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Ratling [72]
3 years ago
9

PLZ HELP What is an electron? O A.

Chemistry
1 answer:
Paha777 [63]3 years ago
5 0

Answer:

C

electrons are negatively charged particles

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Britta traveled 1250 km on her road trip and used 209 L of gasoline, filling her tank atan average of 1.14 euros per liter. Pier
icang [17]

Answer:

  • Britta paid more per kilometer driven

Explanation:

<u>1) Britta:</u>

  • Distance traveled: 1,250 Km
  • Gasoline used: 209 liter
  • Gasoline price: 1.23 euros / liter

Cost per km = total cost of gasoline / distance traveled

Cost per km = gasoline used × gasoline price / distance traveled

Cost per km = 209 liter × 1.14 (euro / liter) / 1,250 km =  0.19 euro / km

<u>2) Pierce:</u>

  • Distance traveled: 1,405 km
  • Gasoline used: 175 liter
  • Gasoline price = 1.23 euros / liter

Cost per km = 175 liter × 1.23 (euro / liter) / 1,405 km =  0.15 euro / km

<u>3) Comparison:</u>

  • 0.19 > 0.15 ⇒ Britta paid more per kilometer driven
4 0
4 years ago
What is the expected freezing point of a 0.50 m solution of li2so4 in water? Kf for water is 1.86 ∘c/m.
In-s [12.5K]

Answer: -2.79°C

Explanation:

Supposing complete ionization:

Li2SO4 → 2 Li{+} + SO4{2-}  [three ions]

(0.50 m Li2SO4) x 3 = 1.50 m ions  

(1.50 m) x (1.86 °C/m) = 2.79°C change

0°C - 2.79°C = -2.79°C

4 0
4 years ago
Read 2 more answers
What is the mass number of a fluorine atom with 8 neutrons?
Karolina [17]

Answer:

17

Explanation:

since the no. of protons=9

therefore mass no.= 9+8=17

8 0
3 years ago
How does sand becomes a form
Sonbull [250]
I think sand is just glass and other stuff
6 0
3 years ago
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What organ is known as the windpipe and the tube takes in air ?
maks197457 [2]

Answer:

The trachea, commonly known as the windpipe, is a tube about 4 inches long and less than an inch in diameter in most people. The trachea begins just under the larynx (voice box) and runs down behind the breastbone (sternum).

Explanation:

7 0
3 years ago
Read 2 more answers
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