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Tanzania [10]
3 years ago
8

TUESDAY:

Chemistry
2 answers:
puteri [66]3 years ago
7 0

Answer:

Protons=positive

Electrons=negative

Neutrons=Neutral

Explanation:

I am pretty sure this is what you are asking for if not just tell me

Rzqust [24]3 years ago
5 0
Protons are positive
Neutrons are neutral
Electrons are negatively charged
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The area surrounding the nucleus is called: protons electrons neutrons electron cloud
vesna_86 [32]

Answer:

eletrons

Explanation:

eletrons is not in the neuclus its around it

5 0
3 years ago
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A very hot cube of copper metal (32.5 g) is submerged into 105.3 g of water at 15.4 0C and it reach a thermal equilibrium of 17.
zysi [14]

Answer:

The initial temperature of the metal is 84.149 °C.

Explanation:

The heat lost by the metal will be equivalent to the heat gain by the water.  

- (msΔT)metal = (msΔT)water

-32.5 grams × 0.365 J/g°C × ΔT = 105.3 grams × 4.18 J/g °C × (17.3 -15.4)°C

-ΔT = 836.29/12.51 °C

-ΔT = 66.89 °C

-(T final - T initial) = 66.89 °C

T initial = 66.89 °C + T final

T initial = 66.89 °C + 17.3 °C

T initial = 84.149 °C.

7 0
2 years ago
Which one of the following electron transitions does not correspond to an absorbtion of a quanta of light?
ziro4ka [17]
N = 4 to n = 3 is the right answer, so it' none of the above
8 0
3 years ago
7.6 The diagrams show the atoms in four different substances. Each circle represents an atom.
Illusion [34]

Answer:

A and C represent elements while B and D represent Compounds

Explanation:

chemical elements cannot be broken down into simpler substances by any chemical reaction. While A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds

8 0
1 year ago
**Plz help with this asap who ever replies first with the right answer will get brainlists
Vesna [10]

Answer:first D. 88L

Second A 2*10^24

Explanation:

At stp 1 mole = 22.4L

mw Cl2= 70.9

280 g =280/70.9 moles, about 4

4*22.4 = about 88

aw Sr 87.6 —> 6.02214076*10^23 atoms = 1 mole

5 0
2 years ago
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