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
Gemiola [76]
4 years ago
11

Helium is an odorless, colorless gas at room temperature. It is less dense than air. That's why helium balloons float. It is a n

on-reactive gas, a member of the Noble gas family. Its melting point is -272.2 oC and its boiling point is -268.93 o A chemical property of Helium is?
Chemistry
1 answer:
Zolol [24]4 years ago
5 0

Answer:

  • Non-flammable
  • It is the only element that doesn't solidify under ordinary pressure and remains a liquid enven at absolute zero.
  • When it electricity runs through helium it glows a pale peach color.
You might be interested in
Perform the following operation and express the answer in scientific notation. 8.20x10^-2x2.50x10^6
lora16 [44]
Answer is 2.05 x 10^{5}
7 0
3 years ago
Using data from Ms.Baltzers students, they found the mass of a piece of brown metal was 14.2 grams, and the volume of that same
Hunter-Best [27]

Answer:

d = 7.9 g/mL

Explanation:

Density:

Density is equal to the mass of substance divided by its volume.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

Symbol:

The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.

Given data:

Mass of brown metal = 14.2 g

Volume = 1.8 mL

Density = ?

Solution:

d = m/v

d = 14.2 g/1.8 mL

d = 7.9 g/mL

5 0
3 years ago
How is the temperature of the Earth's atmosphere linked to the<br> concentration of carbon dioxide?
Anni [7]

Answer:

the amount of carbon dioxide controls the earths temperature

Explanation:

that is why global warming is a problem because the more carbon dioxide produced the hotter earth gets

7 0
4 years ago
Read 2 more answers
According to the rydberg equation, the line with the shortest wavelength in the emission spectrum of atomic hydrogen is predicte
monitta
It is predicted to lie at a wavelength of 91.2 nm.
Rydberg equation is a mathematical formula that is used to predicts the wavelength of light resulting from an electron moving between energy levels of an atom. Rydbery equation is used to describe the spectral wavelengths of chemical elements. The equation is made up of different components, which include n1 and n2. The n1 of the equation has a value of 1 while the n2 runs from 2 to infinity; this makes the spectral lines to converge at point 91.2 nm.
4 0
3 years ago
The Koppen Classification System splits the world into 5 climate zones.
sineoko [7]

Answer:

animal life

temperature

vegetation

Explanation:

I believe this is right

7 0
3 years ago
Read 2 more answers
Other questions:
  • In a sample of liquid water (h2o), which property differs among the water molecules? number of hydrogen and oxygen atoms bond st
    13·2 answers
  • What is the difference between creep and a landslide
    6·1 answer
  • After rigorous statistical analyses have shown a very low likelihood (usually 5% or less) of a result having occurred by chance
    8·2 answers
  • The specific heat of a substance is the energy required to produce a certain change in _____________. A. state B. appearance C.
    10·1 answer
  • 34 atoms of carbon react with 22 molecules of hydrogen gas. How many molecules of methane will be formed &amp; what will be left
    5·2 answers
  • A stone bead and an iron bead are dropped into a cup of water. They both sink to the bottom of the cup. What can be said about t
    15·1 answer
  • Calcium + Sodium Bromide<br> balance
    13·1 answer
  • What happens to the equilibrium between NO2(g) and N2O4(g) in inert argon when the volume is increased and additional argon is a
    6·1 answer
  • True or False <br> Matter is the ability to do work or cause change.
    15·2 answers
  • What is the difference between a purine and a pyrimidine quizlet?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!