1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aleksandr-060686 [28]
2 years ago
11

Help !!I can't understand it ​

Mathematics
2 answers:
siniylev [52]2 years ago
8 0

1.

a.) The color of <u>Aqueous solution</u> turns <u>light green</u> from <u>blue</u>, due to formation of <u>iron sulphate</u> .

b.) The color of the <u>Aqueous solution</u> turns <u>colorless</u> from <u>blue</u> due to formation of <u>zinc sulphate</u>.

2. <u>Bells</u> used in temples aren't made up of wood because wood isn't <u>sonorous</u> and hence can't produce <u>ringing sound</u>, and hence metals are used in making bells.

3. <u>phosphorous</u> is kept in water because it is <u>highly reactive</u> and reacts vigorously with air if left free in atmosphere .

4.

a.) CuSO4 + Mg =》MgSO4 + Cu

this is a <u>single displacement reaction</u>, where <u>Magnesium</u> being more reactive than <u>Copper</u>, displaces copper from its compound (copper sulphate) to form <u>magnesium sulphate</u>.

b. H2SO4 + Zn =》ZnSO4 + H2

this is a <u>single displacement</u><u> </u><u>reaction</u>,

where <u>Zinc</u> being more reactive than

<u>hydrogen</u>, displaces hydrogen from its

compound (sulphuric acid) to form <u>Zinc</u><u> </u><u>sulphate</u>.

Helen [10]2 years ago
7 0

<h3>1.</h3>

a.) <em><u>The color of Aqueous solution turns</u></em>

<em><u>The color of Aqueous solution turnslight green from blue, due to formation</u></em>

<em><u>The color of Aqueous solution turnslight green from blue, due to formationof iron sulphate.</u></em>

b.) <em><u>The color of the Aqueous solution</u></em>

<em><u>The color of the Aqueous solutionturns colorless from blue due to</u></em>

<em><u>The color of the Aqueous solutionturns colorless from blue due toformation of zinc sulphate.</u></em>

<h3>2.</h3>

<em><u>Bells used in temples aren't made upof wood because wood isn't sonorousand hence can't produce ringing sound,and hence metals are used in makingbells.</u></em>

<h3><em><u>3</u></em><em><u>.</u></em></h3>

<em><u>phosphorous is kept in water becauseit is highly reactive and reacts vigorouslywith air if left free in atmosphere</u></em>

<h3>4.</h3>

<em><u>a.) CuSO4+ Mg MgS04 +Cu</u></em>

<em><u>this is a single displacement reaction,where Magnesium being more reactivethan Copper, displaces copper from itscompound (copper sulphate) to formmagnesium sulphate.</u></em>

<em><u>b. H2S04 +Zn =) ZnS04+H2</u></em>

<em><u>b. H2S04 +Zn =) ZnS04+H2this is a single displacement reaction,where Zinc being more reactive thanhydrogen, displaces hydrogen from itscompound (sulphuric acid) to form Zincsulphate.</u></em>

Step-by-step explanation:

I hope it helps

have a great day

#Liliflim

You might be interested in
I am having trouble learning how to convert an equation to standard form can someone please explain this to me? ( my teacher ten
Molodets [167]
First, you have to simplify the equation:
y+3 = 3(x+5)
y+3=3x+15
So you multiply what’s inside the brackets (x+5) by the factor (3). So 3•x=3x, 3•5=15.
Then you rearrange the equation as necessary to convert it into standard form, which is Ax + By = C
3 0
3 years ago
What is the x value and y value of the point of intersection of y = -3x + 10 and y = 2x - 5?
kakasveta [241]
So you can use substitution...which is where you have Y all alone on one side of your equation and then plug it in to the other equation...2x-5=-3x+10 and you.solve for X. So x= 3. Then plug 3 into one of the original equations... Y=2(3)+5. So Y= 11.
8 0
3 years ago
The sum of two consecutive integers is 65. Find the two integers.
Oliga [24]
32+33=65 
60/2 is 30, so they have to be in their thirties. Then 2+3=5, therefore they must be 32 and 33
7 0
3 years ago
A house has decreased in value by 26% since purchased if its current value is 185,00 what was its value when it was purchased
Elodia [21]
The answer is 23,310 because it’s right
6 0
3 years ago
What is 30% off of 25??
Leto [7]

Answer:

7.5 = 8

Step-by-step explanation:

Step 1:

30/100=0.3

Step 2:

0.3 x 25 = 7.5

Round: 8

7 0
3 years ago
Read 2 more answers
Other questions:
  • Ellen is playing a video game in which she captures butterflies. There are 5 butterflies onscreen, but the number of butterflies
    10·1 answer
  • The difference of the square of a number and 16 is equal to 6 times that number. Find the negative solution.
    15·1 answer
  • What is the expanded form for 11,760,825
    8·1 answer
  • On a number line, a number, b, is located the same distance from 0 as another number, a, but in the opposite direction. The numb
    11·2 answers
  • 3500 in standard form
    15·1 answer
  • MATH-IXL , Look at the picture below to answer CORRECTLY. Only give me one right answer So i can mark you as Brainliest!
    6·1 answer
  • What is the cube root of -12 to the nearest integer
    12·2 answers
  • 4. A donut shop bakes 4 dozen donuts every 18 minutes. How long did it take for the bakery to complete its
    7·2 answers
  • Emily spent $4.5 on clothes and had $15 left with her. how much money did Emily have in the beginning?
    5·2 answers
  • Find the area of the rectangle
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!