Answer:
<u><em>i hope it work</em></u>
Explanation:
as
accurate reading range = reading ± uncertainty
so you have to say about accurate reading that its,lies in range
=(6389-436) →(6389+436)
=5953→6825
and the correct number of significant would be 3
Answer:
- <u>7.04 × 10²⁴ molecules of Na₂O</u>
Explanation:
<u>1) Balanced chemical equation (given):</u>
- 4 Na(s) + O₂ (g) → 2Na₂O (s)
<u>2) Mole ratio:</u>
<u>3) Number of moles of O₂ in 187 grams of oxygen:</u>
- Molar mass O₂ = 32.00 g/mol
- Number of moles = mass in grams / molar mass = 187 g / 32.00 g/mol = 5.844 mol
<u />
<u>4) Number of moles of Na₂O:</u>
- Proportion: 1 mol O₂ / 2 mol Na₂O = 5.844 mol O₂ / x
- x = 5.844 mol O₂ (2 mol Na₂O / 1 mol O₂) = 11.688 mol Na₂O
<u />
<u>5) Number of molecules</u>
- Number of molecules = number of moles × Avogadro's number
- Number of molecules = 11.688 mol × 6.022 × 10²³ molecules/mol =
= 7.04 × 10 ²⁴ molecules ← answer
The answer is rounded to three significant figures.
Answer:
ㅤㅤCellular respiration is a metabolic pathway that breaks down glucose and produces ATP. ... respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle ... glucose and are shuttled to the electron transport chain by electron carriers ... into a two-carbon molecule bound to Coenzyme A, known as acetyl CoA.
ㅤㅤㅤㅤㅤㅤㅤ
Explanation:
The answer would be hypotheis since its an theory that isnt proven yet which would involve a scientist to expertiment to make the hypothesis true or valid
