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coldgirl [10]
3 years ago
12

A beaker contain 421ml of water. the density of the water

Chemistry
1 answer:
djyliett [7]3 years ago
7 0
We need to know the mass of the water and the volume so we can divide and find the density.
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One way to identify the type of radioactive decay produced in a reaction is to pass the emission through an electric field Descr
Elena L [17]

Decay of Uranium-238 produces gamma radiaton whereas decay of thorium-234 releases beta radiation.

<h3>What type of radiation is produced?</h3>

In the decay of U-238, two gamma rays of different energies are emitted in addition to the alpha particle while on the other hand, in the decay of thorium-234 , beta rays are emitted.

So we can conclude that decay of Uranium-238 produces gamma radiaton whereas decay of thorium-234 releases beta radiation.

Learn more about decay here: brainly.com/question/25537936

5 0
2 years ago
A piece of metal ore has a density of 1.72 g/mL. When a student places it into a graduated cylinder containing water, the liquid
Hunter-Best [27]

Answer:

9g

Explanation:

Since..., Density = mass/volume

;Firstly calculate the volume change of the water when the metal is placed in,

;Volume = 26.47 - 21.25

;Volume = 5.22 mL

Hence the mass of the ore;

; Making mass the subject of formula in the above equation,

Mass = Density × Volume

; Mass = 1.72 × 5.22

; Hence the mass = 8.9784

= 9g

5 0
3 years ago
Is melting an ice cube on your hand a chemical or physical and why? Need reasons!!
xenn [34]
Physical, because the ice is only changing it's state. It's not changing to a new substance.
8 0
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Identify these reactions
olga2289 [7]

Answer:

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What happens in the process of beta decay?
Andrej [43]

Answer:

A neutron transforms into a proton and an electron.

Explanation:

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