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
zubka84 [21]
3 years ago
14

Which correctly describes the reaction between potassium and excess water?

Chemistry
1 answer:
nika2105 [10]3 years ago
7 0
Balanced chemical reaction: 2K(s) + 2H₂O(l) → 2KOH(aq) + H₂(g).

KOH is inorganic compound p<span>otassium hydroxide, a strong base.
H</span>₂ is hydrogen gas.
In balanced chemical reaction number of atoms on both side of chemical reaction must be same. There are two potassium atoms, four hydrogen atoms and two oxygen atoms on both side of reaction.
You might be interested in
Select the name of the period 4 transition element that forms a 3+ diamagnetic ion.
Ymorist [56]
The answer is Scandium
5 0
2 years ago
Read 2 more answers
How do pickles turn to pickles?
RoseWind [281]

1.Slice cucumbers into 1/4 inch slices or spears. Set aside.

2.To make brine, combine water, vinegar, salt, and sugar in medium sauce pan. Bring to a boil and swirl to make sugar and salt dissolve. ...

3.Add cucumbers to jars. ...

4.This recipe made enough for me to one pint and fill two quart jars.

8 0
3 years ago
Read 2 more answers
Identify the type of scientific knowledge represented by each statement. law theory hypothesis If a certain piece of metal is co
Anton [14]
“If a certain metal is cooked, it will conduct electricity better”

- this is a hypothesis, since the statement is kind of vague...”certain metal”...and is written in an “if-then” format.

The amount of electric current that passes through a conductor is directly proportional to the voltage and is described as V = IR

- laws are usually scientific understanding that we’ve tested so much that we’ve come to a conclusion that can often be written out as a mathematical relationship. Hence, the “V = IR”

Electricity is the flow of electric charge in the form of electrons moving through a circuit

- this is a theory. I would give an explanation but I’m out of time.

Hope this helps
8 0
3 years ago
Read 2 more answers
True or false nothing is smaller than atom
Papessa [141]
False. there are quarks, gluons, electrons and nuetrions.
3 0
3 years ago
Which of the following is an example of a chemical change? Dissolving sugar in coffee Evaporating rubbing alcohol Freezing water
Sholpan [36]

Rusting iron is an example of a chemical change because iron reacts with air when moisture is present.

examples of chemical changes are:

• Molecules rearrange with other molecules to make new substance

• Can be production of flames

• Color change

• Bubbling/fizzing

• Temp. change

Examples of physical changes are:

• Melting

• Boiling

• Freezing

• Condensing

• Breaking

• Bending

• Dissolving


3 0
2 years ago
Read 2 more answers
Other questions:
  • Assuming dopant atoms are uniformly distributed in a silicon crystal, how far apart are these atoms when the doping concentratio
    7·1 answer
  • If two objects are made of the same material but have different sizes, will they have the same density?
    13·2 answers
  • How many mL of 50% (v/v) alcohol should be mixed with 10% alcohol to obtain 50mL of 35% (v/v) alcohol? Round to the hundredths p
    13·1 answer
  • In a _______ mixture, the ingredients are distributed evenly throughout the mixture, while in a _______ mixture, the ingredients
    8·2 answers
  • When looking at the effect of temperature on sucrase activity, the ph was set to which number? why was this number chosen?
    9·1 answer
  • Which trait is inherited? (1 point)<br>physical fitness<br>scars <br>hair length<br>freckles​
    7·2 answers
  • How many atoms are in 5Cao4?
    12·1 answer
  • How many liters would you need to make a 1 M solution if you have 6 mol of Sodium Hydroxide
    14·1 answer
  • Fullerenes (like the one shown) are made up of hexagonal rings of carbon atoms (like in graphite or graphene) and alternating pe
    5·1 answer
  • What begins the combustion phase of a four-stroke engine cycle? A B C D​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!