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ankoles [38]
3 years ago
9

Elena makes the table below to determine the number of atoms of each element in the chemical formula 3(NH4)2SO4

Chemistry
2 answers:
Vikentia [17]3 years ago
6 0

Answer:

A) She should not have multiplied the sulfur atoms by the subscript 4.

Explanation:

frozen [14]3 years ago
5 0

Answer:

she should not have multiplied the sulfur atoms by the subscript 4

Explanation:

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Which of these 2A elements has the largest atomic radius?
Yanka [14]
B saw it on the test
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3 years ago
How much heat in j is giving out when 85.0g of lead cools from 200.0 c to 10.0c
photoshop1234 [79]

Answer:

q = - 2067.2 J of Heat is giving out when 85.0g of lead cools from 200.0 c to 10.0 c.

Explanation:

The Specific Heat capacity of Lead is 0.128 \frac{J}{g\ ^{0}C}

This means, increase in temperature of 1 gm of lead by 1 ^{0}\ C will require 0.128 J of heat.

Formula Used :

q = m.c.\Delta T

q = amount of heat added / removed

m = mass of substance in grams = 85.0 g

c = specific heat of the substance = 0.128

q = m.c.\Delta T = Change in temperature

                                          = final temperature - Initial temperature

                                          = 10 - 200

                                          = -190 ^{0}\ C

put value in formula

q = -  85\times 0.128\times 190

On calculation,

q = - 2067.2 J

- sign indicates that the heat is released in the process

5 0
3 years ago
What type of chemical reaction is C6H6 + CI2 = C6H5CI + HCI
elixir [45]

for it to be balanced in this case would be " <em>4</em> C6H6 + <em>6</em> CI2 = <em>3</em> C6H5CI + <em>9</em> HCI" therefore it's be a <u>Double Replacement</u>

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Answer:

whathappensinthisstory

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During region C of the graph above the energy being absorbed is a. increasing the velocity of the water particles. b. increasing
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Answer:

Your answer would be B. Increasing the distance between the water molecules and increasing their phase energy.

Explanation:

Hope this helps you answer this question!

7 0
2 years ago
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