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2 years ago

11

Write a CER to explain what happened to this styrofoam head. The pics are of the head above water, at a depth of 1000m underwate

r, and at 3000 m underwater. Talk about the gas laws and/or KMT in your reasoning section!

1 answer:

statuscvo [17]2 years ago

4 0

Answer:

what is that i connot understand your question

Explanation:

im sorry i connot answer your question

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Snezhnost [94]

Answer:

elements are composed of

electrons with a little mass and negative charge

protons with mass and positive charge

neutrons with mass and no charge

isotopes same number of protons, different in neutrons

share me the other part of the photo to complete!!!

7 0

2 years ago

3g of clean mg ribbon and 8g of clean copper metal was burnt separately in equal volume of air and both mass reacted completely

dsp73

Answer:

gshshs

Explanation:

bshsjskskehhshs

5 0

2 years ago

11. What is the mass number

solniwko [45]

Answer:The mass numbr is 22

Explanation:

Mass number=number of protons+ number of neutrons....which is 10+12=22

4 0

2 years ago

What are the chemical properties of CO2<br>

Irina-Kira [14]

Answer:

Carbon dioxide is a linear covalent molecule.

Carbon dioxide is an acidic oxide and reacts with water to give carbonic acid.

CO 2 + H2O ==> H2CO3

Carbon dioxide reacts with alkalis to give carbonates and bicarbonates.

CO 2 + NaOH ==> NaHCO3 (Sodium BiCarbonate )

NaHCO3 + NaOH ==> Na2CO3 (Sodium Carbonate) + H2O

7 0

2 years ago

What is the density of a sample of the alloy pewter, (a mixture of tin and copper or lead) if a 7.11 cm3 sample has a mass of 53

xxTIMURxx [149]

Answer:

<h3>The answer is 7.47 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass = 53.137 g

volume = 7.11 cm³

We have

$density = \frac{53.137}{7.11} \\ = 7.473558368...$

We have the final answer as

<h3>7.47 g/cm³</h3>

Hope this helps you

5 0

3 years ago