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pav-90 [236]
3 years ago
6

Hi I need help with these 3 questions asap please and thank you

Chemistry
1 answer:
inn [45]3 years ago
6 0
1 light changes speed as we approach source. 2 in a vacuum 3. In a vacuum
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Which one of the following statements is correct?
adell [148]

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Tissues form organs, and organs form systems. Hope this helped!

Explanation:

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Balance the equation NaHCO3(s)....<br> Please help!!<br> Question #1
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A container holds gallons of water . how many liters
Likurg_2 [28]

This is how you convert gallons to liters.

  1. Gallon is a volumetric unit.
  2. 1 gallon equals 3.785 liters
  3. So, you create this conversion factor: 1 gal = 3.785 liter ⇒ 1 = 3.785 liter / 1 gallon.
  4. Therefore, you can multiply any amount in gallons by the conversion factor and get the equivalent amoun in liters.
  5. Examples:
  • 1 gallon = 1 gallon × 3.785 liter / gallon = 3.785 liter
  • 3 gallon = 3 gallon × 3.785 liter / gallon = 11.355 liter
  • 15.25 gallon = 14.25 gallon × 3.785 liter / gallon = 53.936 liter

5 0
3 years ago
At 19 °C, the vapor pressure of pure ethanol is 40.0 mmHg.<br> What is the pressure in atm?<br> atm
m_a_m_a [10]

Answer:

0.05263158 atm

Explanation: mmHg to Atmosphere Conversion Example. Task: Convert 975 mmHg to atmospheres (show work) Formula: mmHg ÷ 760 = atm Calculations: 975 mmHg ÷ 760 = 1.28289474 atm Result: 975 mmHg is equal to 1.28289474 atm. This is an example for how i got the answer.

5 0
2 years ago
How does salt dissolve in water?
iogann1982 [59]
Water<span> can </span>dissolve salt<span> because the positive part of</span>water<span> molecules attracts the negative chloride ions and the negative part of </span>water<span> molecules attracts the positive sodium ions</span>
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