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Troyanec [42]
3 years ago
6

PLEASE HELP!!!!

Chemistry
1 answer:
coldgirl [10]3 years ago
7 0

Answer:

1.2 liters.

Explanation:

Focus on the 4th digit: that's the ones column. The 3rd digit is the decimal place, just be sure to round up.

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Pavel [41]

Answer: E. \text{CH}_{4}+2\text{O}_{2} \longrightarrow \text{CO}_{2}+2\text{H}_{2}\text{O}

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Choose the thermochemical equation that best illustrates ΔH°f (enthalpy of formations) for Li2SO4. A) 2 Li+(aq) + SO42-(aq) → Li
klasskru [66]

Answer:

(c) Li2SO4(aq) → 2Li+(aq) + SO4 2-(aq)

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When Mendel crossed a plant with green peas and a plant with yellow peas, what color peas did the offspring have?
Alexxandr [17]

Answer:

B. All offspring had yellow  peas.

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7 0
3 years ago
If 9.5 atms of pressure were increased to 25 atms of pressure, what would be the final volume
nordsb [41]

Answer:

The final volume of the gas is 36.1 L.

Explanation:

Given:

Initial pressure of the gas is, P_1=9.5\ atm

Final pressure of the gas is, P_2=25\ atm

Initial volume of the gas is, V_1=95\ L

Final volume of the gas is, V_2=?

Here, we shall use Boyle's Law which states that for a process under constant temperature, the pressure of the gas changes inversely with the change in volume.

Here, the pressure is increased. So, the volume of the gas is decreased.

Therefore, as per Boyle's Law:

P_1V_1=P_2V_2\\9.5\times 95=25V_2\\902.5=25V_2\\V_2=\frac{902.5}{25}\\V_2=36.1\ L

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A compound is composed of 58% copper, 12.79% nitrogen, and 29.21% oxygen. What is the empirical formula of the compound?
padilas [110]

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C47N9O18 is the empirical formula of this compound.

Explanation:

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