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iren2701 [21]
3 years ago
7

An atom has 1 proton, 2 neutrons, and 1 electrons. What is the atomic number of the atom?

Chemistry
1 answer:
RideAnS [48]3 years ago
8 0

Atomic number = No. of proton = 1

so, your answer is 1

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These cooked noodles were separated from the water they were cooked in. By which physical property were they separated? A. size
Papessa [141]

Answer:

B. Density

Explanation:

Density is the only property of liquid in the option that is feasible.

Water has no form of magnetism as it’s not a magnetic substance.

Water carries the size of the container it is put into and has no definite shape.

Water’s boiling point can only be gotten when it’s heated and it’s known to be mostly 100 degree celsius when pure and may be more or less depending on the level of impurities.

However Density is the mass per volume of water and can be calculated before the noodle is cooked which is more effective in its differentiation.

4 0
3 years ago
One of the of sulfur is represented as sulfur-35 or S- 35. What does the number 35 signify?
Jlenok [28]
35 is the mass number of this isotope of Sulphur. 
3 0
3 years ago
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7 0
3 years ago
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Sodium is produced by electrolysis of molten sodium chloride. what are the products at the anode and cathode, respectively?
Sholpan [36]
When sodium chloride is molten:
NaCl ------> Na⁺ +Cl⁻
Anod (+)                                           |             Cathode (-)
2Cl⁻-2e⁻ ---> Cl2(gas)                     |          Na⁺ + e⁻ -----> Na⁰(s)
4 0
3 years ago
How much heat, in kJ, is required to raise the temperature of 50 g of water by 5.53°C? (Round to the nearest 10 kJ, and enter on
Triss [41]

Answer:

Q=1.16kJ

Explanation:

Hello,

in this case, the required heat to increase the water by 5.53 °C is computed by using the mass, heat capacity and change in temperature during the process:

Q=mCp\Delta T

Thus, for the given data we compute it in kJ:

Q=50g*4.186\frac{J}{g*\°C}*(5.53\°C)*\frac{1kJ}{1000J} \\\\Q=1.16kJ

Best regards.

5 0
3 years ago
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