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3 years ago

What is produced during radioactive decay?

Chemistry

2 answers:

Rainbow [258]3 years ago

7 0

D. Both particles and high energy radiation

GenaCL600 [577]3 years ago

6 0

Answer:

D. Both particles and high energy radiation

Explanation:

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Elements are organized into groups / families according to their physical and chemical properties. Identify the elements that's

Kryger [21]

Answer:

1 valence - Alkali Metals: Li Lithium, Na Sodium, K Potassium

2 valence - Alkaline Earth Metals: Be Beryllium, Mg Magnesium, Ca Calcium

3 valence - Non-metals: B Boron, Al Aluminium

4 valence - Non-metals: C Carbon, Si Silicon

5 valence - Non-metals: N Nitrogen, P Phosphorus

6 valence - Non-metals: O Oxygen, S Sulfur, Se Selenium

7 valence - Halogens: F Fluorine, Cl Chlorine, Br Bromine

8 valence - Noble Gases: He Helium, Ne Neon, Ar Argon

3 0

4 years ago

Name given to the type of microscope that only has one lens.

NeTakaya

Answer:

simple microscope has only one lens

8 0

3 years ago

Which set of characteristics listed below are unique to the inner<br> planets?

Cerrena [4.2K]

Mercury,Mars,Venus,Earth

5 0

4 years ago

You are preparing some solutions for your instructor and have been asked to prepare 3.00 L of a 0.250M sodium hydroxide solution

grigory [225]

Answer:

C. 30.0 g NaOH and add water until the final solution has a volume of 3.00 L.

Explanation:

Molarity of a substance , is the number of moles present in a liter of solution .

M = n / V

M = molarity

V = volume of solution in liter ,

n = moles of solute ,

from the question ,

M = 0.250M

V = 3.00 L

M = n / V

n = M * v

n = 0.250M * 3.00 L = 0.75 mol

Moles is denoted by given mass divided by the molecular mass ,

Hence ,

n = w / m

n = moles ,

w = given mass ,

m = molecular mass .

From the question ,

n = 0.75 mol NaOH

m = molecular mass of NaOH = 40 g/mol

n = w / m

w = n * m

w = 0.75 mol * 40 g/mol = 30.0 g

Hence , by using 30.0 g of NaOH and dissolving it to make up the volume to 3 L , a solution of 0.250 M can be prepared .

4 0

3 years ago

What do you use to find the actual amount of reactants

Rasek [7]

You need to use Stoichiometry

6 0

3 years ago