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
Anton [14]
3 years ago
14

Elemental calcium reacts with water at room temperature to form calcium hydroxide and hydrogen gas as shown in this equation. So

dium undergoes a similar reaction with H2O. What would be the coefficient for sodium in a similar reaction?
Chemistry
2 answers:
dem82 [27]3 years ago
8 0
Reaction of Elemental Calcium with Water is as follow,

                        Ca  +  2 H₂O    →    Ca(OH)₂  +  H₂↑

When Sodium Metal is reacted with Water it produces NaOH and eliminates Hydrogen gas as shown in following equation,

                         2 Na  +  2 H₂O    →    2 NaOH  +  H₂↑

In both cases corresponding Hydroxides along with Hydrogen gas is produced.
Iteru [2.4K]3 years ago
4 0

The answer is 2

hope this helps

You might be interested in
When making an observation you should provide a general description of the subject rather than going into too much detail true o
vodka [1.7K]
In an observation in an experiment, you want to write down as much detail as possible. So the answer would be false.
8 0
3 years ago
Which of the following is the best definition of an independent variable
Soloha48 [4]

Answer:

that one

Explanation:

<h2>esssszzzzjijfc</h2>
8 0
3 years ago
Consider the following equilibrium reaction having gaseous reactants and products.4HCl + O2 ⇌ 2H2O + Cl2Which of the following w
Eddi Din [679]

According to what is known about chemical equilibrium and Le Chatelier's principle, when you increase the amount of the reactants, the reaction will be moved to the products, this is because, the most reactants we have the most products we can produce.

From the given choices, the one that goes according to this reason is the third one: The volume of water vapor increases.

6 0
1 year ago
Which college classes would a student most likely take to become an oceanographer? Select 4 choices.
Setler [38]

Answer:

marine biology

coastal ecology

astronomy

meteorology

Explanation:

As a college student, to study oceanography one will have to take classes in the field of marine biology, coastal ecology, astronomy and meteorology.

An oceanographer is someone or a professional that studies the ocean in order have more scientific knowledge about them.

Oceanography is a merger of geology, biology, chemistry, physics as it pertains to the ocean.

  • There is no need to study human anatomy to study oceanography.
  • Marine biology and coastal ecology deals with study of life forms in their marine environment.
  • Astronomy and meteorology helps to gain insight about the formation of the ocean and how weather relates to the ocean.
5 0
3 years ago
Sulfur undergoes combustion to yield sulfur trioxide by the following reaction equation:
12345 [234]

Answer:

Therefore, the amount of heat produced by the reaction of 42.8 g S = <u>(-5.2965 × 10²) kJ = (-5.2965 × 10⁵) J</u>

Explanation:

Given reaction: 2S + 3O₂ → 2 SO₃

Given: The enthalpy of reaction: ΔH = - 792 kJ

Given mass of S: w₂ = 42.8 g, Molar mass of S: m = 32 g/mol

In the given reaction, the number of moles of S reacting: n = 2

As, Number of moles: n = \frac{mass\: (w_{1})}{molar\: mass\: (m)}

∴  mass of S in 2 moles of S: w_{1} = n \times m = 2\: mol \times 32\: g/mol = 64\: g

<em>Given reaction</em>: 2S + 3O₂ → 2 SO₃

<em>In this reaction, the limiting reagent is S</em>

⇒ 2 moles S produces (- 792 kJ) heat.

or, 64 g of S produces (- 792 kJ) heat.

∴ 42.8 g of S produces (x) amount of heat

⇒ <u><em>The amount of heat produced by 42.8 g S:</em></u>

x = \frac{(- 792\: kJ) \times 42.8\: g}{64\: g} = (-529.65)\: kJ

\Rightarrow x = (-5.2965 \times 10^{2})\: kJ = (-5.2965 \times 10^{5})\: J

(\because 1 kJ = 10^{3} J)

<u>Therefore, the amount of heat produced by the reaction of 42.8 g S = (-5.2965 × 10²) kJ = (-5.2965 × 10⁵) J</u>

8 0
3 years ago
Other questions:
  • Which types of electromagnetic waves have longer wavelengths than the waves that make up visible light?
    9·1 answer
  • What do the arrows indicate ? A)plate movement. B)ocean flow. C)mid ocean ridge. D)continental drift.
    12·2 answers
  • Give a reason why laboratory apparatus are made of ceramics​
    6·1 answer
  • Match each set of quantum numbers to the correct subshell description by typing in the correct number.
    5·2 answers
  • When 47.2 J of heat is added to 13.4 g of a liquid, its
    10·1 answer
  • 2 Equation on chemistry that I have been struggling with, needed some assistance
    8·1 answer
  • Silicon is lustrous and is a conductor of heat and electricity. Which class of elements could this element belong to?
    12·1 answer
  • Write the equilibrium constant: Pb3(PO4)2(s) = 3Pb2+ (aq) +<br> 2PO2 (aq)
    14·1 answer
  • What other elements does iron commonly bonds with.
    10·1 answer
  • Multiple choice:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!