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Katen [24]
2 years ago
11

Name some radioactive elements.​

Chemistry
2 answers:
natulia [17]2 years ago
6 0

Hello there!

Uranium

Protactinium

Radium

Polonium

Actinium

Neptunium

Curium

Einsteinium

Hope it helps

Rainbow [258]2 years ago
5 0

Answer:

Alpha Radiation.

Uranium.

Radium.

Radon.

Polonium.

Actinium.

Protactinium.

Thorium.

Explanation:

Thanks!!!!!

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Sindrei [870]
A) Fe⁰ ----> Fe⁺³ +3e⁻   oxidation        | *2
b) <u>Cu⁺² + 2e⁻ -----> Cu⁰  reduction      |*3</u>

c) 2Fe⁰ +3Cu⁺² -----> 2Fe⁺³ + 2Cu⁰
6 0
3 years ago
Your mommy buys you a helium balloon at the circus. It has a volume of 2.95 liters. What is the mass
GrogVix [38]

Answer:

if my calculation are correct, it's 295 grams

Explanation:

because liters converted to grams is .1=100 so if you take 2.95 times 100, it equals 295

4 0
2 years ago
Hey everyone!! Can someone please explain the periodic table of elements and whoever wants to talk I can talk to!!
Burka [1]

Answer:

The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. ... For instance, all the group 18 elements are inert gases.

Explanation:

3 0
3 years ago
Please help me!!!!!!!!!!!!!
fenix001 [56]

1)The limiting reactant will be aluminum acetate

2) The mass of aluminum hydroxide formed will be 9.75 grams.

<h3>Stoichiometric problem</h3>

The equation of the reaction is as below:

Al(C_2H_3O_2)_3 + 3NaOH --- > 3C_2H_3NaO_2 + Al(OH)_3

The mole ratio of the 2 reactants is 1:3.

Mole of 100 mL. 1.25 mol/L Al(C_2H_3O_2)_3 = 0.1 x 1.25 = 0.125 mol

Mole of 300 mL, 2.30 mol/L NaOH = 0.3 x 2.3 = 0.69 mol

Thus, aluminum acetate is limited.

Mole ratio of  Al(C_2H_3O_2)_3 and Al(OH)_3 = 1:1

Equivalent mole of Al(OH)_3 = 0.125 mol

Mass of 0.125 mole Al(OH)_3 = 0.125 x 78 = 9.75 grams.

More on stoichiometric calculations can be found here: brainly.com/question/27287858

#SPJ1

4 0
2 years ago
Which statements describe the death of stars? Check all that apply.
Sveta_85 [38]

Answer:A and B

Explanation:a stats final stages of life depend on its mass and stars die when they run out of fuel

5 0
3 years ago
Read 2 more answers
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