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Anon25 [30]
3 years ago
10

Which organisms are prokaryotes?

Biology
2 answers:
Rufina [12.5K]3 years ago
6 0
<span>Domains Bacteria and Archaea </span>
patriot [66]3 years ago
5 0

Answer:

All organism that have unicellular structure, lack nucleus & membrane bound organelle and have circular DNA are called as prokaryotic organism

Explanation:

All organism which possess the following characteristics are considered as prokaryotes –  

a) Unicellular/single celled

b) Lacks nucleus

c) Lacks organelles that have membrane

d) DNA is found in nucleoid

e) Chromosome occurs in a large single loop (also known as circular chromosome)

f) Also the cells of prokaryotic organism is the smallest of all.  

Some common examples of prokaryotes are – bacteria and archae

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1) CO₂

2) 0.2551 g

Explanation:

The balanced reactions are:

CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂

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1) The gas produced is CO₂.

2) Calculate mass of CaCO₃:

(0.5236 g) (0.4230) = 0.2215 g CaCO₃

Convert to moles:

(0.2215 g CaCO₃) (1 mol / 100.1 g) = 0.002213 mol CaCO₃

Find moles of CaCO₃:

(0.002213 mol CaCO₃) (1 mol CO₂ / mol CaCO₃) = 0.002213 mol CO₂

Convert to mass:

(0.002213 mol CO₂) (44.01 g / mol) = 0.09738 g CO₂

Calculate mass of MgCO₃:

(0.5236 g) (0.5770) = 0.3021 g MgCO₃

Convert to moles:

(0.3021 g MgCO₃) (1 mol / 84.31 g) = 0.003583 mol MgCO₃

Find moles of MgCO₃:

(0.003583 mol MgCO₃) (1 mol CO₂ / mol MgCO₃) = 0.003583 mol CO₂

Convert to mass:

(0.003583 mol CO₂) (44.01 g / mol) = 0.1577 g CO₂

Total mass of CO₂:

0.09738 g CO₂ + 0.1577 g CO₂ = 0.2551 g CO₂

8 0
3 years ago
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