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
Mademuasel [1]
3 years ago
12

Word equation for k(s)+H2O(l) yield KOH(aq) + H2(g)

Chemistry
2 answers:
KATRIN_1 [288]3 years ago
4 0
Two moles of potassium react with 2 moles of water to form two moles of potassium hydroxide and 1 mole of hydrogen gas.  The number of moles of hydrogen gas produced is half the number of moles of water and potassium that react together.

The molar mass of...

AveGali [126]3 years ago
4 0

<u>Answer:</u> The word equation for the given chemical equation is given below.

<u>Explanation:</u>

Word equation is defined as the equation in which substances are written in word form and not in chemical formulas. The words "and" or "plus" means that one substance and another substance are both reactants or products.

For the given chemical equation:

K(s)+H_2O(l)\rightarrow KOH(aq.)+H_2(g)

The word equation for this follows:

\text{(Potassium)}(s)+\text{Water}(l)\rightarrow \text{(Potassium hydroxide)}(aq.)+\text{Hydrogen gas}(g)

Here, 1 mole of potassium metal reacts with liquid water to produce 1 mole of potassium hydroxide and 1 mole of hydrogen gas.

Hence, the word equation for the given chemical equation is given above.

You might be interested in
Please need this ASAP. Calculate the mass of lime, CaO, that would be produced from 250 tonnes of limestone,
stiv31 [10]

Answer:

1.4×10⁸ g of CaO

Explanation:

We'll begin by converting 250 tonnes to grams (g). This can be obtained as follow:

1 tonne = 1×10⁶ g

Therefore,

250 tonne = 250 × 1×10⁶

250 tonne = 2.5×10⁸ g

Next, the balanced equation for the reaction.

CaCO₃ —> CaO + CO₂

Next, we shall determine the mass of CaCO₃ that decomposed and the mass CaO produced from the balanced equation. This can be obtained as follow:

Molar mass of CaCO₃ = 40 + 12 + (16×3)

= 40 + 12 + 48

= 100 g/mol

Mass of CaCO₃ from the balanced equation = 1 × 100 = 100 g

Molar mass of CaO = 40 + 16

= 56 g/mol

Mass of CaO from the balanced equation = 1 × 56 = 56 g

SUMMARY:

From the balanced equation above,

100 g of CaCO₃ decomposed to produce 56 g of CaO.

Finally, we shall determine the mass of CaO produced by the decomposition of 250 tonnes (i.e 2.5×10⁸ g) of CaCO₃. This can be obtained as follow:

From the balanced equation above,

100 g of CaCO₃ decomposed to produce 56 g of CaO.

Therefore, 2.5×10⁸ g of CaCO₃ will decompose to produce =

(2.5×10⁸ × 56)/100 = 1.4×10⁸ g of CaO.

Thus, 1.4×10⁸ g of CaO will be obtained from 250 tonnes (i.e 2.5×10⁸ g) of CaCO₃.

6 0
3 years ago
Which two factors are most likely to cause a plants guard cell to open its stomata
Elanso [62]

Explanation:

Water Content of Epidermal Cells

Temperature: Increase in the temperature causes stomata to open

4 0
3 years ago
Which pair below describes isotopes of the same element? A) an atom with 6 protons and 8 neutrons - an atom with 8 protons and 6
V125BC [204]

<u>Answer:</u> The atom with 6 protons and 6 neutrons and an atom with 6 protons and 7 neutrons are the isotopes of same element.

<u>Explanation:</u>

Isotopes are defined as the chemical species that belong to the same element but differ in their mass number.

This also means that the chemical species have same number of protons and electrons but different number of neutrons.

Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and neutrons that are present in an atom.

Mass number = Number of protons + Number of neutrons

From the given options:

The elements having same number of protons will be the isotopes of same element.

Hence, the atom with 6 protons and 6 neutrons and an atom with 6 protons and 7 neutrons are the isotopes of same element.

8 0
3 years ago
Which of the following reasons is why spent fuel rods are stored in a pool of water?
lukranit [14]

Answer:

C. water acts as a radiation shield to reduce the radiation level

4 0
3 years ago
How many moles are present in 2. 45 x 1023 molecules of ch4.
nydimaria [60]

Answer:

0.41 moles

Explanation:

8 0
2 years ago
Other questions:
  • What is the mass (in grams) of 9.42 × 1024 molecules of methanol (CH3OH)?
    15·2 answers
  • What would happen to the population of rabbits,if the population of foxes increased?
    13·1 answer
  • According to Le Chatelier's principle, increasing the pressure of the system shown below will shift equilibrium to the left (tow
    15·1 answer
  • A piece of black onyx was cut into a rectangular solid measuring 5.10 cm by 5.10 cm by 2.50 mm . What is the volume in cubic cen
    11·1 answer
  • Which geographic features are associated with a divergent boundary <br> (Can select more then one)
    7·2 answers
  • What was the Kevin temperature of the flubber when it was first discovered?
    12·1 answer
  • The conversion of 1 mole of water at 0°c to 1 mole of ice at 0°c releases 6.01 kj. what must be true about the heat absorbed dur
    13·2 answers
  • Describing the Rock Cycle
    9·2 answers
  • How can you remove salt from oil
    6·2 answers
  • When you take 10 grams of salt, and dissolve it in 25 grams of hot water what is the solubility
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!