Answer:
Happy Earth Day to u too.
Step-by-step explanation:
1) Plant a sapling
2) Draw a poster related to Earth Day
3) Color a picture of the Earth/ tree
4) Decorate ur room with plants
5) Prepare a speech on Earth Day
6) Do T-shirt designing with Earth as a design
7) Buy a paper/ cloth bag
8) Recycle what u use
9 Avoid plastic
10) Use bikes or walk instead of vehicles
Answer:
its 90,000
Step-by-step explanation:
just put the zeros together then multiply 3x3
Answer:
13
Step-by-step explanation:
We can add 1 to both sides of the second equation and divide by 2 to get
x = (y-1)/2
We can then substitute x in the first equation to get
(y-1)/2 + 7 = 2y
Multiply by 2
y-1 + 14 = 2y
Subtract y and combine like terms
y = 13
Answer:
It's 8 the answer is 8
Step-by-step explanation:
If the solution is blue-green, this indicates that some copper is still present in the solution and that not all of it has precipitated. Expect it to be too low because you will have less mass.
With very few exceptions, all copper(I) (cuprous) compounds are diamagnetic and colorless. Cu2O, Cu2Cl2, and cuprous sulfide are a few of the significant commercial compounds of copper(I) (Cu2S).
The molar mass of the element copper is determined by looking at its average atomic mass, which is 63.55 AMU on the periodic table. Since it is also our molar mass, we will now put it in a different unit: grams over moles (63.55 gmol). That is copper's molar mass.
If the solution is blue-green, there is still copper in the solution and not all of it has precipitated. Because you will have less bulk, anticipate it to be too low.
To know more about copper, refer to this link:
brainly.com/question/1543891
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