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Viktor [21]
3 years ago
7

Clay has a negative charge. What (3) nutrients need by plants have a positive charge?

Chemistry
1 answer:
zimovet [89]3 years ago
3 0
Calcium, sodium and hydrogen
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What is the density of an 820 g sample of pure silicon occupying a 350 cm3 container
vodka [1.7K]

Answer:

2.343 g/ cm³

Explanation:

Density:

Density is equal to the mass of substance divided by its volume.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

Symbol:

The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.

Given data:

density = ?

volume= 350 cm³

mass= 820 g

Now we will put the values in the formula,

d= m/v

d= 820 g/ 350 cm³

d= 2.343 g/ cm³

The density of silicon is 2.343 g/ cm³

6 0
3 years ago
Would you rather play warfare of play fortnight
kakasveta [241]

Answer:

i rather just sit on a guys lap and watch him play than me playing cause those games mad frustrating

Explanation:

5 0
3 years ago
1. If 500 ML of a 3 L sample of 0.20 M sodium chloride solution is spilled, what is the concentration of the remaining solution?
photoshop1234 [79]
D. 0.2 M

The concentration of a solution is basically the ratio of the solute present to the solvent in the solution. This is an intrinsic property, independent of the amount of solution that is present. A similar example is that of density. No matter the size of a sample, the density and concentration of that sample remain constant.
3 0
3 years ago
Do hot things, like water or magma, always rise?
Olegator [25]

Answer:

Explanation:

No not always but it is more likely they will

8 0
3 years ago
Round off the measurement to three significant figures 12.17º C
prohojiy [21]
12.2 C
It has 3 significant figures now.
6 0
3 years ago
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