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3 years ago

In general, the rate of a reaction can be increased by

Chemistry

1 answer:

stiv31 [10]3 years ago

7 0

Answer: 1. All of these

Explanation:

The rate of a reaction depends on following factors:

1. increasing the concentration of reactants: means there is more particles of reactants per unit volume.Thus more particles can collide and hence the rate of reaction increases.

2. increasing the temperature- the particles move faster and undergo more collision which leads to an increase in the rate of the reaction.

3.adding an appropriate catalyst: addition of catalyst lowers the activation energy and thus more reactants can cross the energy barrier. Thus it leads to formation of more products hence an increase in the reaction rate.

Thus the rate of a reaction can be increased by all of these.

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2055 Q. No. 10^-2

insens350 [35]

Answer:

Explanation:

Moles of KOH = $10^{-2}$

Volume of water = 10 liters

Concentration of KOH is given by

$[KOH]=\dfrac{10^{-2}}{10}\\\Rightarrow [KOH]=10^{-3}\ \text{M}$

$[KOH]$ is strong base so we have the following relation

$[KOH]=[OH^{-}]=10^{-3}\ \text{M}$

$pOH=-\log [OH^{-}]=-\log10^{-3}$

$\Rightarrow pH=14-3=11$

So, pH of the solution is 11

5 0

3 years ago

Which property increases as you move down a column in the periodic table?

777dan777 [17]

Answer:

I think it's c have a good day

7 0

3 years ago

Read 2 more answers

When electrons move through a series of electron acceptor molecules in cellular respiration ________.

Verizon [17]

Answer:

oxygen is reduced to form water.

Explanation:

Cellular respiration

It is the set of reactions in which the ac. Pyruvic produced by glycolysis is split into CO2 and H2O and 36 ATP are produced. In eukaryotic cells breathing is performed in the mitochondria. It occurs in two stages:

- PIRUVATE OXIDATION

- AC CYCLE TRICARBOXYL

The "problem" with fermentation is that, by using organic molecules as terminal electron acceptors and having to dispose of the resulting product (lactic acid / ethanol) as waste, the potential energy of these compounds is lost.

The alternative solution is to use some non-organic molecule that can accept electrons and thus become a reduced molecule. Oxygen is perfect for this, because after receiving the electrons it combines with two protons, thus becoming the perfect liquid residue for the environment: H2O.

3 0

3 years ago

A peach falls from a tree with an acceleration of 9.8 m/s2. The peach has a mass of

svlad2 [7]

Answer:

F = 0.0725 N

Explanation:

Given that,

The mass of peach, m = 7.4 g

We need to find the force acts on the peach when it falls from a tree. The force is given by :

F = mg

So,

$F=7.4\times 10^{-3}\times 9.8\\\\F=0.0725\ N$

So, the force is 0.0725 N.

5 0

3 years ago

In an experiment, the molar mass of the compound was determined to be 118.084 g/mol. What is the molecular formula of the compou

pishuonlain [190]

Answer:

Succinic acid

Explanation:

The most common possibility is succinic acid

As it has decimals after whole no till hundredth it contains OH and C in most of the cases .

Let's check for succinic acid

C4H_6O_6
4(12)+4(16)+6
64+48+6
118u

Yes approximately equal

Molecular formula is.

(CH_2)_2(CO_2H)_2

3 0

2 years ago