If a catalyst is used in a reaction:a. the energy of activation increases.
b. the reaction rate does not change.
c. the reaction rate increases.
d. the equilibrium shifts.
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Related Questions
Compared to the mass and the penetrating power of an alpha particle, a beta particle has?1) Less mass and greater penetrating power 2) less mass and less penetrating power 3) more mass and greater penetrating power 4)more mass and less penetrating power
As you move down group one of the periodic table, what happens to the atomic radii?
If there is no net force on an object, then the object will a) continue to accelerate B) begin moving slow down c) maintain it's rate of speed d) have to be at rest
By the way...... what do those symbols for the elements have in common (for number 7-11): Pb, Au, Cu, Hg, Na ? *
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Answer:
A
Explanation:
acids have weak bonds between hydrogen atoms and (usually) oxygen, which results in its ability to donate the protone
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The product of an alphadecay of 222/86 Rn is 218/84 Po (option B).
What is an alpha decay?
Alphadecay is a type of radioactive disintegration in which some unstable atomic nuclei dissipate excess energy by spontaneously ejecting an alpha particle.
An alphaparticle is a positively charged nucleus of a helium-4 atom emitted as a result of radioactivity. It has a formula of 4/2 He.
This suggests that when a 222/86 Rn undergoes alphadecay, the product will have mass and atomic number as follows:
- Mass no.: 222 - 4 = 218
- Atomic no.: 86 - 2 = 84
The element with atomic number 84 is Polonium (Po).
Therefore, option B is correct.
Learn more about alpha decay: brainly.com/question/35140893
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Electricity
Industry
Transportation
Commercial and Residential
Agriculture
producers need more money to make and distribute goods.
companies raise prices to pass on costs to consumers.
the government prints more money and pushes prices up.
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Hyperinflation can occur when the government prints more money and pushes prices up. Hence option d is correct.
What is hyperinflation?
Hyperinflation is defined as based on a price growth threshold of, by one definition, 50% each month, and, by another, 1000% per year. If hyperinflation continues, people start to store perishable goods like milk and bread. The economy crumbles as these requirements become scarcer and more expensive. People lose savings as cash loses value.
Hyperinflation is caused by a country's money supply growing quickly, frequently as a result of a government creating more and more currency. As more cash is made available, the value of each unit decreases, driving up costs. Money loses value when prices rise too much because it has less purchasing power due to inflation.
Thus, hyperinflation can occur when the government prints more money and pushes prices up. Hence option d is correct.
To learn more about hyperinflation, refer to the link below:
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Hyperinflation can occur when the government prints more money and pushes prices up.
If there are excessive and uncontrolled price increases in any economy, such economy will face situation called Hyperinflation.
in other words, any economy where the prices of goods and services have risen more than 50 percent a month over a certain period of time will experience hyperinflation.
Further Explanation
Hyperinflation can occur if there is excess money in circulation. It commonly occurs when an economy is facing serious depression
Depression can be described as a period of a prolonged contracting economy. Any country facing a period of prolonged contracting economy will experience a negative growth rate.A good example of a negative growth rate is Recession.
Depression can last for many years and always result in the following:
- High unemployment rate
- Less lending
- A decrease in productive output
- Company liquidating
- Personal bankruptcies
Effects of hyperinflation
Hyperinflation will result in the devaluation of a country currency in the foreign exchange market and this will make the people minimize the holdings of the local currency and switching to more stable foreign currencies.
However, hyperinflation at some point occurred in some countries' economies.
Some of these countries include
- Argentina
- Hungary
- Germany
- Russia
- China
LEARN MORE:
- Hyperinflation can occur when? brainly.com/question/1297747
- A country experiences hyperinflation when brainly.com/question/10443287
KEYWORDS:
- hyperinflation
- economy
- currency
- foreign
- exchange
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Answer:
Selling price of watch A and watch B= Rs. 425
Let cost price of watch A=x
Profit =10%
∴
100
110
x=425
x=386.36
Let cost price of watch B=y
Loss =10%
∴
100
90
y=425
y=472.22
Net cost price =x+y=858.5858
Net selling price =850
Loss%=
858.58
858.5858−850
×100=1%
Explanation:
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(2) AgNO3(aq) + KCl(aq) =>AgCl(s) + KNO3(aq)
(3) HCl(aq) + NaOH(aq) =>NaCl(aq) + H2O(l)
(4) H3O+(aq) + OH-(aq) => 2H=O(l)
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Answer : The correct reaction is, (1)
Explanation :
(1)
In this reaction, the oxidation state of calcium (Ca) changes from (0) to (+2) and the oxidation state of oxygen (O) changes from (0) to (-2). In this reaction the electrons are transferred from one reactant (calcium) to another reactant (oxygen). This is a synthesis reaction.
(2)
In this reaction, there is no changes in the oxidation state of the elements. So, in this reaction, no electrons transferred from one reactant to another reactant. This is a double-displacement reaction.
(3)
In this reaction, there is no changes in the oxidation state of the elements. So, in this reaction, no electrons transferred from one reactant to another reactant. This is a neutralization reaction.
(4)
In this reaction, there is no changes in the oxidation state of the elements. So, in this reaction, no electrons transferred from one reactant to another reactant. This is a combination reaction.
Hence, the correct reaction is, (1) in which the electrons transferred from one reactant to another reactant.