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Vikentia [17]
2 years ago
6

An atom has 23 protons and 29 neutrons. Which is the correct chemical symbol for this atom?

Chemistry
2 answers:
Gnoma [55]2 years ago
5 0
The symbol for this element is <span>V </span>, which is the well-known element vanadium.
Alex787 [66]2 years ago
4 0

Answer:

Chemical symbol is 'V'

Explanation:

No. of protons = 23

No. of protons = Atomic number

So, the atomic number of the element = 23

Mass number = No. of protons + No. of neutrons

                        = 23 + 29

                        = 52

Elements with atomic number 23 and mass number 52 is vanadium.

Chemical symbol of vanadium is 'V'.

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Hypothesis and Observations
KATRIN_1 [288]

Answer:

his experiment can show the movement of pollutants through the groundwater!

Explanation:

8 0
1 year ago
When 200g of AgNO3 solution mixes with 150 g of NaI solution, 2.93 g of AgI precipitates, and the temperature of the solution ri
gizmo_the_mogwai [7]

Answer:

\Delta H=1962.3J

Explanation:

Hello,

In this case, we can compute the change in the solution enthalpy by using the following formula:

\Delta H=mC\Delta T

Whereas the mass of the solution is 350 g, the specific heat capacity is 4.184 J/g °C and the change in the temperature is 1.34 °C, therefore, we obtain:

\Delta H=350g*4.184\frac{J}{g\°C} *1.34\°C\\\\\Delta H=1962.3J

It is important to notice that the mass is just 350 g that is the reacting amount and by means of the law of the conservation of mass, the total mass will remain constant, for that reason we compute the change in the enthalpy as shown above, which is positive due to the temperature raise.

Best regards.

8 0
2 years ago
The sun shines with equal intensity on a farm field, an asphalt road, and the ocean. Which material will heat up most during the
Stolb23 [73]

Answer:

The sun shines with equal intensity on a farm field, an asphalt road and the ocean. So basically asphalt road are heated the most during the day

Explanation:

The heat of water is more than the specific heat of sand.

Therefore sand is hot.

.Water is reflecting solar radiation.  

The land retains more heat since the land absorb solar radiation.

Therefore the land surfaces warm faster.

Since water is a slow conductor of heat, it need more energy than the sand. so its temperature is increasing.  soil loses heat faster.  

The ocean heats slower than land , the land air is more warmer than lean air. After the sun set the land loses heat quickly .The air above it cools.

8 0
2 years ago
A compound composed of only c and f contains 17.39 c by mass. what is its empirical formula
Ostrovityanka [42]

Since the Carbon C is 17.39% by mass hence the Fluorine F is 82.61% by mass. Divide each mass % by the respective molar masses, that is:

 

C = 17.39 / 12 = 1.45

F = 82.61 / 19 = 4.35

 

Divide the two by the smaller number, so divide by 1.45

 

C = 1.45 / 1.45 = 1

F = 4.35 / 1.45 = 3

 

So the empirical formula is:

CF3 

4 0
2 years ago
To calculate the relative age of rocks, geologists use the rate of radioactive decay of isotopes present in their samples. What
GenaCL600 [577]
A

I have had this question!!
Hope this helps!!!
4 0
2 years ago
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