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Iteru [2.4K]
3 years ago
8

Please helpppp !

Biology
1 answer:
Virty [35]3 years ago
8 0

i think the answer is a

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What type of wave is light? And does it need a medium to travel through?
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Answer: light is a eletromagnetic wave, no it does not need a medium

Explanation:

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The VPL thalamic nucleus sends information to S1 in our body's touch pathway.
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Answer: True

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The VPL stands for the ventral posterolateral nucleus, the thalamic nucleus received the information from lemniscus and it displayed its sensory information into the primary cortex in the brain. In the pathway the trigeminal lemniscus conveyed the vibration and the sense of the touch in the nucleus of thalamic where, it send the data or information in the body.

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Glucose is an example of a ______ sugar.
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Lactose because it is a sugar made up of galactose and glucose.
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Which of the following changes in deciduous forests occurs in the spring?
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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
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