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1 year ago

Balance the chemical equation by adding coefficients as needed. equation:

Chemistry

1 answer:

Rom4ik [11]1 year ago

7 0

Balance the chemical equation by adding coefficients as needed. equation:

4HCl + -1As2O3 + 4NaNo3 + -5H2O → 12No + -2H3AsO4 + 4NaCl

Chemical Equation

A chemical equation is a symbolic representation of a chemical reaction in the form of symbols and formulae, where the reactant entities are given on the left and the product entities are given on the right, with a plus sign separating the entities in both the reactants and the products and an arrow pointing in the direction of the products to indicate the reaction's direction. The absolute values of the stoichiometric numbers are shown as coefficients next to the symbols and formulas of the entities. Jean Beguin drew the first chemical equation in 1615.

To learn more about the chemical equation refer here:

brainly.com/question/22817140

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Methyl bromide (CH3Br) a. is extremely flammable b. is of greater concern from its oral toxicity than from its inhalation toxici

Mekhanik [1.2K]

Answer:

I believe it is C.

Explanation:

Hope my answer has helped you and if not i'm sorry.

4 0

3 years ago

Which is the net result of the proton-proton chain? 6 protons = 2 heliums + 3 positrons + 3 neutrinos + gamma rays 4 protons = 1

saveliy_v [14]

Answer: 5.125 neutrinos

Explanation:

8 0

3 years ago

PLEASE HELP ME!!!! WILL GIVE BRAINLIEST!!!!

vitfil [10]

Answer: 1. 3.23 m

2. 32.4

3. B adding solvent and C removing solute

Explanation:

1. Molality of a solution is defined as the number of moles of solute dissolved per kg of the solvent

$Molality=\frac{n}{W_s}$

where,

n = moles of solute

$W_s$ = weight of solvent

Now put all the given values in the formula of molality, we get

$Molality=\frac{43.6mol}{13.5kg}=3.23mol/kg$

2. Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

$Molarity=\frac{n}{V_s}$

where,

n = moles of solute

$V_s$ = volume of solution in L

$3.4=\frac{n}{9.54}$

$n=32.4$

Therefore, the moles of $Na_2CO_3$ is 32.4

3. Molarity can be decreased by decreasing the moles of solute and by increasing the volume of solution.

Thus adding solvent and removing solute will decrease the molarity.

4 0

3 years ago

as earth cooled and formed a planet, LESS dense elements and compounds separated and formed layers around a DENSE core. Is this

Svetach [21]

Answer:

True

Explanation:

The core of the earth is very dense so that leads me to beleive that the answer is true.

3 0

3 years ago

Using the equation PCl S(g) PCl 3(g) +Cl 2(g) , if PCl 3 is added, what way will the equilibrium shift?

DIA [1.3K]

Explanation:

Equation of reaction:

PCl₅ ⇆ PCl₃ + Cl₂

Problem: what direction will the reaction shift towards if PCl₃ is added;

Solution:

According to Le Chatelier's principle "if any conditions of a system in equilibrium is changed, the system will adjust itself in order to annul the effect of the change".

If the concentration of PCl₃ is increase, the equilibrium will shift towards the left because it is used up in that direction. More of the PCl₅ will be produced in order for the system to adjust back to equilibrium.

learn more:

Equilibrium brainly.com/question/11080417

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4 0

3 years ago