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cluponka [151]
3 years ago
6

What might a physicit choose to study?

Chemistry
1 answer:
AlekseyPX3 years ago
7 0
Thermodynamics, Nuclear Physics, Quantum Physics, Astronomy and Astrophysics
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3.2<br>Differentiate between a Merger and Alliance<br>(​
JulijaS [17]

EXPLANATION:

Alliance is an approach in which two or more companies agree to pool their resources together to form a combined force in the marketplace. Unlike a merger, an alliance does not involve the emergence of a new combined entity. ... The joint venture is a very popular form of an alliance.

5 0
2 years ago
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Write the formula for calcium chloride. Explain how you determined this formula
hichkok12 [17]

Calcium forms an ion with a positive 2 charge and chlorine forms an ion with a negative one charg, so the formula is <span>CaC<span>l2</span></span>

Group 1 metals and group 2 metals form positive ions by losing 1 and 2 electrons respectively. Non-metals in group 17 gain 1, group 16 gain 2 and group 15 gain 3. Elements which lose electrons form positive ions while elements that gain electrons form negative ions. 

To write a formula, you must balance charges so the overall charge is zero. A simple way to do this is to swap the # of the ion's charge and make it the subscript of the other ion. However, leave off the number 1 and reduce to lowest whole number ratio.

7 0
3 years ago
The specific heat of liquid water is 4.184 j/g· ?c. calculate the energy required to heat 10.0 g of water from 26.5?c to 83.7?c.
Roman55 [17]
Energy required=mass*specific heat*temperature change
=10*4.184*57.2
=2393.248j
=2.39*10^3
5 0
3 years ago
Which statement about carbon dioxide (CO2) is correct?
Zanzabum

Answer:

B

Explanation:

The carbon-oxygen double bond is polar.

However, carbon dioxide is a linear molecule. The two dipoles cancel out each other.

Thus, carbon dioxide is a non polar molecule with polar bond.

6 0
3 years ago
State Hess' law of constant heat summation.
AveGali [126]

Answer:

-74.6 kj/mol

Explanation:

you can see the answer at the pic

8 0
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