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Fofino [41]
3 years ago
6

How can atoms be neutral if they contain charged particles?

Chemistry
1 answer:
rewona [7]3 years ago
4 0
Stability of atoms is determined by neutron:proton ratio. This n/p ratio is 1:1 for elements below atomic number 20. Hope this helps.
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igomit [66]
Answer is: the specific heat capacity of the metal is <span>A) 0.129 J/gK.
</span>m(metal) = 15,1 g.
Q = 48,75 J.
ΔT = 25 K.
Q = C · ΔT · m(metal).
C = Q ÷ ΔT · m(metal).
C = 48,75 J ÷ 25 K · 15,1 g.
C = 0,129 J/g·K.
3 0
3 years ago
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Which of the following is NOT an example of a physical property?
olya-2409 [2.1K]

Answer:

The answer to your question is: B

Explanation:

Physical properties are properties that occurs in matter but there is not change in the composition.

A. Solid ice can be very brittle.   This is a physical property.

B. Water can form hydrogen and oxygen gas under electrolysis conditions.  Here there is a change in the composition of matter, this is an example of chemical property

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D. Liquid water can turn into steam in a heated tea kettle.  This is a physical property

E. none of the above This option is wrong because option B is correct.

8 0
3 years ago
When the following equation is balanced, what is the coefficient for CaCl2 ?
USPshnik [31]
To know if an equation is balanced you need to check and see how much of each molecule is on either side of the arrow. Right now you have 1-Ca, 2-H, 2-Cl on the left side of the arrow and 1-Ca, 2-Cl, and 2-H on the right side too. Because all the molecules are equal on both sides this means that the equation is balanced. So in front of the CaCl2 there is an assumed coefficient of 1. The answer is 1. 
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3 years ago
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