Answer is 355 grams.
Explanation:
Given the molecular weights:
M
r
N
a
O
H
=
40
g
m
o
l
M
r
N
a
2
S
O
4
=
142
g
m
o
l
The analogy of the moles will be held constant:
n
N
a
O
H
n
N
a
2
S
O
4
=
2
1
n
N
a
O
H
n
N
a
2
S
O
4
=
2
For each one, substitute:
n
=
m
M
r
Therefore:
n
N
a
O
H
n
N
a
2
S
O
4
=
2
m
N
a
O
H
M
r
N
a
O
H
m
N
a
2
S
O
4
M
r
N
a
2
S
O
4
=
2
200
40
x
142
=
2
200
⋅
142
40
x
=
2
200
⋅
142
=
2
⋅
40
x
x
=
200
⋅
142
2
⋅
40
=
100
⋅
142
40
=
10
⋅
142
4
=
1420
4
=
=
710
2
=
355
g
r
a
m
s
(or just use a calculator)
B. Some information; the data still valuable information about the hypothesis.
1. energy levels
2. it would stay carbon-14
3. it would become lead-107
4. protons,nuetrons,electrons
Answer:
i think.its D ddddddddddddd
Explanation:
Glass is an amorphous solid because its internal arrangement of crystals lacks shape and forms.
Amorphous means without form.
- When a molten substance crystallizes with enough time in a stable environment, it has a well ordered crystalline structure to it. Such materials are said to be crystalline in nature.
- Some substances like glass are formed by rapid cooling and its molecules are not properly formed.
- This makes them to lack a well ordered arrangement of their molecules.
- The long range ordered arrangement seen in crystalline materials is non-existent in glass.
Learn more:
Non-crystalline brainly.com/question/6528456
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