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devlian [24]
2 years ago
11

Identify the importance of water. check all that apply

Chemistry
1 answer:
Lunna [17]2 years ago
4 0

Answer

a c e f

Explanation:

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La precipitación ácida es un agente de?
serg [7]

Answer:

acid precipitation is an agent of

Explanation:

4 0
3 years ago
55 L of a gas at 25oC has its temperature increased to 35oC. What is its new volume?
ladessa [460]

Answer:

Approximately 56.8 liters.

Assumption: this gas is an ideal gas, and this change in temperature is an isobaric process.

Explanation:

Assume that the gas here acts like an ideal gas. Assume that this process is isobaric (in other words, pressure on the gas stays the same.) By Charles's Law, the volume of an ideal gas is proportional to its absolute temperature when its pressure is constant. In other words

\displaystyle V_2 = V_1\cdot \frac{T_2}{T_1},

where

  • V_2 is the final volume,
  • V_1 is the initial volume,
  • T_2 is the final temperature in degrees Kelvins.
  • T_1 is the initial temperature in degrees Kelvins.

Convert the temperatures to degrees Kelvins:

T_1 = \rm 25^{\circ}C = (25 + 273.15)\; K = 298.15\; K.

T_2 = \rm 35^{\circ}C = (35 + 273.15)\; K = 308.15\; K.

Apply Charles's Law to find the new volume of this gas:

\displaystyle V_2 = V_1\cdot \frac{T_2}{T_1} = \rm 55\;L \times \frac{308.15\; K}{298.15\; K} = 56.8\; L.

8 0
3 years ago
Which elements did the Curies discover?
Scilla [17]

Answer:

B on edge

Explanation:

6 0
3 years ago
Is carbon dioxide a polar molecule? Why or Why Not?
irinina [24]

Explanation:

Carbon dioxide isn't a polar molecule because

same nature of charge appears in opposite direction which cancel each other. So, carbon dioxide is non-polar molecule.

6 0
3 years ago
How many grams of sodium chloride are present in a 0.75 M solution woth volume of 500.0 milliliters?
Aneli [31]
V = 500ml = 0,5 l
c = 0,75 M

c = n/V
n = c × V
n = 0,75 × 0,5 = 0,375[mol]

M NaCl = 58,5 g/mol

1 mol ------- 58,5 g
0,375 mol ----- x g

x = 0,375 mol × 58,5 g / 1 mol = 21,94 g

Answer: In this solution there are 21,94 g of sodium chloride.

:-) ;-)

8 0
3 years ago
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