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
Aleksandr-060686 [28]
3 years ago
14

Write a balanced chemical equation for the reaction that occurs when calcium metal undergoes a combination reaction with O2(g)?

Chemistry
1 answer:
ivann1987 [24]3 years ago
8 0
When calcium joins with calcium its follows the following equation:

2Ca + O2 = 2CaO

hope that helps 

You might be interested in
A geologist finds ripples preserved in ancient sedimentary rock that look just like ripples made by water in mud. He concludes t
MArishka [77]

Answer:

D.  because water and mud behaved in a similar way in the past as they do today

Explanation:

One of the fundamental theories in the field of earth science is the theory of uniformitarianism.

Uniformitarianism was proposed by James Hutton in the 18th century in Scotland. The theory states that "geologic processes occurring today have occurred in times past and that the present is the key to past".

The simple meaning of the theory is that, the processes on earth today such as weathering, erosion, e.t.c have also occurred in times past. Those processes still occur today and an understanding of such events today will help us have a better insight into the past.

Therefore, ripple marks just as they form today from action of mud and water would be formed in a similar way in the past.

6 0
3 years ago
1#
Black_prince [1.1K]

Answer:

1= Magnesium

2 = Option 3 =  1s² 2s² 2p⁶

Explanation:

An electrically neutral atom consist of equal number of protons and electrons.

The answer for 1st q is magnesium because the electronic configuration showed twelve number of electrons. The atomic number of magnesium is twelve that's why this configuration is of Mg.

Mg₁₂ =  1s² 2s² 2p⁶ 3s²

The second answer is option three because has atomic number ten and third electronic configuration have ten electrons.

Ne₁₀ = 1s² 2s² 2p⁶

It is stable electronic configuration. Neon is inert because of this electronic configuration. The outer most shell is completely filled.

8 0
3 years ago
Help me please!! What is the name of the alkyne molecule
juin [17]

Answer:

ans is (2) 2,4- hexadiene

5 0
3 years ago
NEED HELP!PLEAE WITH CHEMISTRY!
andriy [413]

Answer:

ionic

Explanation:

4 0
3 years ago
Read 2 more answers
What are 3 household substances that contain acids and say why are they useful​
Nonamiya [84]

Answer:

battery. you use it for your remotes. vinegar. you use vinegar for cooking of cleaning. nail polish remover. you use this for removing nail polish

6 0
2 years ago
Other questions:
  • Describe the contributions made by Oparin, Haldane, Miller, and Urey toward understanding the origin of organic molecules.
    7·1 answer
  • Consider a large number of hydrogen atoms with electrons randomly distributed in the n = 1, 2, 3, and 4 orbits. How many differe
    7·1 answer
  • What are 1A, 3B, and 7A examples of on the periodic table?
    9·2 answers
  • why is often necessary to follow extensive purification procedures in the isolation of organic compounds?​
    13·1 answer
  • a solid mass of 25 g is mixed with 60 g of a solution. a chemical reaction takes place and a gas is produced. the final mass of
    7·2 answers
  • Which reactant in each of the following pairs is more nucleophilic? Explain.a. -NH2 or NH3b. H20 or CH3CO2-c. BF3 or F-d. (CH3)3
    14·1 answer
  • A mixture containing initially 3.90 mole of NO(g) and 0.88 mole of CO2(g) was allowed to react in a flask of volume 1.00 L at a
    5·1 answer
  • Help , thank you !!
    9·1 answer
  • Can boron bond with lithium
    5·1 answer
  • In the decomposition of water, why is twice as much hydrogen as oxygen formed?(1 point)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!