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Firdavs [7]
3 years ago
7

Why did u like brainly.com pls answer honestly

Chemistry
1 answer:
joja [24]3 years ago
6 0

Answer:

I like brainly because it helps me with some answers to the questions i dont understand and ive made some friends on here its pretty fun:)

Explanation:

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A gas has a volume of 62.65 L at STP. At what temperature (in oC) would the volume of the gas be 78.31 L at a pressure of 612.0
masha68 [24]

Answer:

1.788 C DEGREES

Explanation:

STP is 1 atm at  273.15 K

P1V1/T1  = P2V2/T2

(1)(62.65) / (273.15) = (612/760)(78.31)/T2

T2 = 274.93 K     = 1.788 C

5 0
2 years ago
What is the volume (in liters) of a 5.52 gram sample of O2 at STP?
OverLord2011 [107]

Answer:

1

Recall that at STP, 1 mole of any ideal gas occupies 22.4 liters. Volume O2 gas = 0.0510 moles O2 x 22.4 L/mole = 1.14 liters (3 sig.

Explanation:

hope this helps

4 0
2 years ago
List 5 of the signs that can identify the evidence of a chemical change.<br>​
trapecia [35]

Answer:

here are some ideas <3

Explanation:

burning of paper.

cooking of food

burning of wood

rotting of fruits.

frying egg

rusting of iron

mixing acid and base.

burning of candle

leaves changing color

melting of sugar.

baking

explosion of fireworks.      

souring milk

digestion of food

fermentation

lighting matchstick

photosynthesis

decomposition of waste

8 0
3 years ago
3
atroni [7]

Answer:

(1) atomic numbers

Explanation:

The observed regularities in the properties of the elements on the periodic table are periodic functions of their atomic numbers.

  • Atomic number is the number of protons in an atom.
  • The periodic law states that "the properties of elements are a periodic function of their atomic number".
  • Elements on the periodic table are arranged based on the atomic numbers they contain.
  • The number of positively charged particles in an atom is the atomic number.
6 0
3 years ago
Which of the following is a problem caused by acid rain?
marissa [1.9K]

Answer:

1

Explanation:

is a factor in global warming

3 0
3 years ago
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