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3 years ago

The storage method used for radioactive wastes generated from fission nuclear reactors must be designed to last for how long?

Chemistry

2 answers:

babymother [125]3 years ago

8 0

Answer: c

Explanation:

satela [25.4K]3 years ago

7 0

Answer:

The right answer is centuries

Explanation:

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PLEASE HELP

Likurg_2 [28]

Answer: 86.1

Explanation: because i did this in 7th grade

5 0

2 years ago

find the volume of an item using a scale and waterA crown made of alloy of gold and silver has a volume of 60cm3and mass of 1050

KiRa [710]

Answer:

The mass of gold in crown is 960.61 g.And the volume of gold is $49.77 cm^3$ .

Explanation:

Density is defined as mass of the substance present in unit volume of the substance.

Mass of gold in an alloy of crown= m

Mass of silver in an alloy of crown = M

Volume gold in an alloy of crown= v

Volume of silver in an alloy of crown = V

Density of gold = $19.3 g/cm^3$

Density of silver = $10.5 g/cm^3$

Volume of the crown = $60 cm^3$

$60 cm^3=v+V$

$60 cm^3=\frac{m}{19.3 g/cm^3}+\frac{M}{10.5 g/cm^3}$ ..(1)

Mass of eh crown = 1050 g

$1050g =m+M$ ..(2)

Solving equation (1) and (2):

m = 960.61 g

M = 89.39 g

Volume of the gold = v = $\frac{960.61 g}{19.3 g/cm^3}=49.77 cm^3$

Volume of silver = V = $60 cm^3-v=60 cm63-49.77 cm63=10.23 cm^3$

The mass of gold in crown is 960.61 g.And the volume of gold is $49.77 cm^3$ .

4 0

3 years ago

How would you describe the change in the arrangement of particles as heat energy and temperature increase?

snow_tiger [21]

Since there is more energy added as heat rises, the particles disperse and have larger movements.

6 0

3 years ago

Read 2 more answers

I haven’t shifted before I tried like once a few months ago and I keep wanting to shift and last night I had a dream I did is th

shepuryov [24]

Yes a sign of shifting is having a dream about ur dr

3 0

3 years ago

A system fitted with a piston expands when it absorbs 53.1 ) of heat from the surroundings. The piston is working against a pres

Hoochie [10]

Answer:

d. 60.8 L

Explanation:

Step 1: Given data

Heat absorbed (Q): 53.1 J

External pressure (P): 0.677 atm

Final volume (V2): 63.2 L

Change in the internal energy (ΔU): -108.3 J

Step 2: Calculate the work (W) done by the system

We will use the following expression.

ΔU = Q + W

W = ΔU - Q

W = -108.3 J - 53.1 J = -161.4 J

Step 3: Convert W to atm.L

We will use the conversion factor 1 atm.L = 101.325 J.

-161.4 J × 1 atm.L/101.325 J = -1.593 atm.L

Step 4: Calculate the initial volume

First, we will use the following expression.

W = - P × ΔV

ΔV = - W / P

ΔV = - 1.593 atm.L / 0.677 atm = 2.35 L

The initial volume is:

V2 = V1 + ΔV

V1 = V2 - ΔV

V1 = 63.2 L - 2.35 L = 60.8 L

7 0

3 years ago