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
siniylev [52]
4 years ago
13

3. compounds in which elements are held together by covalent bonds...keeps their own properties

Chemistry
1 answer:
stich3 [128]4 years ago
3 0
The anserr is c that what i think
You might be interested in
A gas occupies 10.2 liters at 0.60 atm. What is the pressure if the volume becomes 3.0 L?
Arturiano [62]
P1V1 = P2V2
P1 = 0.60 atm
V1 = 10.2 L
P2 = ?
V2 = 3.0 L

Solve for P2 —> P2 = P1V1/V2 = (0.60 atm)(10.2 L) / (3.0 L) = 2.04 atm
3 0
3 years ago
I will give brainliest (8th grade)
lesya [120]

Answer:

2.The cooling effects of more indirect sunlight cause autumn and winter. Because of the Earth's approximately 23.5º tilt, the seasons in the Northern and Southern Hemispheres are reversed, about six months apart from each other.

3.In North America, around June 21, Earth tilts on its axis toward the Sun. That means that at the northern summer solstice, North America will experience summer, and winter will start in in the Southern Hemisphere. Winter Solstice. Around December 21, the Northern Hemisphere tilts the farthest away from the Sun.

Explanation:

3 0
3 years ago
How many moles of water, H2O contain 2.0x10^22 molecules of water
Licemer1 [7]
I mole of water has an Avogadro number of molecules.

1 mole = 6.02 * 10^ 23  molecules.

6.02 * 10^ 23  molecules  =  1 mole of water
 
1 molecule                        =  1/(6.02 * 10^23)  mole of water

2.0 * 10^22 molecules would have   =    (2*10^22) * 1/(6.02*10^23)

                                                             = 0.033

2* 10 ^22 molecules of water would have 0.033 moles of water.
5 0
3 years ago
4. When the following equation is balanced, what is the coefficient for HCI?
kozerog [31]

Hey there!

Mg + HCl → MgCl₂ + H₂

Balance Cl.

1 on the left, 2 on the right. Add a coefficient of 2 in front of HCl.

Mg + 2HCl → MgCl₂ + H₂

Balance H.

2 on the left, 2 on the right. Already balanced.

Balance Mg.

1 on the left, 1 on the right. Already balanced.

Our final balanced equation: Mg + 2HCl → MgCl₂ + H₂

Hope this helps!

8 0
3 years ago
What is the density(in g/L) of a gas with a molar mass of 32.49g/mol at 2.569atm and 458K?
garri49 [273]

Answer:

2.22~g/L

Explanation:

According to the ideal gas law equation:

pV = nRT

Let's express the number of moles in terms of mass and molar mass:

pV = \frac{m}{M} RT

Let's divide both sides by volume:

p = \frac{m}{MV} RT

Notice that:

\frac{m}{V} = d

So the equation becomes:

p = \frac{dRT}{M}

Expressing density:

d = \frac{pM}{RT}

Substituting the given values:

d = \frac{2.569~atm\cdot 32.49~g/mol}{0.08206~\frac{L~atm}{mol~K}\cdot 458~K} = 2.22~g/L

7 0
4 years ago
Other questions:
  • The comet cools down and begins to glow brightly as a result of this decreased temperature.
    5·1 answer
  • A gallon of water has a mass of 3.79 kg. how many moles of water (18.02 g/mol) is this?
    5·2 answers
  • How are we made of the same atoms in stars?
    14·1 answer
  • List at least four characteristics of acids
    15·2 answers
  • Describe the relationship between Sun Angle and Sun Length. Explain this change occurs.. ?
    14·1 answer
  • Respond if you got a min to help me with my problem​
    13·2 answers
  • HELP PLEASE Excluding the noble gas group, how does the number of valence electrons in an element influence it chemical reactivi
    10·2 answers
  • What is the mass number of 19/9F?<br> Your answer:<br> A. 9<br> B. 10<br> C. 19<br> D. 28
    7·1 answer
  • What do I do for the drawing, I honestly don't really know anything about this and find it extremely confusing???
    12·2 answers
  • I need help with this problem please
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!