3 years ago

Can someone solve this plz βeta decay carbon atomic mass 14 atomic # 6

Chemistry

1 answer:

nordsb [41]3 years ago

8 0

Answer:

14/6C your welcome

Explanation:

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If an endothermic reaction begins at 26 degrees celsius and decreases by 2 degrees Celsius per minute, how long would it take to

Natalija [7]

Answer:

It would take 13 minutes.

Explanation:

The temperature decreases at a linear rate, meaning that we can describe the process by using the following formula:

T₂ = T₀ - 2*t

Where T₂ is the final temperature, T₀ is the initial temperature; and t is the elapsed time in minutes.

We input the data given by the problem:

0 °C = 26 °C - 2°C/min * t

And solve for t:

t = 13 min

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3 years ago

Classify lead: Select one: C = compound HE = heterogeneous mixture S = homogeneous mixture/solution E = element

Ira Lisetskai [31]

Lead is an E (element) and can be found on the periodic table.

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3 years ago

Cu(NO3)2 + Zn (s) → Cu (s) + Zn(NO3)2 is an example of which type of reaction?

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Single replacements since cu is being replaced by zn

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4 years ago

Lead has a density of 11.3 g/cm3 . what is the volume of a 15.1 g block of lead?

natita [175]

Hey there:

density = 11.3 g/cm³

mass = 15,1 g

Therefore:

D = m / V

11.3 = 15.1 / V

V = 15.1 / 11.3

V = 1.336 cm³

3 0

3 years ago

When the following equation is balanced, the coefficient of Al is ___ Al (s) + H20 (1) - Al(OH)3 (s) + H2 (g) A) 4 B) 1 C) 5 D)

Salsk061 [2.6K]

<u>Answer:</u> The correct answer is Option E.

<u>Explanation:</u>

Every balanced chemical equation follows law of conservation of mass.

This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total mass on the reactant side must be equal to the total mass on the product side.

The balanced chemical equation for the reaction of aluminium and water follows:

$2Al(s)+6H_2O(l)\rightarrow 2Al(OH)_3(s)+3H_2(g)$

The coefficient of Aluminium is 2.

Hence, the correct answer is Option E.

7 0

3 years ago