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
malfutka [58]
2 years ago
14

1) Which of the following statements about gases is false?

Chemistry
1 answer:
MrMuchimi2 years ago
8 0

Answer:

E

Explanation:

Not all gases are colourless and odourless at room temperature. Chlorine gas has a characteristic greenish-yellow colour at room temperature, hydrogen sulfide on the other hand has a characteristic pungent odour at room temperature

You might be interested in
PLEASE HURRY IM TIMED Which of the following are examples of physical changes? (Select all that apply.)
stich3 [128]

Answer:

Explanation:

tearing a piece of paper

crushing a soda can

3 0
3 years ago
Among the groups of elements listed below, which have the same number of electrons in their outermost energy levels? C, K, Ca, R
tatyana61 [14]

Answer:

i believe its d

Explanation:

3 0
3 years ago
Read 2 more answers
Which statement accurately describes dark matter?
Mandarinka [93]

Answer:

C. It does not emit electromagnetic radiation.

Explanation:

Right now, Dark Matter is only a theory. Scientist proposed this to counter some of the strange phenomenon with matter in space.

Scientists know little about dark matter. Some say it's one of the driving forces of the universe. Currently, scientists have no way of measuring or identifying dark matter.

5 0
3 years ago
Read 2 more answers
Chlorine reacts very violently. What about its electron shells makes this the case?
guapka [62]

Answer:

it readily gains another electron. the outer electron shell is closer to the nucleus, than iodine for example, which makes it less shielded (greater attraction for another electron = violent reaction to get it)

Explanation:

5 0
3 years ago
n the reaction Mg (s) + 2HCl (aq) H2 (g) + MgCl2 (aq), how many moles of hydrogen gas will be produced from 75.0 milliliters of
Xelga [282]
0.075 L * 1.0 M = 0.075 mol HCl
H2 is half of HCl by the coefficients divide 0.075 by 2 and get 0.0375 mol H2 gas
8 0
3 years ago
Other questions:
  • Which chemical equation correctly represents the reaction that takes place when nitrogen gas and hydrogen gas are formed as ammo
    6·1 answer
  • What concentration of nh4no3 is required to make [oh− ] = 1.0 × 10−5 in a 0.200-m solution of nh3?
    6·2 answers
  • During vaporization, a substance changes from a liquid to a(n) blank. (fill in the blank)
    8·1 answer
  • In the name carbon dioxide, the prefix of the second word indicates that a molecule of carbon dioxide contains
    10·1 answer
  • The Lewis structure for methane, CH4 is shown. How many valence electrons does each hydrogen atom in the molecule have?​
    9·1 answer
  • 86.64 g LiBr mol LiBr
    8·2 answers
  • A gas with a volume of 20.0l at a pressure of 275 kpa is allowed to expand to a volume of 35.0l. what is the pressure in the con
    10·1 answer
  • 7.23 x 10^24 Al atoms =​
    10·1 answer
  • Which position of Earth would give a
    11·1 answer
  • How many moles are in 2.54 * 10^73 atoms of copper?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!