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REY [17]
3 years ago
12

23. Select all accurate statements

Biology
1 answer:
lutik1710 [3]3 years ago
7 0

Answer:

E.All chordates have ventral l, hollow nerve cord

D.All chordates are bilaterally symmetrical animals

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It is released into the atmosphere and mixed in with carbon monoxide
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Use the drop-down menus to select the names of the labeled structures.<br> A: <br> B:
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B - the petal
A-stamen
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Your patient is a nose breather and her head is equal to 25% of her total body weight. what age group is she in?
ratelena [41]
The age group she does fit in is Infancy
7 0
3 years ago
HELP ASAP I WILL GIVE BRAINLIST
adelina 88 [10]

Answer:

1) CO₂

2) 0.2551 g

Explanation:

The balanced reactions are:

CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂

MgCO₃ + 2HCl → MgCl₂ + H₂O + CO₂

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
ipaliwanag ang Ang bawat indibidwal ay nararapat na mapaunlad patungo da kanyang kaganapanipaliwanag ang bawat indibidwal ay nar
OverLord2011 [107]

Answer:

Nabuo at nagbago.

Paliwanag:

Ang bawat indibidwal ay dapat na binuo at ang mga pagbabago ay nangyayari sa kanyang hugis at istraktura sa pagdaan ng oras. Sa katawan ng organismo, ang mga cell ay patuloy na nahahati na responsable para sa pagtaas ng laki ng isang indibidwal. Sa ilang mga punto ang laki ng hihinto at ang mga bahagi ng reproductive parehong lalaki at babae indibidwal ay matured at gumana sa buong kakayahan at gumagawa ng isa pang organismo dahil sa pagsasanib ng kanilang mga sex cell.

8 0
3 years ago
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