3 years ago

What do the suffix in a polyatomic ion mean

1 answer:

5 0

Answer: The suffixes of the names of polyatomic ions have a pattern associated with them. ... For example, the sulfite ion has three oxygen atoms whereas the sulfate ion has four oxygen atoms.

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A number of valence electrons can be determined by looking at the... *

inessss [21]

Answer:

The main group number for an element can be found from its column on the periodic table.

Explanation:

For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.

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3 years ago

Burning fossil fuels is like letting go of a slingshot because both change potential energy into ___ energy.

Yuliya22 [10]

The answer is Mechanical energy

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3 years ago

What are examples of evaporation?

jekas [21]

Answer:

Boiling water

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The water evaporates from the pot

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C. A paramecium is a single-celled organism that lives in ponds. It travels at a rate of 2,000 micrometers per second. What is t

ruslelena [56]

Answer:

7.2 meters per hour

Explanation:

It is given that,

The speed of a paramecium is 2,000 micrometers per second.

We need to find the speed of the paramecium in meters per hour.

We know that,

$1\ \mu m=10^{-6}\ m$

and

1 hour = 3600 seconds

$v=2000\ \dfrac{\mu m}{s}\\\\=2000\times \dfrac{10^{-6}\ m}{(\dfrac{1}{3600})\ s}\\\\=7.2\ \text{meters/hour}$

Hence, the speed of the paramecium is 7.2 meters per hour.

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3 years ago

Please number 12 and 13

nika2105 [10]

12.) 15 : 10 Times Each One By 0.3

15*0.3= 4.5
15-4.5 = 10.5

10*0.3= 3
10-3=7

The Scale Factor Is 10.5:7

6 0

3 years ago