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rosijanka [135]
3 years ago
13

How long does it take for a purple stem plant to grow

Chemistry
1 answer:
Gala2k [10]3 years ago
4 0
I couldn't really find anything about the growth time but it does say that it could remain viable in soil for up to 40 years

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Instructions: Use the periodic table to answer the questions below:
Contact [7]

Answer:

1. 7 periods

2. 18 groups

3.Magnessium

4.Fluorine

5.Nickel

6.Radon

7.Francium

8.Lead

Explanation:

3 0
3 years ago
For the reaction depicted in the molecular scenes, X is red and Y is green.(a) Write a balanced equation.
Vadim26 [7]

The balanced equation based on the scenes is given by ,

X2 + 3Y2 → 2XY3

Given ,

For the reaction depicted in the molecular scenes , X is red and Y is green .

Through observing the scenes , the balanced chemical equation of the scenes is given by ,

The scenes indicates 3 moles of molecule X2 reacts with 9 moles of molecule Y2 to form 6 moles of tetra atomic molecules XY3.

Thus the balanced equation is given by ,

3X2 + 9Y2 → 6XY3

Divide each side of the equation by 3 , we get , the balanced equation as,

X2 + 3Y2 → 2XY3

<h3>What is a balance chemical reaction ?</h3>

A balanced chemical reaction is a type of reaction which include the reactants and products in same amount i.e. the no of mole on both side of the reaction is remains same or balanced .

Learn more about chemical reaction here :

brainly.com/question/1893305

#SPJ4

3 0
1 year ago
Please help the anion , cation , neither is the options. for all of them​
natta225 [31]

Answer:

Cation

Anion

Cation

Cation

Explanation:

If an atom, or atoms, has a balanced number of electrons (negative charge) and protons (positive charge) they are neutral overall. However, if they are not balanced, they will be charged. These charged species are called ions.

What is an anion?

An anion has more electrons than protons, consequently giving it a net negative charge. For an anion to form, one or more electrons must be gained, typically pulled away from other atoms with a weaker affinity for them. The number of electrons gained, and so the charge of the ion, is indicated after the chemical symbol, e.g. chlorine (Cl) gains one electron to become Cl-, whilst oxygen (O) gains two electrons to become O2-.

What is a cation?

A cation has more protons than electrons, consequently giving it a net positive charge. For a cation to form, one or more electrons must be lost, typically pulled away by atoms with a stronger affinity for them. The number of electrons lost, and so the charge of the ion, is indicated after the chemical symbol, e.g. silver (Ag) loses one electron to become Ag+, whilst zinc (Zn) loses two electrons to become Zn2+.

Source: Cation vs Anion: Definition, Chart and the Periodic Table By  

Karen Steward (PhD)

7 0
2 years ago
What are the five branches of Earth Science?
AlladinOne [14]
Branches of earth include geology, oceanography, meteorology, climatology, environmental science, and astronomyscience
3 0
3 years ago
Read 2 more answers
If I have 21,000 mL of gas at a temperature of 870C and a pressure of 101 atm, what will be the pressure of the gas if I raise t
erastovalidia [21]

Answer:

We  have,

Initial volume is V  

1

​  

 

Initial temprature is T  

1

​  

=75  

0

C

Initial pressure is P  

1

​  

 

So, final temprature is T  

2

​  

=273+75=348K

V  

2

​  

=V  

1

​  

−  

100

15

​  

V  

1

​  

 

=  

100

85V  

1

​  

 

​  

 

Applying the gas formula,

T  

1

​  

 

P  

1

​  

V  

1

​  

 

​  

=  

T  

2

​  

 

P  

2

​  

V  

2

​  

 

​  

 

348

P  

1

​  

V  

1

​  

 

​  

=  

T  

2

​  

×100

2P  

1

​  

×85V  

1

​  

 

​  

 

T  

2

​  

=  

100

2×85×348

​  

 

T  

2

​  

=591.6K

4 0
3 years ago
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