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Black_prince [1.1K]
3 years ago
6

25 POINTS TO WHOEVER CAN FILL THIS OUT! Radioactivity Decay

Chemistry
1 answer:
Degger [83]3 years ago
3 0

Answer:

how long?

Explanation:

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An atom of which of these elements most likely forms an anion? A. AI B. Br C. Ca D. Mg
Papessa [141]
The answer is B. A good way determine this is how far right the element is on the periodic table. The further right the element is, the more electronegative it is meaning it is more willing to accept an electron. This can be explained using the valence electrons and how many need to be added or removed to complete the octet. The further right you are, the easier it is for the element to just gain a few electrons instead of loose a bunch. Noble gases are the exception to this since they don't normally react though.
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The reason an increase in substrate concentration does not increase the reaction rate indefinitely is because
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Answer:

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How could an alpha particle pass straight through the metal foil and strike the center of the phosphor screen on the other side
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4 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
IS THIS RIGHTTTT?????????
denis23 [38]

The first diagram is showing carboxylic acid because carboxyl contains a Carbon atom as the central atom bonded with  OH group, a double bonded Oxygen, hydrogen ofc, and a lone R group.

2. It is ester group

3. Correct its ether

4. It's the exact diagram for ethyl alcohol, so correct

WOOT WOOOT

7 0
3 years ago
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