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Sav [38]
3 years ago
13

Two balls are placed near one another and hang down, as

Chemistry
1 answer:
Makovka662 [10]3 years ago
6 0

Answer:

A

Explanation:

If B) - the balls would be moved apart

If C) - the balls would be moved close to each other.

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How many significant figures are in 0.0233?
viva [34]

Answer:

there are 3 significant figures

Explanation:

do not count the first 2 zeros. only the nimbers after the zero

7 0
3 years ago
P 4 + 5O 2 P 4 O 10 , 1.5 moles of product was made in 30 seconds. What is the rate of reaction? 0.011 g/min 210 g/min 380 g/min
Airida [17]

Answer: 850.0 g/min.

Explanation:

  • The rate of the reaction = (ΔC/Δt) where,

ΔC is the change in concentration of reactants or products.

Δt is the change in time of the reaction proceeding.

  • The rate is needed to be calculated in (g/min).
  • We need to calculate the amount of the product in (g) via using the relation (n = mass / molar mass).
  • mass (g) = n x molar mass,
  • n = 1.5 moles and molar mass of P₄O₁₀ = 283.88 g/mol.
  • m = 1.5 x 283.88 = 425.82 g.
  • ΔC = 425.82 g and Δt = 30 s / 60 = 0.5 min.
  • The rate of the reaction = ΔC / Δt = (425.82 g / 0.5 min) = 851.64 g/min.

<em>can be approximated to 850.0 g/min.</em>

6 0
3 years ago
Read 2 more answers
Which compound is a saturated hydrocarbon?<br> A) 2-pentanone B) 2-pentene C) pentane D) pentanal
lesya692 [45]
The answer is the first one because it’s a compound of two words separate when you say it :) hope this helps !
7 0
2 years ago
Hydrogen gas can combine with oxygen gas under certain conditions to form water.
stellarik [79]

Answer:

The correct answer is product.

Explanation:

Hydrogen gas reacts with oxygen gas to generate water molecule.

   2H2+O2 = 2H2O

We all know that that substances which are present at the left hand side of the equilibrium sign act as substrate and the substances those are present in the right hand side of the equilibrium sign are called products.

  From that point of view it can be stated that water or H2O is the product of the reaction between hydrogen and oxygen.

5 0
3 years ago
Write the balanced chemical reaction for the following nitrogen cycle reactions. These reactions are mediated by bacteria and pl
Leto [7]

Answer:

Nitrification is a biological process by which ammonia is oxidized to nitrites (NO_{2} ^{-}) and then to nitrates (NO_{3} ^{-}) by action of specialized bacteria in nature (such as <em>nitrosomonas</em> and <em>nitrobacter</em>).

Explanation:

This two-step process utilizes molecular atmospheric oxygen and ammonia and ammonium components of soil and nature.

<em>(a.) Ammonia and ammonium compounds to nitrite</em>

NH_{4} ^{+} + O_{2} → NO_{2} ^{-} + 4H^{+}

2NH_{3} ^{+} + 3O_{2} → 2NO_{2} ^{-} + 2H^{+} + 2H_{2} O

<em>(b.) Nitrite to nitrate</em>

2NO_{2} ^{-} + O_{2} → 2NO_{3} ^{-} + energy

<em>(c.) The reverse process involves reduction of nitrates to molecular nitrogen, called denitrification (with succinic acid in the equation below).</em>

4NO_{3} ^{-} + 10H^{+} + (CH_{2})_{2}(COOH)_{2} → 2N_{2} +4CO_{2}  + 8 H_{2} O

(NO and N_{2}O is an intermediate product in this process.)

4 0
3 years ago
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