3 years ago

Again could someone help me on this?

Chemistry

1 answer:

Whitepunk [10]3 years ago

3 0

Answer:

Celsius, Fahrenheit and Kelvin are the three common temperature scales.

Explanation:

Celsius, Fahrenheit and Kelvin are the three common temperature scales.

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Vikentia [17]

Answer:

Explanation:

6 0

3 years ago

Why doesn't earth get hotter as it continues to receive radiation from the sun

Nataliya [291]

Because there is a balance between the amount of incoming radiation from the Sun and the amount of outgoing radiation from Earth.

hope this helps!

7 0

4 years ago

When tested a solution turns red litmus to blue this indicates that the solution contains more?

lbvjy [14]

When red litmus turns blue, means the solution is basic, so it has more OH⁻ (hydroxide) ions.

5 0

4 years ago

2Al(s)+Fe2O3(s) → Al2O(s)+2Fe(s) with a delta H=-847 KJ.

Scrat [10]

∆H for given reaction -847kJ

As it's negative reaction is exothermic

2 mol of Al releases 847KJ heat

4 mol Al releases

2(847)
1694KJ

∆H=-1694KJ

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2 years ago

A researcher is attempting to produce ethanol using an enzyme catalyzed batch reactor. The ethanol is produced from corn starch

Anastasy [175]

Answer:

The correct solution is "3.32 gm/L".

Explanation:

Given:

Rate constant,

$K = 0.05 \ hr^{-1}$

Time,

$t = 24 \ hours$

Concentration of ethanol,

$C_o= 1 \ mg/L$

Now,

The concentration of ethanol after 24 hours will be:

⇒ $C_o=C\times e^{-K\times t}$

By putting the values, we get

$1=C\times e^{-0.05\times 24}$

$1=C\times 0.30119$

$C= 3.32 \ gm/L$

4 0

3 years ago