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vladimir1956 [14]
3 years ago
9

______________________ produce evidence that helps to answer important questions or could also lead to new questions. A.investig

ations B. theories C.laws D. none of the above
Chemistry
2 answers:
V125BC [204]3 years ago
7 0

Answer: A. Investigation

Explanation:

siniylev [52]3 years ago
6 0

Answer:

B

Explanation:

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3 years ago
Fine-grainted igneous rocks form?
Harman [31]
In molten lava like all the rest.

Hope it helped!!!
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3 years ago
An ethylene gas torch requires 300 L of gas at 0.8 atm. What will be the pressure of the gas if ethylene is supplied by a 200.0
Vlad [161]

Answer:

1.2 atm

Explanation:

Given data

  • Volume of the gas in the tank (V₁): 200.0 L
  • Pressure of ethylene gas in the tank (P₁): ?
  • Volume of the gas in the torch (V₂): 300 L
  • Pressure of the gas in the torch (P₂): 0.8 atm

If we consider ethylene gas to be an ideal gas, we can find the pressure of ethylene gas in the tank using Boyle's law.

P_1 \times V_1 = P_2 \times V_2\\P_1 = \frac{P_2 \times V_2}{V_1} = \frac{0.8atm \times 300L}{200.0L} = 1.2 atm

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3 years ago
When a tip of a plant is cut it doesn't grow well​
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Explanation:

the tip of a growing plant contains special rapidly diving cells called apical meristem ,these cells are responsible for increase in the length of the plant . if we cut out these cells ,length growth of the plant will be stunned as these cells are not present anyplace else.

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