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
abruzzese [7]
3 years ago
15

How do we observe in experiments?

Chemistry
1 answer:
anyanavicka [17]3 years ago
6 0

Answer:

by watching and writing down the information that is provided

Explanation:

You might be interested in
Magnesium reacts steadily with hydrochloric acid
balu736 [363]

Magnesium + Hydrocloric acid -> Magnesium chloride + hydrogen

You can observe a single displacement reaction

"Describe to show that the has formed is hydrogen"

I don't know what you mean. I can show the chemical equation though.

Mg(s) + 2 HCl(aq) --> MgCl 2(aq) + H 2(g)

3 0
3 years ago
Name the noble gas atom that has the same electron configuration as each ion in the compound rubidium oxide
Zepler [3.9K]
In rubidium oxide - Rb₂O , the ions are Rb⁺ and O²⁻
Rb is a group one element with one valence electron. To become stable it loses its outer electron to gain a complete outer shell.
Electronic configuration of Rb is - 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 5s¹
Once it loses its valence electron the configuration is;
 - 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 
The noble gas with this configuration is Krypton - Kr

Oxygen electron configuration is 1s² 2s² 2p⁴
Once it gains 2 electrons the configuration is  - 1s² 2s² 3p⁶
The noble gas with this configuration is Neon - Ne
3 0
3 years ago
The Lewis dot model of a molecule is shown. A visual diagram of a PCl3 molecule is shown. Phosphorous is the central atom with a
Nostrana [21]

The answer is B. Each chlorine has three non-bonded pairs and one bonded pair of electrons.

I just took the test and it was correct! 5/5 :)

8 0
3 years ago
Read 2 more answers
(3) How many atoms are there in 6h2o2 A 6 B, 8 C, 12 D, 24​
andrezito [222]

Answer:

6

Explanation:

6H2O2

H2=6×2=12

O2=6×2=12

H2=12×1   =     12

O2=12×16= +192

               =  204  

=204÷34=6 ANS

4 0
1 year ago
Bacteria cells are different from plant and animal cells because they don't have what???!
icang [17]
<span>
Plants and animals are multi-cellular organisms composed of eukaryotic cells, while bacteria are single-cell prokaryotic organisms. Each eukaryotic cell of a plant or animal includes a central nucleus containing DNA and membrane-bound organelles, such as endoplasmic reticulum and mitochondria. A bacterial cell has no nucleus or membrane-bound organelles.

hope it helps! :)

</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • Review Part B Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nit
    5·1 answer
  • How many moles is 15.0 grams iron (II) nitrate?
    6·1 answer
  • The ostwald process is used commercially to produce nitric acid, which is, in turn, used in many modern chemical processes. in t
    13·2 answers
  • Buck's Turf Care Company mowed 233 lawns over a 11 week period. What is the average weekly rate of mowing lawns?
    15·1 answer
  • Within each biome how can the environment be organized into levels from complex to simple
    8·1 answer
  • Write the first and second ionization equations for H2SeO3 please.
    15·1 answer
  • How do you determine the environmental impact of human activities?
    5·1 answer
  • HELP ME PLS!! I FORGOT TO STUDY Which may result from an increase in friction?
    8·2 answers
  • HELP ASAP
    8·1 answer
  • Acid and bases virtual lab
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!