Answer:
88,306
Step-by-step explanation:
Multiplying times 7 steps:
Step 1. 8 x 7 = 56
Step 2. 1 x 7 = 7
Step 3. Add the 5 from step 1. 7 + 5 = 12
Step 4. 3 x 7 = 21
Step 5. Add the 1 from step 3. 21 + 1 = 22
Step 6. 1 x 7 = 7
Step 7. Add the 2 from step 5. 7 + 2 = 9
Equals = 9226
Steps for times 6:
Step 1. 6 x 8 = 48
Step 2. 1 x 6 = 6
Step 3. Add the 4 from step 3. 6 + 4 = 10
Step 4. 3 x 6 = 18
Step 5. Add the 1 from step 3. 18 + 1 = 19
Step 6. 1 x 6 = 6
Step 7. Add the 1 from step 5.
Equals = 79080
Now add the two 9226 + 79080 = 88, 306
Took me a while to work out and explain lol.
Answer:
7-(-3)= 10
7-3=4
59-(-1)= 60
-17-(6)= -11
Step-by-step explanation:
Hope this helps! :3
Answer:
Step-by-step explanation:
C
l
2
+
2
K
B
r
→
2
K
C
l
+
B
r
2
Given:
300
g
of
C
l
2
300
g
of
K
B
r
(a) Mass of
C
l
2
= 300g
Molecular mass of
C
l
2
= 2(35.45) = 70.906 g
/
m
o
l
No.of moles of
C
l
2
=
m
a
s
s
/
m
o
l
a
r
m
a
s
s
=
300
/
70.906
=
4.23
moles
Mass of
K
B
r
=
300
g
Molar mass of
K
B
r
=
39
+
79.9
=
118.9
g
/
m
o
l
No.of moles of
K
B
r
=
300
/
118.9
=
2.52
moles
Now,
Consider the equation:
C
l
2
+
2
K
B
r
→
2
K
C
l
+
B
r
2
1
mole of
C
l
2
= 2 moles of
K
C
l
4.23
moles of
C
l
2
= 2x4.23=
8.46
moles
2
moles of
K
B
r
= 2 moles of
K
C
l
2.52
moles of
K
B
r
=
2.52
moles
Now convert moles to mass,
Mass of
K
C
l
produced by
C
l
2
=
8.46
×
70.906
=
599.8
g
Mass of
K
C
l
produced by potassium bromide =
2.52
×
74.5
=
187.74
g
Answer:
top right
Step-by-step explanation:
it is the trapizoid
