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dexar [7]
3 years ago
6

Who is ghana's presnt​

Chemistry
1 answer:
enyata [817]3 years ago
3 0

aquafaba is president of Ghana

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How is a model of an atom different from a real atom? A. A model of an atom is not as big as an actual atom. B. A model of an at
tatyana61 [14]
The option that would best contrast the real and the model atoms is letter "D. model of an atom is not as small as an actual atom". The size of an atom is said to be no more than 0.1 to 0.5 nanometers. The models are used to proper illustrate the atom's physical attributes. That is why, it needs to be bigger in size. 
5 0
3 years ago
The density of lava is 3.1 g/cm². It has a volume of 2700 cm3. How much does this block of lava weigh?
konstantin123 [22]

Answer:

Mass of lava is 8370 g.

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 of lava = 3.1 g/cm³

volume= 2700 cm³

mass= ?

Solution:

d = m/v

m = d×v

m = 3.1 g/cm³×2700 cm³

m = 8370 g

4 0
3 years ago
A binary molecule consists of how many atoms?<br> O1<br> 02<br> 3<br> 4
krek1111 [17]

Answer:

2

Explanation:

BIonary bi means 2

i hope this helps :)

3 0
2 years ago
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