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3 years ago

50 POINTS!!!!!

1 answer:

8 0

Answer: A chemical equation can be defined as balanced chemical equation if the number of atoms and the total charge is same on both sides of the reaction i.e reactants and products have same number of atoms.

Whereas, imbalanced reaction does not have same number of atoms and charge on reactants and products.

A. 2CO + 2NO → 2CO2 + N2

is a balanced equation as the number of carbon, oxygen, and nitrogen atoms are same on both sides.

B. 6CO2 + 6H2O → C6H12O6 + O2

is an imbalanced equation as oxygen atoms are not balanced here.

C. H2CO3 → H2O + CO2 is a balanced equation as same number of hydrogen, carbon, and oxygen are present on both sides.

D. 2Cu + O2 → CuO is an imbalanced equation as both copper and oxygen are imbalanced here.

!!HOPE THIS HELPED!!

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If its 8am in eastern time zone, what time is it in the pacific time zone

IrinaK [193]

Its 5am pacific time if its 8 eastern

5 0

3 years ago

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When a solution containing 1.4000 g of Ba(NO3)2 and 2.4000 g of HSO3NH2 is boiled, a precipitate forms. One possible identity fo

Marta_Voda [28]

Answer:

See explanation for detailed solution

Explanation:

The balanced reaction equation is Ba(NO3)2 + 2HSO3NH2 → Ba(SO3NH2)2 + 2HNO3

Number of moles of Ba(NO3)2 = 1.4 g/ 261.337 g/mol = 5.36 × 10^-3 moles

From the reaction equation;

1 mole of Ba(NO3)2 yields 1 mole of Ba(SO3NH2)2

5.36 × 10^-3 moles of Ba(NO3)2 yields 5.36 × 10^-3 moles of Ba(SO3NH2)2

For HSO3NH2

Number of moles = 2.4g/97.10 g/mol =0.0247 moles

2 moles of HSO3NH2 yields 1 mole of Ba(SO3NH2)2

0.0247 moles of HSO3NH2 yields 0.0247 ×1/2 = 0.0137 moles

Hence, Ba(NO3)2 is the limiting reactant

The theoretical yield of Ba(SO3NH2)2 is 5.36 × 10^-3 moles × 329.4986 g/mol = 1.766 g

Number of moles = mass/ molar mass

Molar mass = mass/ number of moles

Molar mass = 1.6925 g/5.36 × 10^-3 moles = 315.76 g

7 0

3 years ago

Which is most likely to dissolve fastest in water? A. sugar cube B. powdered sugar

leva [86]

Sugar cube is my answer

Hope this helps!
Let me know if i'm wrong.

7 0

3 years ago

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The brain tells his stomach intestines and liver want to be active and want to rest. Messages to and from the brain decide when

Nana76 [90]

Answer:

Nervous System I believe

Explanation:

5 0

3 years ago

fish tank initially contains 35 liters of pure water. Brine of constant, but unknown, concentration of salt is flowing in at 5 l

weeeeeb [17]

Answer:

Therefore, the rate of change in the amount of salt is $\frac{dx}{dt} =( 5c}{ - \frac{x }{20})$

$\frac{grams }{min}$

Explanation:

Given:

Initial volume of water $V = 35$ lit

Flowing rate = 5 $\frac{Lit}{min}$

The rate of change in the amount of salt is given by,

$\frac{dx}{dt} =$ ( Rate of salt enters tank - rate of sat leaves tank )

Since tank is initially filled with water so we write that,

$x(0) = 0$

Let amount of salt in the solution is $c$ ,

$\frac{dx}{dt} = \frac{5c}{1 } - \frac{x(t) \times 5}{100}$

$\frac{dx}{dt} =( 5c}{ - \frac{x }{20})$ $\frac{grams}{min}$

Therefore, the rate of change in the amount of salt is $\frac{dx}{dt} =( 5c}{ - \frac{x }{20})$

$\frac{grams }{min}$

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3 years ago