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Phantasy [73]
3 years ago
6

Why must chemical equations be balanced?

Chemistry
1 answer:
Elina [12.6K]3 years ago
5 0

Answer:

to validate the law of conservation of mass as total no. of reactants must be equal to the total no. of products

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PLS HELP ASAP NO LINKS PLS<br> How does hydroelectric power operate?<br> oil<br> water<br> coal
Ne4ueva [31]

Answer:

Water

Explanation:

Hydropower plants capture the energy of falling water to generate electricity. A turbine converts the kinetic energy of falling water into mechanical energy. Then a generator converts the mechanical energy from the turbine into electrical energy.

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3 years ago
What kinds of rocks would you expect to see on Mars? What evidence do you have
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like what are they made of? if so iron, due to iron oxide appearing as red hence why mars is red

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What is the formula for tricarbon heptafluoride?<br> C2F3<br> CF7<br> C3F7<br> C773
bagirrra123 [75]

Answer:

C3F7

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3 0
3 years ago
For the reaction co(g)+2h2(g)&lt;-&gt;ch3oh(g) at 700. k, equilibrium concentrations are [h2] = 0.072 m, [co] = 0.020 m, and [ch
SVETLANKA909090 [29]
The balanced equation for the reaction is
CO(g) + 2H₂(g) ⇄ CH₃<span>OH(g)

Since given concentrations are at equilibrium state, the expression for the equilibrium constant, k can be written as
   k = [</span>CH₃OH(g)] / [CO(g)] [H₂(g) ]²

By substitution,
   k = 0.030 M / 0.020 M x (<span>0.072 M</span>)²
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6 0
3 years ago
A eudiometer contains a 65.0 ml sample of a gas collected
SCORPION-xisa [38]

Answer:

53.1 mL

Explanation:

Let's assume an ideal gas, and at the Standard Temperature and Pressure are equal to 273 K and 101.325 kPa.

For the ideal gas law:

P1*V1/T1 = P2*V2/T2

Where P is the pressure, V is the volume, T is temperature, 1 is the initial state and 2 the final state.

At the eudiometer, there is a mixture between the gas and the water vapor, thus, the total pressure is the sum of the partial pressure of the components. The pressure of the gas is:

P1 = 92.5 - 2.8 = 89.7 kPa

T1 = 23°C + 273 = 296 K

89.7*65/296 = 101.325*V2/273

101.325V2 = 5377.45

V2 = 53.1 mL

6 0
3 years ago
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