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
astra-53 [7]
3 years ago
11

Calcium is added to water,the liberated gas is​

Chemistry
2 answers:
vlabodo [156]3 years ago
4 0

Answer:

In both cases, the gas evolved is H2. When calcium reacts with water the heat evolved is not suffcient for hydrogen to catch fire. On the other hand, sodium metal reacts with water violently and in this case a lot of heat is evolved which is sufficient for hydrogen to catch fire.

Explanation:

may this answer is helpful for you

olchik [2.2K]3 years ago
3 0

Hydrogen

The reaction is given by

\boxed{\sf {Ca\atop Calcium}+{H_2O\atop Water}\longrightarrow {Ca(OH)_2\atop Calcium\:Hydroxide}+{H_2\atop Hydrogen}}

Balanced equation:-

\boxed{\sf {Ca\atop Calcium}+{2H_2O\atop Water}\longrightarrow {Ca(OH)_2\atop Calcium\:Hydroxide}+{H_2\atop Hydrogen}}

You might be interested in
How does your Skeletal and Muscular Systems work together?
elena-s [515]

Answer:

Answer would be A, Muscles move your bones

Explanation:

Without the Muscular System, your bones would not be connected properly

3 0
3 years ago
Read 2 more answers
Which statement best describes the pH of pure water?
Ray Of Light [21]

The pH of pure water is neutral because the concentration of hydronium ions equals that of hydroxide ions.

Answer: Option A

<u>Explanation:</u>

Water is one of the most important constituents of living being. It is said that there is no life without water. So that water need to neutral in nature to save life. Pure water is composed of hydronium H^{+} and hydroxide \left(O H^{-}\right) ions. It is known that hydronium ions are acidic in nature with concentration of 1 \times 10^{-7} \mathrm{M} / \mathrm{L}.

Similarly, the hydroxide ions which are basic in nature will be in same concentration as that of hydronium ions. So, as the concentration of basic and acidic elements are equal with the same strength of pH, the combination of these ions lead to formation of pure water with the pH being neutral.

7 0
3 years ago
Read 2 more answers
Please help me it's just one question!
sashaice [31]

Answer:

hope this help

Explanation:

brainliest pls

6 0
3 years ago
What type of bond would form between two atoms of selenium? A. Double ionic bond B. Single ionic bond C. Single covalent bond D.
kirill115 [55]

The corret answer is D

3 0
3 years ago
Need help with this chem question thanks
IRISSAK [1]

Answer:

The answer to your question is letter A.

Explanation:

Isomers are molecules that have the same molecular formula but have a different structure. The molecule from which are looking an isomer has 5 carbons and 1 double bond. Then we need to look for another molecule with these components.

A.- This molecule has 5 carbons and 1 double bond, This structure is an isomer of the first one.

B.- This molecule has 3 carbons and 1 double bond, it's not an isomer of the first structure.

C. This molecule has 4 carbons and 1 triple bonds, it's not an isomer of the first structure.

D. This molecule has 5 carbons but it doesn't have any double bond, then it's not an isomer of the first structure.

5 0
3 years ago
Other questions:
  • The ________ is the energy difference between reactants and products in a chemical reaction. heat of reaction transition energy
    10·1 answer
  • A 100 W light bulb is placed in a cylinder equipped with a moveable piston. The light bulb is turned on for 2.0×10−2 hour, and t
    8·1 answer
  • Anthracite is so hard and pure it is also referred to as a _____.
    10·1 answer
  • How many grams of sodium acetate ( molar mass = 83.06 g/mol ) must be added to 1.00 Liter of a 0.200 M acetic acid solution to m
    15·1 answer
  • How old is the idea that matter is composed of atoms?
    8·1 answer
  • Using the IUPAC nomenclature rules and the periodic table choose the correct name for the following ionic compounds Al2O3
    5·2 answers
  • Pls i need help with this
    7·1 answer
  • Question 52 points)<br> The electromagnetic waves with the highest frequency are ______ waves
    11·1 answer
  • STEP 5: LEAD
    12·2 answers
  • There are many ways of generating electrical energy. Research three of the following, describe how they work, and discuss the pr
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!