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ELEN [110]
3 years ago
5

What is radioactivity.

Chemistry
1 answer:
Serggg [28]3 years ago
5 0
Radioactivity another name for radioactive decay. Radioactivity refers to particles emitted from nuclei as a result of nuclear instability. 
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Write the reaction that occurs when propyl methanoate is hydrolyzed in water and in NaOH
Free_Kalibri [48]

An ester , propyl methanoate ( HCOOC₃H₇) when reacts with sodium hydroxide( NaOH) forms sodium methanoate (HCOONa) as the main product and propanol (C₃H₇OH).

The reaction is as follows:

HCOOC₃H₇+NaOH ⇒HCOONa + C₃H₇OH

So when propyl methanoate is hydrolyzed in water and in NaOH then sodium methanoate (HCOONa) as the main product and propanol (C₃H₇OH) forms

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6. If you have a bottle with Helium & Nitrogen at room temperature, how does the speed of the particles compare?
Anon25 [30]
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3 years ago
Why is it not advisable to wash the thermometer with hot water?
daser333 [38]
It is advisable not to wash the thermometer and hot water because it made cause the thermometer to break and mercury to leak out from it... it can also damage the accuracy of the thermometer
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What happens if ..increasing the atomic number in period 1 (concerning the atomic size)​ .
polet [3.4K]

When the atomic number increases The atomic size will be larger.

7 0
2 years ago
The quantity of energy released or absorbed as heat during a chemical reaction is called the 28. a. temperature. c. entropy d. f
Tatiana [17]

Answer: enthalpy of reaction.

Explanation:

Temperature of the gas is defined as the degree of hotness or coldness of a body. It is expressed in units like ^0C and K

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Enthalpy of the reaction is the difference between the energy of products and the energy of reactants. it is either the heat released or absorbed during the reaction. It is either positive or negative.

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3 years ago
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