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ikadub [295]
3 years ago
6

Please help with correct answer for the one marked :)

Chemistry
1 answer:
ehidna [41]3 years ago
5 0

Answer:

Question 4 is not <em>cl</em><em>ear</em><em> </em><em>sorr</em><em>y</em><em> </em><em>y</em><em>ou</em><em> </em><em>m</em><em>ay</em><em> </em><em>se</em><em>nd</em><em> </em><em>ano</em><em>ther</em><em> </em><em>pi</em><em>cture</em><em> </em><em>pl</em><em>ease</em>

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(This question was deleted last month)
4vir4ik [10]

Answer: Fireworks exploding is a chemical change.

Explanation: Lighting gunpowder, and making the explosion is a chemical change.

6 0
2 years ago
Write a balanced nuclear equation for the β emission of the following isotopes
andrezito [222]

The balanced nuclear equation for the β emission of the following isotopes is seen below:

92                 92                0

Sr            ⇒ Y         +   e

38                  39             -1

<h3>What is Beta emission?</h3>

This is also known as beta decay in which a beta ray is emitted from an atomic nucleus.

The element formed during the beta emission of strontium is referred to as Yttrium.

Read more about Beta emission here brainly.com/question/16334873

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6 0
2 years ago
Why would fluorine, chlorine, and bromine be placed in the same group (the halogens) in the periodic table of elements? (1 point
inna [77]

D. They share chemical properties.

7 0
3 years ago
What concept explains why some objects heat up faster than others when exposed to the same heat source?
Brrunno [24]
C. Specific Heat is your answer
8 0
3 years ago
Which of the following is an anion?Al3+ Mg2+ O2– H Save
JulijaS [17]
An anion is an ion with a negative charge. The minus sign, when attached to the end of an ionic compound, indicates that this has a negative charge, while a plus sign indicates a positive charge. 

O2- is the only compound listed that satisfied this. It is the anion.
Answer is 02-
5 0
3 years ago
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