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Yanka [14]
3 years ago
10

How many significant figures are in 0.003450?

Chemistry
1 answer:
Olenka [21]3 years ago
7 0

Answer:

4

Explanation:

Four significant figures

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Complete the following table. Tell if the molecule is polar or nonpolar, draw the Lewis dot structure for the molecule, tell wha
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The complete table is shown in figure

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The shape of molecule is trigonal pyramidal while its electronic geometry is tetrahedral.

b) CO2: it is a non polar molecule with polar bonds. The molecule becomes non polar as the dipole moment cancel each other. [Dipole moment is a vector quantity]

The shape is linear.

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3 years ago
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When writing equations the mass on the left of the arrow must
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Answer:

When writing equation the mass on left side of equation must be equal to the mass on right side. True

Explanation:

The chemical reactions always follow the law of conservation of mass.

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

Explanation:

This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

For example:

In photosynthesis reaction:

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there are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass because total mass is equal on both side of equation.

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3 years ago
#3. How does a fever aid an immune response?
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it can tell and show what pathogen is in you as well what type and mutation so then your body can fight back and remember the genetic dna so then you will be immune in some way.

Explanation:

8 0
3 years ago
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Lewis Diagrams- Grade 10 Chemistry<br><br> Please can someone explain this to me?
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Lewis diagram:
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Answer:I believe its A. There noble gasses so there happy with there electron count!

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