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rosijanka [135]
3 years ago
15

How does an indicator show the difference between an acid and an alkali?​

Chemistry
1 answer:
deff fn [24]3 years ago
8 0

Answer: There are various indicators like litmus paper, phenolphthalein, universal indicator etc. that changes its colour to show the difference between acid and alkali.

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What happens to the temperature inside the terrarium?
stiks02 [169]

Answer:

it drops?

Explanation:

8 0
3 years ago
Why do real gases not behave exactly like ideal gases?
lina2011 [118]

Answer:

The molecules have (a) volume and (b) attractive forces  

Step-by-step explanation:

At ordinary conditions, the molecules are so far apart that the gases behave almost ideally.

However, if you use high pressure and/or low temperatures, you force the molecules to be close together.

There are <em>two competing effects</em>:

  1. The attractive forces become much stronger at close distances, so the volume is less than that predicted by the Ideal Gas Law.
  2. The  volume of the molecules becomes a significant portion of the volume of the container. The molecules have less volume in which to can move around, so the pressure is higher than that predicted by the Ideal Gas Law.                                                                                                                                                                                                                                                                                                                                                                              
3 0
4 years ago
Read 2 more answers
Which of the following is true regarding the transition elements?
e-lub [12.9K]
Pls complete your question
8 0
4 years ago
The half-life of gold-198 is 2.7 days. After
Pie

Answer: 8.1 days

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant = x

a - x = amount left after decay process= \frac{x}{4} 

a) to find rate constant

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.693}{2.7days}=0.257days^{-1}

b) for completion of one fourth of reaction

t=\frac{2.303}{k}\log\frac{x}{\frac{x}{4}}

t=\frac{2.303}{0.257}\log{4}

t=8.1days

Thus after 8.1 days , one fourth of original amount will remain.

8 0
4 years ago
In which isine is the strong nuclear force na strong enough to balance destuetatic forces between Gond?
romanna [79]

Answer:

neon 21 ang sagot diyan

Explanation:

iyan ang sagot ko its a frank hindi yan ang sagot ko

5 0
3 years ago
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