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konstantin123 [22]
3 years ago
9

17 p 18 n What is the atomic number of this element?

Chemistry
1 answer:
Verdich [7]3 years ago
6 0

Answer:

Chlorine

Explanation:

The P usually stands for Protons, and that is usually the element number. (chlorine is 17) N is for neutron

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I need help! FAST!!!​
aliina [53]

Answer:

The second answer choice

Explanation:

X seems to list attributes for opaque objects, and y lists attributes of Transparent objects.

5 0
3 years ago
5. The combustion of coal with oxygen forms CO2 and releases 94 kcal of energy.
Sonbull [250]
Ok buddy sorry buddy I just got
8 0
3 years ago
What is the name of the polyatomic ion with the molecular formula<br> SO32-
IceJOKER [234]

Answer:

sulfite ion SO32

Explanation:

A molecular ion is a covalently bonded set of two or more atoms, or of a metal complex, that can be considered to behave as a single unit and that has a net charge that is not zero.

8 0
2 years ago
Calculate the number of miles of NH4SO4 in 250 ml of a 1.5 M solution
ahrayia [7]
I’m guessing you mean moles. So the big M stands for mol/L. That means first you’d want to convert your mL to L. To do this write your 250mL then make parenthesis for the conversion. 1L=1000mL
250mL(1L/1000mL). Since the mL is on the bottom in the parenthesis we can cancel them out. Now all we do is divide and keep the L.
.250L is what you get. Now we need to figure out how to cancel the L with what we have left. We know M stands for Moles/L so this means in order to get ride of L we need to multiply our new number times the 1.5
.250L X 1.5 moles
_______

1L
This gives us 0.375 moles NH4SO4
3 0
3 years ago
List three examples of physical properties. (4 points)
hjlf
<span>Examples of physical properties are: color, smell, freezing point, boiling point, melting point, infra-red spectrum, attraction (paramagnetic) or repulsion (diamagnetic) to magnets, opacity, viscosity and density. There are many more examples.
HOPE THIS HELPS AND PLEASE MARK ME AS BRAINEST AND ADD ME AS FRIEND
</span>
5 0
3 years ago
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