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Orlov [11]
3 years ago
7

Why are pennies good for simulating radioactive atoms? Check all that apply. Pennies have two sides—one to represent radioactive

form and another to represent nonradioactive form. You can easily see the two different forms. You can create a large sample of pennies. Pennies are not actually hazardous. The chance of an atom decaying during a half-life cycle is 50%, the same as flipping a coin and getting tails.
Chemistry
2 answers:
Oksi-84 [34.3K]3 years ago
4 0

Answer: all of those are the right choices. :) promise

Explanation:

Gnom [1K]3 years ago
4 0

Answer:

Pennies have two sides—one to represent radioactive form and another to represent nonradioactive form.

You can easily see the two different forms.

You can create a large sample of pennies.

Pennies are not actually hazardous.

The chance of an atom decaying during a

half-life cycle is 50%, the same as flipping a coin and getting tails.

Explanation:

on edge 2020

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A high pH value indicates _____.
Mumz [18]

Answer:

A high pH value indicates a high concentration of OH- ion

Explanation:

The higher the OH- ion concentration high will be the pH.In simple words if the concentration of OH- ions are increased then the pH of the solution will also increase which means the solution will turns towards basic with increasing its OH- ion concentration.

  Let us assume that the OH- concentration of a solution is  10-9  so the pOH of that solution will be 9 and the pH will be 5.

  Now the concentration of OH-ion of that solution is increased from 10-9 to 10-8 now the pOH of that solution is 8 and the pH is 6.

3 0
3 years ago
A student measures the mass of a 6.0 cm3 block of brown sugar to be 10.0 g. What is the density of the brown sugar?
Alex17521 [72]

Answer:

1.67g/cm3

Explanation:

The formula for density is d=\frac{m}{v} . The m variable stands for mass and the v variable stands for volume.

The mass of the brown sugar is 10.0g and the volume is 6.0cm3, so we can plug those values into the equation.

d=\frac{10g}{6cm^{3} }

d=1.67\frac{g}{cm^{3} }

Rounded to 3 significant figures, the density of the block of brown sugar is 1.67 g/cm3. If the mass is in grams and the volume is in cm3, the unit for the final answer is \frac{g}{cm^{3} } (grams per centimetres cubed).

8 0
3 years ago
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Is a mushroom a heterotroph or autotroph
nadezda [96]

Answer:

A mushroom is a heterotroph.

Explanation:

Mushrooms are fungi, which are heterotrophs because they depend on other organisms for their food.

5 0
3 years ago
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Polyatomic ion formula for aluminum hydroxide
KonstantinChe [14]

Answer:

Al(OH)3 ? i hope this is what you mean.

7 0
3 years ago
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5. Calcium carbonate decomposes at 12000 C to form carbon dioxide and calcium oxide. If 25 liters of carbon dioxide are collecte
Anika [276]

Answer:

5)0.53liters

6)1.634.6°c

Explanation:

using \:  charles \: law \\ v1 \div t1 = v2 \div t2

5) v1=25liters, t1=12000°c. v2=?, t2=250°c

v2=(250×25)/12000

v2=6250/12000

v2=0.52liters

6)v1=130,v2=85, t1=2500, t2=?

t2=(85×2500)/130

t2=212500/130

t2= 1634.6°c

5 0
2 years ago
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