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wolverine [178]
2 years ago
5

Which physical property of matter do these four objects have in common?

Chemistry
1 answer:
aleksandrvk [35]2 years ago
4 0

Answer:

A- Non-magnetic

Explanation:

Brass, rubber, plastic, and glass will not be attracted by a magnet.

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Whether or not the process is observed in nature, which of the following could account for the transformation of gallium-67 to z
Sonja [21]

Answer:

Option a: positron emission.

Explanation:

In the transformation we have:

⁶⁷Ga  →  ⁶⁷Zn  

The reaction is:

^{67}_{Z}X \rightarrow ^{67}_{Z -1}Y

For Ga to become Zn, the atom nucleus has to lose a proton, so in the given options, the reaction that involves the transformation of a proton is the option a, positron emission.

In a positron emission, a proton becomes into a neutron and a positron:

^{A}_{Z}X \rightarrow ^{A}_{Z-1}Y + ^{0}_{+1}e

Therefore, the correct answer is option a: positron emission.

I hope it helps you!

7 0
2 years ago
Jeff used an equal arm balance to weigh a 4.312 g sample of sodium chloride. Which of these measurements made by Jeff is the mos
Virty [35]

Answer:

4.3.

Explanation:

  • Measurements that are close to the known value are said to be accurate, whereas measurements that are close to each other are said to be precise.
  • The most closest measurement to the known value is 4.3 g.
  • So, the right choice is: 4.3 g.
3 0
3 years ago
Read 2 more answers
What is the ph for hcl and ch3cooh?
Maurinko [17]
HCL - 3.01
CH3COOH -2.4
5 0
3 years ago
Which of the following is not an example of a subatomic particle? electron photon neutron proton
asambeis [7]
I'm pretty sure all 4 are subatomic particles but if i had to guess i'd be Photons
5 0
3 years ago
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1. A recipe for s'mores calls for 2 graham crackers, 2 chocolate pieces and 1 marshmallow. If I
Dominik [7]

Answer:

1.  7 ,   2.  0 crackers, 6 choc pieces and 1 marshmallow

Explanatio

8 0
1 year ago
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