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IgorC [24]
2 years ago
12

the mass of chemical a is 2g and the mass of chemical b is 5g. if the two chemical are mixed and a chemical reaction takes place

. what is the mass of the product?
Chemistry
1 answer:
OverLord2011 [107]2 years ago
5 0

Answer:

the answer is 7g

Explanation:

I'm not really sure about the answer but the way i did it is i added 2+5g

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4. Solve the following heat flow problem, being sure to show all your work (you may either type your
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Answer:

0.70 J/g.°C

Explanation:

Step 1: Given data

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Step 2: Calculate the specific heat of graphite

We will use the following expression.

Q = c × m × ΔT

c = Q / m × ΔT

c = 1136 J / 402 g × (30°C - 26°C)

c = 0.70 J/g.°C

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3 years ago
Hexane is a chain organic compound that has the formula C6H14. What type of organic compound is hexane?
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Answer:

2-Methylpentane is a branched-chain alkane with the molecular formula C6H14. It is a structural isomer of hexane composed of a methyl group bonded to the second carbon atom in a pentane chain.

5 0
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1. write the complete chemical symbol for the ion with 14 protons 15 neutrons and 18 electrons
motikmotik

Answer:

1.   Si^{-4}

2.  Co^{+2}

Explanation:

An ion is formed when an atom that is said to be neutral gains or losses electrons.

It is thought that a negative ion (anion) is produced as it gains electrons and a positive ion (cation) is formed when it loses an electron.

Atomic number is the total number of protons and electrons in a neutral atom.

From the information

Protons = 14

electron = 18

Net Charge = no of proton - no of electron

= 14 - 18 = -4

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Thus, the chemical symbol = Si^{-4}

For ion with 27 proton, 32 neutrons and 25 electrons

Net charge = 27 - 25 = +2

Mass number = 27 + 32 = 59

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