Get a free home demo of LearnNext

Available for CBSE, ICSE and State Board syllabus.
Call our LearnNext Expert on 1800 419 1234 (tollfree)
OR submit details below for a call back

clear
X
learnnextPlus

Introducing NextGurukul app, India's Largest Collaborative Learning Community for Learners and Educators - Now available with a Fresh UI and Exciting New Features!

Install Now
searchtune
What people are asking?
Class-VII
Science
Acids, Bases and Salts

Nyaipriya

Aug 23, 2013

what happens when zinc metal reacts with nitric acid?

Ans:  Zinc reacts with dilute Nitric acid to produce Zinc nitrate, nitric oxide and water
 3Zn + 8HNO₃ → 3Zn(NO₃)â‚‚ + 2NO + 4Hâ‚‚O
Zinc...

Answer (1)
Class-VII
Science
Acids, Bases and Salts

Sanjeev Tiwari

May 15, 2015

What happens when Acetic acid reacts with calcium hydroxide?

When acetic acid reacts with calcium hydroxide, calcium acetate and water are formed.
2CH<...

Answer (1)
Class-VII
Science
Acids, Bases and Salts

Vivek

Aug 1, 2013

State differences between acids and bases.

This answer has an image. Please click on the question to read more.

Answer (16)
Class-VII
Science
Acids, Bases and Salts

Sanjeev Tiwari

May 15, 2015

All alkalies are bases but all bases are not alkalies. Explain this statement

This answer has an image. Please click on the question to read more.

Answer (2)
Class-VII
Science
Acids, Bases and Salts

Ashely John

Jul 20, 2013

name some

Turmeric,China rose petals,red cabbage juice and lithium 

 

 

Answer (6)
Class-VII
Science
Acids, Bases and Salts

Nabanita Ganguly

Aug 21, 2013

write in full description

Take a cupfull of water in a 250ml beaker and add a few drops of dilute sulphuric acid. Heat the water. when it starts boiling add copper sulphate powder to the water and stir it continously.continue adding cop...

Answer (2)
Class-VII
Science
Acids, Bases and Salts

Kshama Misra

Apr 19, 2015

what are indicators?

Indicators:  

Answer (2)
Class-VII
Science
Acids, Bases and Salts

Sanurag

Dec 28, 2014

Why calamine solution is applied on the skin when an ant bites?

An Ant sting contains formic acid. So here, when an ant bites it injects formic acid into your skin and this acid reacts with your skin and causes pain. So, calamine solution is applied to neutralise the effect...

Answer (2)
Class-VII
Science
Acids, Bases and Salts

Sanjeev Tiwari

May 15, 2015

What happens when Hydrochloric acid reacts with sodium hydroxide?

The reaction of an acid with a base to give salt, water and heat...

Answer (1)
Class-VII
Science
Acids, Bases and Salts

Rajat

Apr 1, 2020

_____ is a symbiotic association of agae and fungi

 

 

Lichen  is a symbiotic association of algae and fungi

Answer (1)
Class-VII
Science
Acids, Bases and Salts

Nyaipriya

Aug 23, 2013

what happens when zinc metal reacts with nitric acid?

Ans:  Zinc reacts with dilute Nitric acid to produce Zinc nitrate, nitric oxide and water
 3Zn + 8HNO₃ → 3Zn(NO₃)â‚‚ + 2NO + 4Hâ‚‚O
Zinc...

Answer (1)
Class-VII
Science
Acids, Bases and Salts

Sanjeev Tiwari

May 15, 2015

What happens when Acetic acid reacts with calcium hydroxide?

When acetic acid reacts with calcium hydroxide, calcium acetate and water are formed.
2CH<...

Answer (1)
Class-VII
Science
Acids, Bases and Salts

Vivek

Aug 1, 2013

State differences between acids and bases.

This answer has an image. Please click on the question to read more.

Answer (16)
Class-VII
Science
Acids, Bases and Salts

Sanjeev Tiwari

May 15, 2015

All alkalies are bases but all bases are not alkalies. Explain this statement

This answer has an image. Please click on the question to read more.

Answer (2)
Class-VII
Science
Acids, Bases and Salts

Ashely John

Jul 20, 2013

name some

Turmeric,China rose petals,red cabbage juice and lithium 

 

 

Answer (6)
Class-VII
Science
Acids, Bases and Salts

Nabanita Ganguly

Aug 21, 2013

write in full description

Take a cupfull of water in a 250ml beaker and add a few drops of dilute sulphuric acid. Heat the water. when it starts boiling add copper sulphate powder to the water and stir it continously.continue adding cop...

Answer (2)
Class-VII
Science
Acids, Bases and Salts

Kshama Misra

Apr 19, 2015

what are indicators?

Indicators:  

Answer (2)
Class-VII
Science
Acids, Bases and Salts

Sanurag

Dec 28, 2014

Why calamine solution is applied on the skin when an ant bites?

An Ant sting contains formic acid. So here, when an ant bites it injects formic acid into your skin and this acid reacts with your skin and causes pain. So, calamine solution is applied to neutralise the effect...

Answer (2)
Class-VII
Science
Acids, Bases and Salts

Sanjeev Tiwari

May 15, 2015

What happens when Hydrochloric acid reacts with sodium hydroxide?

The reaction of an acid with a base to give salt, water and heat...

Answer (1)
Class-VII
Science
Acids, Bases and Salts

Rajat

Apr 1, 2020

_____ is a symbiotic association of agae and fungi

 

 

Lichen  is a symbiotic association of algae and fungi

Answer (1)

Filters