that is ethane gas.

The formula for average kinetic energy is:

K.E=\frac{3}{2}kT

where,

k = Boltzmann’s constant = 1.38\times 10^{-23}J/K

T = temperature = 273.15 K ( at STP)

As we can see from the formula that kinetic energy depends upon only temperature of the gas molecule.

So, from this we can say that all the gas molecules have the same average kinetic energy at this temperature.

5 0
3 years ago
Which of the following measurements are listed in the proper mathematical relationship?(Select all that apply)
Igoryamba

The measurements which are listed in the proper mathematical relationship include:

  • PV=k
  • V/T=k
  • PV/T = k

<h3>What is a Constant?</h3>

This is used in mathematical expressions and has a constant value which doesn't change in expression.

Options A,B and C have the appropriate constants as pressure is usually multiplied by volume.

Read more about Constant here brainly.com/question/15989275

#SPJ1

8 0
1 year ago
If you have 3 moles of a gas at a pressure of 2.5 atm and a volume of 8 liters, what is the temperature?
fomenos

Answer:

d

Explanation:

pv=nrt

2.5×1.01×10^5×8×10^-3=3×8.31×T

T=

3 0
2 years ago
Read 2 more answers
A flexible weather balloon contains helium gas at a volume of 855 L. Initially, the balloon is at sea level, where the temperatu
Alchen [17]

Answer: The change in the volume of the balloon is 144.4L

Explanation: Please see the attachments below

8 0
3 years ago
Butane (c4h10) is liquid fuel used in lighters. how many grams of carbon are in a lighter containing 7.25 mL of butane? The dens
Alisiya [41]
Density = 0.601 g/mL

Volume = 7.25 mL

D = m / V

0.601 = m / 7.25

m = 0.601 x 7.25 => 4.35725 g

hope this helps!
6 0
3 years ago
Other questions:
  • Krispy Kreme Doughnuts decide to donate $10,000 to a classroom for a party how many donuts did they donate in total
    10·1 answer
  • If there are three methyl groups on the same carbon, what is the prefix<br> used?
    9·1 answer
  • Given an activity series in which the most active metals are at the top of the list and the least active metals are at the botto
    12·1 answer
  • What words do scientist use to classify their ideas?​
    7·1 answer
  • What systems are working during the process of respiration?
    13·1 answer
  • Astronomers studying the planet of Rhombus have detected sedimentary rock on its surface. One astronomer wonders if material in
    9·1 answer
  • Based on the weather map, state the direction of the warm front. Using complete sentences predict the effect of the warm front o
    7·2 answers
  • El acido nitrico se obtiene industrialmente por oxidacion de amoniaco (nh3), de acuerdo con la ecuacion: 4nh3 + 702 - h2o + hno2
    15·1 answer
  • 6b<br> Which of the following is a starting compound during<br> cellular respiration?
    14·1 answer
  • Which observation most likely indicates that only a chemical change has taken place
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!