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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 

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Please someone help me and all of the terms do not have to eh used
Reil [10]

Answer:

The correct answer is -

1. D. mold

2. A. Cast

3. F. trace fossil

4. C. original material fossils

5. B. fossil record.

Explanation:

Mold is the impression of an organism in a rock that occurs due to the complete dissolving of the organism and only an impression left in sedimentary rocks.

The cast is a fossil copy of an organism in a rock that takes place when water-containing minerals fill the molds and creates a three-dimension copy of the fossil.

Trace fossils are the fossils that are preserved in such a manner that records of biological activity stored only instead of remains of plants or animals.

Storing originals animals or parts of the remaining such as tissue of an organism in natural form is known as original-material fossils.

Fossil records are the fossils ever found or discovered on the earth.

4 0
3 years ago
Waves are generated when energy passes through causing them to move matter through ____ ?
Anvisha [2.4K]

Answer:

sending heat waves and vibrations

4 0
3 years ago
when a compound containing c h and o is completely combusted in air what reactant besides the hydrocarbon is involved in the rea
Arada [10]

When a compound containing C, H and O is completely combusted in air what reactant besides the hydrocarbon is involved in the reaction is Oxygen.

<h3>What is hydrocarbon?</h3>

A hydrocarbon is an organic molecule composed completely of hydrogen and carbon in organic chemistry. Group 14 hydrides include hydrocarbons. Hydrocarbons are often colourless and hydrophobic, with scents that are weak or exemplified by gasoline and lighter fluid. They exist in a wide range of molecular forms and phases, including gases (like methane and propane), liquids (like hexane and benzene), low melting solids (like paraffin wax and naphthalene), and polymers (such as polyethylene and polystyrene). Hydrocarbon refers to naturally occurring petroleum, natural gas, and coal, as well as their hydrocarbon derivatives and refined forms, in the fossil fuel industry. The primary source of energy on the planet is the combustion of hydrocarbons.

To learn more about hydrocarbons visit:

brainly.com/question/17578846

#SPJ4

7 0
2 years ago
Why water is not used as a thermometric substance​
Digiron [165]

Answer:

Water can be used as the thermometric liquid. It expands and contracts with temperature so it can be used. It's just not a very good choice because: It's thermal expansion is not very large compared to other liquids like mercury.

Explanation:

Hope this help

6 0
3 years ago
Which is the noble gas notation for chlorine?
Mandarinka [93]

Answer: The electronic configuration of Chlorine will be [Ne]3s^23p^5

Explanation: Chlorine is an element which belongs to the P-block of the periodic table. Its atomic number is 17.

Atomic Number = Number of electrons

Number of electrons = 17

The nearest noble gas which lies to Chlorine is Neon which has 10 electrons. Rest of the 7 electrons are filled in the 3s and 3p orbitals. Hence, the electronic configuration of Chlorine is

[Cl]=[Ne]3s^23p^5

8 0
3 years ago
Read 2 more answers
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