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
Drupady [299]
3 years ago
7

Which species is classified as a Arrenhius base? 1. CH3OH 2. LiOH 3. PO43- 4. CO32-

Chemistry
1 answer:
Otrada [13]3 years ago
4 0

Answer:

2. LiOH

Explanation:

An Arrhenius base is a substance or chemical compound which increases  the number of OH- ions when added in water.

LiOH or lithium hydroxide is one of the strong Arrhenius base as it ionizes completely or near-completely in solution. When LiOH is added to water , it dissociates into lithium (Li+) and hydroxide (OH−) ions.

Hence, the correct answer is 2. LiOH.

You might be interested in
A sample of glucose contains 1.250x10^21 carbon atoms, how many atoms of hydrogen does it contain?
dybincka [34]

Answer:

Hydrogen = 2.5 * 10^21

Explanation:

Chemical Formula Glucose: C₆H₁₂O₆

One of the ways you could do  this is to notice that for every carbon atom there are two Hydrogen atoms. You can state this more formally by using the formula to set up a ratio: 12/6 = hydrogen to Carbon

So if there are 1.250 * 10^21 Carbon atoms in the Glucose sample, then there will be twice as many hydrogen atoms.

H = 2 * 1.25 * 10^21 = 2.5 * 10^21 atoms

You could do this more formally by setting up a proportion.

6 Carbon / 12 Hydrogen = 1.25*10^21 /  x         Cross Multiply

6*x = 12 * 1.25*10^21                                           Combine the right

6x = 1.5 * 10^22                                                  Divide by 6

x = 2.5 * 10^21

5 0
2 years ago
The thermochemical equation for the reaction of carbon dioxide with sulfur dioxide is shown below. How can the reaction be descr
prisoha [69]

Answer: d. has high activation energy

Activation energy is the energy that a system requires to start a certain process. Also, it <u>is the minimum energy necessary for a given chemical reaction to occur</u>. For a reaction to occur between two molecules, they must collide in the correct orientation and have a minimum amount of energy equal to the activation energy.

As the molecules approach, their electron clouds repel, so energy is required for the collision to occur and therefore the reaction. The activation energy comes from the heat of the system, that is, the translational, vibrational energy, etc. of each molecule. However, if this energy is not enough, the reaction will not be spontaneous.

<u>A reaction between two molecules can be favored by supplying energy to the system.</u> In the case raised in the question, <u>energy equal to 1104 kJ is provided to the system to favor the next reaction </u>

CO2 (g) + 2SO2 (g) → CS2 (g) + 3O2 (g)

<u>Since the energy equal to 1104 kJ is included in the reactants, it can be deduced that it is the energy that is provided to the system for the reaction to occur. </u>However, from the value of this energy it can not be said whether the system is endothermic or exothermic since it is a kinetic variable and the variables of this type do not allow predicting the thermodynamic behavior of a system.

Furthermore, it can be seen that the value of this energy is considerably high, therefore the reaction described has a high activation energy.

3 0
2 years ago
1
Arisa [49]
Light energy into chemical energy
8 0
2 years ago
A.<br> Na3PO4 + _HCI - H3PO, + _NaCl<br> What type of reaction and balance the equation
myrzilka [38]

Answer:

Molar Mass

Explanation:

5 0
2 years ago
Read 2 more answers
A 125g sample of a mixture of salt and sand contains 12% salt.
natka813 [3]
12 % salt is present in 125 g mixture of salt and sand.
Keep in mind that the total percentage is always 100 %
Therefore, if 12 % is the salt, remaining 88 % must be
sand.
a. The amount of mixture is 125 q. Here, 12 % of 125 is
12 * 125 / 100 = 15 g of salt is present in 125 g mixture.
b. The amount of sand can be calculated similarly, 88 %
of 125 g is 88 * 125 / 100 = 110 g of sand is present in
125 g mixture.
4 0
2 years ago
Other questions:
  • Alex saw a rusty old car in an abandoned lot. Because he had recently read about chemical reactions, he began to wonder how the
    14·1 answer
  • Oxygen atomic mass number ??
    12·2 answers
  • How many planets are in the solar system?
    10·2 answers
  • Question 1(Multiple Choice Worth 4 points)
    8·2 answers
  • The element sulfur is classified as a <br> 1.metal<br> 2. metalliod<br> 3.nonmetal<br> 4.noble gas
    11·2 answers
  • True or false: The elements in a group of the periodic table have similar characteristics
    14·1 answer
  • If an element is in period 5 what do we know about the electron configuration?
    6·1 answer
  • Why is the formation of fructose-1,6-bisphosphate a step in which control is likely to be exercised in the glycolytic pathway
    8·1 answer
  • Lussac's Law, the pressure of a gas increases due to an increase in temperature because Group of answer choices the molecules st
    15·1 answer
  • Help mee please (I will give the person who answers this a brainlist)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!