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2 years ago

According to the periodic trends, Calcium has a greater atomic radius than magnesium

Chemistry

2 answers:

lions [1.4K]2 years ago

7 0

its radius is smaller

Damm [24]2 years ago

7 0

Answer:

nope but whats the question?

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Why do isotope decay

BaLLatris [955]

Instability

Explanation:

Isotopes decays because they are unstable. Stable isotopes do not decay.

For every atomic nucleus, there is a specific neutron/proton ratio.
This ratio ensure that a nuclide is stable.
For example, fluorine F, is 10/9 stable.
Any nucleus with a neutron/proton combination different from its stability ratio either too many neutrons or too many protons will become unstable.
Such nuclide will split into one or more other nuclei with the emission of small particles of matter and considerable amount of energy.

Learn more:

Radioactive brainly.com/question/10125168

#learnwithBrainly

7 0

2 years ago

When a substance is heated ,the kinetic energy of its molecules

Simora [160]

Answer:

When a substance is heated ,the kinetic energy of its molecules also increase.

Explanation:

K.E is directly proportional to T

5 0

2 years ago

How does carbon dioxide get into the atmosphere?

e-lub [12.9K]

Answer:

By condensation.

Explanation:

Have a nice day dear

3 0

2 years ago

Read 2 more answers

2C3H7OH + 9O2 --> 6CO2 + 8H2O

Ne4ueva [31]

<h3>Answer:</h3>

733 g CO₂

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

Reading a Periodic Table

<u>Stoichiometry</u>

Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Balanced] 2C₃H₇OH + 9O₂ → 6CO₂ + 8H₂O

[Given] 5.55 mol C₃H₇OH

<u>Step 2: Identify Conversions</u>

[RxN] 2 mol C₃H₇OH → 6 CO₂

Molar Mass of C - 12.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of CO₂ - 12.01 + 2(16.00) = 44.01 g/mol

<u>Step 3: Stoichiometry</u>

Set up conversion: $\displaystyle 5.55 \ mol \ C_3H_7OH(\frac{6 \ mol \ CO_2}{2 \ mol \ C_3H_7OH})(\frac{44.01 \ g \ CO_2}{1 \ mol \ CO_2})$
Multiply/Divide: $\displaystyle 732.767 \ g \ CO_2$

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

732.767 g CO₂ ≈ 733 g CO₂

8 0

3 years ago

Distinguish between zinc nitrate and lead nitrate

Kobotan [32]

Answer:

Zinc nitrate gives white ppt. which dissolves in excess ammonium hydroxide and produce a colorless solution whereas lead nitrate gives a chalky white ppt. of lead hydroxide which doesnot dissolve.

Explanation:

Hope this helps :)

7 0

3 years ago