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aksik [14]
3 years ago
11

How many number of electron shells does calcium have ?

Physics
2 answers:
Furkat [3]3 years ago
8 0
20 electrons have calcium
Natalka [10]3 years ago
7 0
20 electrons and 2 valence electrons
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2<br> Ca<br> +<br> O<br> 2<br> →<br> 2<br> CaO<br> What is the product of the reaction
scoray [572]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

The product in a chemical reaction is written on the Right side of the arrow, so

the product formed here in given reaction is :

  • CaO (Calcium Oxide)
5 0
2 years ago
If the Sun and volcanoes were controlling the climate, the climate would
Harman [31]

Answer:

<em>Undergo global warming at a faster rate than what we are seeing currently</em>

Explanation:

Climate can be described as the average weather of a place. The climate of a particular place can be described after looking at the temperature of the place for a year or more.

If factors, such as the Sun and volcanoes controlled climates then there would be an increase in the temperature and more global warming. Volcanoes can be described as heat erupting from mountains which will, of course, lead to global warming.

4 0
3 years ago
A convex lens with a focal length of 10 cm is located 30 cm away from a
zloy xaker [14]

Answer: 15 cm

Explanation:

According to the Lens Equation we have the following:

\frac{1}{f}=\frac{1}{v}+\frac{1}{u} (1)

Where:

f=10 cm is the focal length

u=30 cm is the distance between the candle (the object) and the lens

v is the distance between the image and the lens

Isolating v:

v=\frac{uf}{u-f}} (2)

Solving:

v=\frac{(30 cm)(10 cm)}{30 cm-10 cm}} (3)

Finally:

v=15 cm This is where the image is located

8 0
3 years ago
Why does the number of dwarf planets recognized by astronomers in the solar system sometimes increase?
gregori [183]
Because sometimes it happens that they discover a dwarf planet
that nobody ever knew about before.  When that happens, they
ADD the new one to the list of known dwarf planets, and then the
total number of dwarf planets on the list increases by 1 .
4 0
3 years ago
The West the cost
poizon [28]

Answer:

Sck my p3nis

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if you do so, then your mom will have coronavirus.

4 0
3 years ago
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