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nikklg [1K]
3 years ago
15

What is composed of more than 200 billion stars including the sun

Chemistry
2 answers:
Soloha48 [4]3 years ago
7 0
The solar system consist of stars and sun
Damm [24]3 years ago
4 0
The galaxy, not solar system. A solar system is a system around a singular star or central point, while a galaxy is a collection of solar systems and orbital structures.
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The nucleus of an atom has what electric charge?​
omeli [17]

Answer: Positive charge

Explanation:

An atom consists of electron (negatively charged), Proton (Positively charged) and neutron (no charge).

The proton (+) and the neutron (no charge) are in the nucleus of the atom. this makes the resulting charge of the nucleus positive while electron (-) is outside the nucleus.  

5 0
4 years ago
Choose the coefficient for blank 1 (in front of C)
nordsb [41]

Answer:

;l ok

Explanation:

6 0
3 years ago
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Question 2 A sample of sodium chloride (NaCl) has a mass of 16.55 g.
Sliva [168]

Explanation:

that was awesome thanks for this lovley question

8 0
4 years ago
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What is the specific heat capacity of silver metal if 75.00 g of the metal absorbs 56.4J of heat and the temperature rises 35.0°
Eva8 [605]

Answer:

The specific heat capacity of silver metal is 0.021485 J/g°C.

Explanation:

The specific heat capacity of silver metal can be found out by using the formula,

Q = (mass) (ΔT) (Cp)

Given,

mass = 75 grams

Q = 56.4 j

ΔT = 35°C

Substituting values,

56.4 = (75)(35)(Cp)

Cp = 0.021485 J/g°C.

8 0
4 years ago
What is amu of 99 % H-1, .2% H-1 and .8% H-3
ankoles [38]

The average atomic mass of your mixture is 1.03 u .

The average atomic mass of H is the weighted average of the atomic masses of its isotopes.  

We multiply the atomic mass of each isotope by a number representing its relative importance (i.e., its % abundance).  

Thus,  

0.99    × 1.01 u = 0.998 u

0.002 × 2.01 u = 0.004 u

0.008 × 3.02 u = <u>0.024 u</u>

            TOTAL =  1.03   u

4 0
3 years ago
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