1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SIZIF [17.4K]
3 years ago
12

Whats the mass number of the atom when you add six protons and 6 electrons?

Chemistry
1 answer:
Verdich [7]3 years ago
6 0
It is6 because the only the proton number and the neutron number  affects the mass
You might be interested in
Now we need to find the amount of NF3 that can be formed by the complete reactions of each of the reactants. If all of the N2 wa
Alex777 [14]

The question is incomplete, the complete question is:

Nitrogen and fluorine react to form nitrogen fluoride according to the chemical equation:

N_2(g)+3F_2(g)\rightarrow 2NF_3(g)

A sample contains 19.3 g of N_2 is reacted with 19.3 g of F_2. Now we need to find the amount of NF_3 that can be formed by the complete reactions of each of the reactants.

If all of the N_2 was used up in the reaction, how many moles of NF_3 would be produced?

<u>Answer:</u> 1.378 moles of NF_3 are produced in the reaction.

<u>Explanation:</u>

The number of moles is defined as the ratio of the mass of a substance to its molar mass.

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}       ......(1)

Limiting reagent is defined as the reagent which is completely consumed in the reaction and limits the formation of the product.

Excess reagent is defined as the reagent which is left behind after the completion of the reaction.

In the given chemical reaction, N_2 is considered as a limiting reagent because it limits the formation of the product and it was completely consumed in the reaction.

We are given:

Mass of N_2 = 19.3 g

Molar mass of N_2 = 28.02 g/mol

Putting values in equation 1:

\text{Moles of }N_2=\frac{19.3g}{28.02g/mol}=0.689mol

For the given chemical reaction:

N_2(g)+3F_2(g)\rightarrow 2NF_3(g)

By the stoichiometry of the reaction:

1 mole of N_2 produces 2 moles of NF_3

So, 0.689 moles of N_2 will produce = \frac{2}{1}\times 0.689=1.378mol of NF_3

Hence, 1.378 moles of NF_3 are produced in the reaction.

8 0
3 years ago
In a chemical reaction, a certain compound changes intoanother compound at a rate proportional to the unchanged amount. ifinitia
Nadya [2.5K]

No it will be a 10% of that balance so take 16 * 10% and then take that answer and divide bye 70%

7 0
3 years ago
Does salt in water evaporate  faster than sugar in water
Natalka [10]
No it does noot evaporate faster than sugar in water
5 0
3 years ago
Read 2 more answers
a bar of gold is melted into liquid the liquid is then poured into a mold to make pieces of jewelry is the process a chemical ch
Leviafan [203]
Physical change because it's only changing the shape of the gold.
6 0
3 years ago
What’s a hinge,pivot,ball and socket called
irinina [24]
It is called diarthroses
6 0
3 years ago
Other questions:
  • Calculate the root mean square velocity of gaseous argon atoms at 26 ∘c.
    13·1 answer
  • Potassium hydroxide is used to precipitate each of the cations from their respective solution. determine the minimum concentrati
    15·1 answer
  • Which is the closest antonym for the word prone?​
    13·1 answer
  • Sodium burns in chlorine to form sodium chloride, NaCl. How many grams of sodium chloride will be formed when 1.8 g of sodium is
    12·1 answer
  • Moseley made revisions to the periodic table that resolved some of the problems with Mendeleev's version. Which of these was a r
    7·1 answer
  • Alkenes can be converted to alcohols by hydroboration‑oxidation. Draw the structure of the alcohol or alcohols formed in the rea
    13·1 answer
  • According to an energy pyramid model, which trophic level is expected have the largest biomass in land ecosystems ?
    9·1 answer
  • A sample of calcium oxide (CaO) has a mass of 2.80 g. The molar mass of CaO is 56.08 g/mol. How many moles of CaO does this samp
    11·2 answers
  • A student combines a solution of NaCl(aq) with a solution of AgNO3(aq), and a precipitate forms. Assume that 50.0mL of 1.0MNaCl(
    15·1 answer
  • Which formula is an ionic compound? N2, NaF, CO2, or NO2?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!