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Shalnov [3]
3 years ago
10

Which Domains would you find single cell organisms

Chemistry
1 answer:
kogti [31]3 years ago
8 0
Archaea and Bacteria
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What mass of sodium hydroxide is needed to neutralise 24.5kg of sulfuric acid <br> H2SO4 + N2 = 2NH3
sveticcg [70]

Answer:

23.92 g

Explanation:

Molar mass of H2SO4 = (2×1)+32+(16×4)= 2+32+48= 82g/mol

H2SO4 + 2NaOH ---> Na2SO4 + 2H2O

I mole of H2SO4 = 2 moles of NaOH

24.5/82 = 24.5/82 × 2

= 0.598 moles of NaOH will neutralize

Mass= mole× molar mass

Molar mass of NaOH= 23+16+1 = 40g/mol

Mass= 0.598 × 40 = 23.92g of NaOH

7 0
3 years ago
How to know if a metal reacted with an acid
enot [183]

Answer: Hydrogen gas will be given off

Explanation:

Whenever a metal reacts with an acid, a salt of the metal is formed and hydrogen gas is given off.

For instance: The reaction of Zinc metal on Hydrochloric acid.

Zn(s) + 2HCl(aq) ---> ZnCl2(aq) + H2(g)

From the equation provided, hydrogen gas is given off as a by-product

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3 years ago
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Cause some ingredients might be expired and someone might get poisoned
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As the volume of confined gas decreases at the constant temperature, the pressure exerted by the gas________________.
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As the volume of the confined gas decreases at the constant temperature, the pressure exerted by the gas increases.
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Write the equation for the dissociation of hcl when hcl is dissolved in water.
kotykmax [81]

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HCl -> H+ + Cl- (monoprotic acid)

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