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kobusy [5.1K]
3 years ago
7

What does Ca stand for in chem?

Chemistry
2 answers:
abruzzese [7]3 years ago
7 0

Answer:

Calcium

Explanation:

Periodic table

shusha [124]3 years ago
5 0
Ca stands for the element Calcium in group 2A on the periodic table.
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What changes happens when you run ?
oksano4ka [1.4K]

Answer:

It increases endurance, builds muscle to maintain an optimal body fat composition, promotes cardiovascular health, strengthens the heart, and even improves your overall mood. Combined with weight training, running can help you maintain the perfect balance of mental stimulation and physical fitness.

Explanation:

4 0
3 years ago
An automobile tire at 30°C has a pressure of 3.00 atm. Temperature decreases to -5°C. Assume that there is no volume change in t
dmitriy555 [2]

Answer:

P₂ = 2.7 atm

Explanation:

Given data:

Initial temperature = 30°C

Initial pressure = 3.00 atm

Final temperature = -5°C

Final pressure = ?

Solution:

Initial temperature = 30°C = 30 + 273 = 303 K

Final temperature = -5°C = -5 + 273 = 268 K

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

3.0 atm / 303 K = P₂/268 K

P₂ = 3.0 atm × 268 K / 303 K

P₂ = 804 atm. K /293 K

P₂ = 2.7 atm

7 0
3 years ago
Atoms of one element easily changes to atoms of another element <br> a. True <br> b. False
Ganezh [65]
Hola!

→ Your query:
Atoms of one element easily changes to atoms of another element. Is it True? or False?

→ The answer is: TRUE

→ Reason :
We can change atom of one element to other atom by adding more particles into them. ex : Neutron, Protons and Electrons.

This is how nuclear fusion works. 

hope it helps!
6 0
3 years ago
Read 2 more answers
Read the list of elements given below. Be, Mg, Ca, Sr Which of the following about the elements is true? (5 points)
slava [35]

Answer:

Pretty Sure Its A

Explanation:

4 0
2 years ago
What is the temperature -39C expressed in kelvins?
Gre4nikov [31]

The Celsius temperature scale, also commonly referred to as the centigrade scale, is defined in terms of the kelvin. Specifically, degrees Celsius is equal to kelvins minus 273.15. The degree Celsius is the SI derived unit for temperature in the metric system.

4 0
3 years ago
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