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3 years ago

Elements found in the same periods of the modern periodic table are _____.

Chemistry

2 answers:

Dennis_Churaev [7]3 years ago

5 0

Try C I’m sorry if you get it wrong but I’m like 90% sure

juin [17]3 years ago

4 0

As far as I know, they are grouped according to increasing atomic number

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The mass of an average blueberry is 0.75 g and the of am automoblie is 2.0 x 10 to the 3 Kg. Find the number of automobiles whos

Paul [167]

Answer : The number of automobiles needed are, $2.26\times 10^{17}$

Explanation :

First we have to calculate the mass of blueberries.

As, 1.0 mole of blueberries contains $6.022\times 10^{23}$ blueberries

So, 0.75 grams of blueberries contains $0.75g\times 6.022\times 10^{23}=4.52\times 10^{23}g$ blueberries

Mass of blueberries = $4.52\times 10^{23}g$

Now we have to calculate the number of automobiles needed.

Number of automobiles needed = $\frac{4.52\times 10^{23}g}{2.0\times 10^{3}kg}$

Number of automobiles needed = $\frac{4.52\times 10^{23}g}{2.0\times 10^{3}\times 10^{3}g}$

Number of automobiles needed = $2.26\times 10^{17}$

Thus, the number of automobiles needed are, $2.26\times 10^{17}$

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3 years ago

HELP PLZZZZZZZZZZ! FILE ATTACHED BELOW! ASAP PLZ!

Ne4ueva [31]

I think it's C yea it's C

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3 years ago

Why do surfers put wax on their boards

poizon [28]

Answer:

to keep the surfer from slipping off the board

Explanation:

Surfboard wax (also known as surfwax) is a formulation of natural and/or synthetic wax for application to the deck of a surfboard, bodyboard, or skimboard, to keep the surfer from slipping off the board when paddling out or riding a wave. It is also used to increase grip on the paddle of a surf kayak or dragon boat.

5 0

3 years ago

Read 2 more answers

What is an electrolitic cell

stira [4]

A electrolytic* cell that electrolysis occurs

Ex. let say you wanted traces of graphene you would set up your usual electro-chemical exfoliation rig and the graphite you submerge would be your electrolytic cell.

Hopped this helped

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3 years ago

What may occur when the burning of fossil fuels releases gaseous nitrogen oxides and sulfur dioxide into the atmosphere

Bond [772]

Global warming can take place from all the gas bult up. the sunlight is fltered and made focused on some points on the earth. The Glaciers recieve more warmth since they are colder and are melted down.

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3 years ago