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Ne4ueva [31]
2 years ago
5

What are 6 things you would do to a new substance to determine if it was a metal? I need help!

Chemistry
2 answers:
NISA [10]2 years ago
6 0

Answer:

magnet is one

Explanation:

metals attach to magnets

horsena [70]2 years ago
4 0

Answer:

Explanation:

Check if they are ductile and malleable

If they are conductive

Metals produce hydrogen gas on reacting with acid

If they are sonorous

Or if you don’t have physical identity of them you can rather check it out in the periodic table.

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What happens to the atomic mass of an element moving from left to right within a period​
JulsSmile [24]

Answer:

As you move across a period, the atomic mass increases because the atomic number also increases. ... The atomic mass for any given atom mainly comes from the mass of the protons and neutrons.

Explanation:

4 0
3 years ago
Name two things in the lab that are for safety
Blizzard [7]

Answer:

Safety goggles and chemical fume hoods

Explanation:

5 0
2 years ago
The relative atomic mass of Chlorine is 35.45. Calculate the percentage abundance of the two isotopes of Chlorine, 35Cl and 37Cl
nata0808 [166]

Answer:

35Cl = 75.9 %

37Cl = 24.1 %

Explanation:

Step 1: Data given

The relative atomic mass of Chlorine = 35.45 amu

Mass of the isotopes:

35Cl = 34.96885269 amu

37Cl = 36.96590258 amu

Step 2: Calculate percentage abundance

35.45 = x*34.96885269 + y*36.96590258

x+y = 1  x = 1-y

35.45 = (1-y)*34.96885269 + y*36.96590258

35.45 = 34.96885269 - 34.96885269y +36.96590258y

0.48114731 = 1,99704989‬y

y = 0.241 = 24.1 %

35Cl = 34.96885269 amu = 75.9 %

37Cl = 36.96590258 amu = 24.1 %

3 0
2 years ago
Hydrides are compounds made up of hydrogen and metal. Why ammonia has the highest boiling point among the hydrides of elements i
RoseWind [281]
The correct option is D.
The hydrogen atoms that are attached to the nitrogen atom in the ammonia molecule are capable of forming hydrogen bond. The hydrogen bond that exist in the ammonia molecule is the reason why it shows higher boiling point compare to the other hydrides. Hydrogen bond occur in ammonia because ammonia is one of the most electronegative elements. 
3 0
3 years ago
I need help ASAP <br> Extra points &amp; brainlest:)
Oksana_A [137]

Answer:

it is c

Explanation:

3 0
2 years ago
Read 2 more answers
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