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4 years ago

The number of protons in every atom of an element

2 answers:

8 0

It is 36
because the the atomic number is the number of protons is an atom of element. in an example, kryptons atomic number is 36. this tells us that an atom if krypton has 36 protons in its nucleus. the interesting thing here is that every atom of krypton contains 36 protons.

Margarita [4]4 years ago

6 0

Answer:

The *atomic* number

Explanation:

The atomic number is the number of protons in an atom of an element.

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The production of ammonia (NH3) under standard conditions at 25°C is represented by the following thermochemical equation. N2(g)

asambeis [7]

Answer:

44,901 kilo Joule heat is released when $1.663\times 10^4 g$ grams of ammonia is produced.

Explanation:

Moles of ammonia gas produced :

$\frac{1.663\times 10^4 g}{17 g/mol}=978.235 mol$

According to reaction, when 2 moles of ammonia are produced 9.18 kilo joules of energy is also released.

So, When 978.235 moles of ammonia gas is produced the energy released will be:

$\frac{-91.8 kJ}{2}\times 978.235 mol=-44,900.98 kJ\approx -44,901 kJ$

(negative sign indicates that energy is released as heat)

44,901 kilo Joule heat is released when $1.663\times 10^4 g$ grams of ammonia is produced.

7 0

3 years ago

Find the approximate atomic mass of a water molecule (h2o). give your answer in atomic mass units rounded to the nearest whole n

Blizzard [7]

First step is to get the mass of water molecule in grams:
From the periodic table:
molar mass of hydrogen is 1
molar mass of oxygen is 16

molar mass of a water molecule = 2(1) + 16 = 18 gm

Now, to convert the gm into amu, all you have to do is multiply the gm you got by Avogadro's number as follows:
mass of water molecule = 18 x 6.22 x 10^23 = 1.1196 x 10^25 amu which is approximately 1 x 10^25 amu

4 0

3 years ago

Read 2 more answers

What willl happen if we nuke the sun some how

iogann1982 [59]

Answer:

The sun'll likely absorb the radiation if it is close enough (Which it will never be)

Explanation:

4 0

3 years ago

Read 2 more answers

Given the following balanced equation, determine the rate of reaction with respect to [Cl2]. If the rate of Cl2 loss is 4.44 × 1

PolarNik [594]

Answer:

8.88 x 10⁻² M/s

Explanation:

The rate of reaction for:

NO(g) + Cl₂ (g) ⇒ 2NOCl(g)

is rate = -ΔNO/Δt = -ΔCl2/Δt = 1/2 ΔNOCl/Δt

so ΔNOCl/Δt = 2 ΔCl2/Δt = 2 x 4.44 × 10⁻² M/s = 8.88 x 10⁻² M/s

In general given a reaction

aA + bB ⇒ cC + dD

rate = -1/a ΔA/Δt = -1/b ΔB/Δt = 1/c ΔC/Δt = 1/d ΔD/Δt

8 0

3 years ago

1. A mineral that is essential for production of blood cells in bone marrow_________.

IgorC [24]

Answer:

Iron

Explanation:

The main role of iron in your body is to help your red blood cells function normally.

6 0

4 years ago