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
Goryan [66]
3 years ago
5

How are the helium atoms in a glass model different from real atoms

Chemistry
1 answer:
djyliett [7]3 years ago
5 0
The helium in a glass model is a gas
You might be interested in
Which statement is true for a solution when its concentration of hydroxide ions becomes equal to the concentration of hydronium
bazaltina [42]

Answer:

Option 4th, TRUE . Its pH becomes equal to 7.

Explanation:

[H₃O⁺] = [OH⁻]

pH = pOH → 7

[H₃O⁺] > [OH⁻]  → pH < 7 ⇒ acidic solution

[H₃O⁺] < [OH⁻]  → pH > 7 ⇒ basic solution

pH = 0 does not exist.

7 0
3 years ago
Read 2 more answers
what are some negative impacts on the environment and society when the water cycle is disrupted and drought occurs ?
Alborosie

Some of the negative impact of disruption in water cycle are adverse environment, with affected farming, hydroelectricity, and deforestation.

The water cycle has been operated in the environment for the conversion of water in the different states. The water cycle has been operated with the conversion of water from the water body to the clouds by evaporation.

The evaporated water has resulted in clouds, that have been condensed and precipitated in the form of rain. The water cycle helps in maintaining the water balance in the ecosystem. It made the water available for use as well.

The drought has been the condition of the scarcity of water. In this condition, there has been a disruption of the water cycle. Some of the negative impacts resulting from the disruption of the water cycle are:

  • Adverse environmental conditions
  • Farming affected by water scarcity
  • Unavailability of hydroelectricity
  • Deforestation

For more information about water cycle, refer to the link:

brainly.com/question/1151425

5 0
3 years ago
Read 2 more answers
A 1.00 L volume of HCl reacted completely with 2.00 L of 1.50 M Ca(OH)2 according to the balanced chemical equation below. 2HCl
wolverine [178]

Answer:

\boxed{\text{6.00 mol/L}}

Explanation:

(a) Balanced equation

2HCl + Ca(OH)₂ ⟶ CaCl₂ + 2H₂O  

(b) Moles of Ca(OH)₂

\text{Moles of base} = \text{2.00L} \times \dfrac{\text{1.50 mol}}{\text{1 L}} = \text{3.000 mol base}

(c) Moles of HCl

\text{Moles of HCl} = \text{3.000 mol base} \times \dfrac{ \text{2 mol HCl}}{\text{1 mol base}} = \text{6.000 mol HCl}

(d) Molar concentration of HCl

\text{Molar concentration} = \dfrac{\text{moles of solute}}{\text{litres of solution}}\\\\c = \dfrac{ n }{ V}\\\\c= \dfrac{ \text{6.000 mol}}{ \text{1.000 L}} = \text{6.00 mol/L}

The molar concentration of the HCl was \boxed{\textbf{6.00 mol/L}}

6 0
3 years ago
Read 2 more answers
Which statement best describes how her tissue are responding to he running​
bija089 [108]

Answer:

When Kristen is running and her breathing rate increases, the statement that best describes how her tissues are responding to her running is that they need more oxygen to function, so gas exchange needs to increase.

Explanation:

Options for this question are:

They need more oxygen to function, so gas exchange needs to decrease.

They need more oxygen to function, so gas exchange needs to increase.

They need more carbon dioxide to function, so gas exchange needs to increase.

They need more carbon dioxide to function, so gas exchange needs to decrease.

Physical activity in a person requires an adequate supply of nutrients and oxygen to the tissues, to ensure the production of energy in the form of ATP, obtained from cellular respiration.

A physical exercise implies an increase in the skeletal muscle's ATP demand, so both glucose and oxygen consumption will be higher, which implies an increase in breathing rate to increase lung gas exchange and oxygen bioavailability.

Explanation:

6 0
3 years ago
How to find weight with volume and density ​
stira [4]

Answer:

Explanation:

Look up the density of the material the object is made of in kg/m³.

Measure the volume of the object in m³.

Multiply the density by the volume.

You will then have the mass of the object in kg.

5 0
3 years ago
Other questions:
  • In the lab, you took mass and volume measurements and plugged them into the density formula and calculated densities for differe
    5·1 answer
  • The depletion of ozone (O3) in the stratosphere has been a matter of great concern among scientists in recent years. It is belie
    11·1 answer
  • When 10 grams of salt dissolve in 25 grams of water, what is the resulting mass of the mixture?
    13·1 answer
  • Identify the molar mass of each of the following.
    7·1 answer
  • A summary of observational data is called a/an
    13·1 answer
  • 4. The left brain does all of the following EXCEPT_
    10·1 answer
  • How to open tylenol extra strength bottle?
    9·2 answers
  • Why Ethyl amine is more basic than aniline​?
    10·1 answer
  • What is the charge on an electron?<br> A.–1<br> B.0<br> C.+1<br> D.+2
    14·2 answers
  • What is the water vapor pressure at 120 degrees f.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!