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AlekseyPX
3 years ago
12

Which of the following statements does not support scientific evidence of the Big Bang Theory?

Chemistry
1 answer:
enyata [817]3 years ago
8 0
The answer is B Evidence shows that the universe is continually expanding.
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After severe dust storms in the 1930s, practices were put in place to reduce soil erosion. Which
Bingel [31]

Answer:

the answer is B) Planting native grasses in bare soil

Explanation:

3 0
3 years ago
Which barium nitrate solution requires the greatest moles of solute?
DochEvi [55]

Answer:

The answer to your question is: letter E,  1.77 L of 1.55 M Ba(NO3)2

Explanation:

Formula

Molarity = \frac{moles}{volume (L)}

moles = Molarity x volume (L)

a. 2.58 L of 0.0250 M Ba(NO3)2

moles = (0.025) (2.58)

moles = 0.065 M

b. 19.23 mL of 8.5 × 10−2 M Ba(NO3)2

moles = (8.5 x 10 ⁻²) (0.01923)

moles = 0.0016

c. No right answer.

d. 26.20 mL of 2.21 M Ba(NO3)2

 moles = (2.21)(0.0262)

moles = 0.058

e. 1.77 L of 1.55 M Ba(NO3)2

  moles = (1.55)(1.77)

  moles = 2.74            This solution needs the greatest concentration of

                                    Ba(NO₃)₂

6 0
3 years ago
2. If Ben ran for 15 minutes and went 120 meters, how fast did he run?​
jeka57 [31]

Answer:

8m/min

Explanation:

120 m / 15 min = 8 meters per min

3 0
3 years ago
Read 2 more answers
How many moles of sucrose<br> are in 5.25x1029 sucrose<br> molecules? (in scientific notation)
Lorico [155]

Answer:

8.72 × 10^5 moles

Explanation:

To find the number of moles in 5.25 x 10^29 molecules of sucrose, we divide the number of molecules by Avagadro constant (6.02 × 10²³ molecules). That is;

no. of moles = no. of molecules ÷ 6.02 × 10²³ molecules

In this case of sucrose, no of moles contained is as follows;

5.25 × 10^29 ÷ 6.02 × 10²³

5.25/6.02 × 10^ (29-23)

0.872 × 10^6

= 8.72 × 10^5 moles

5 0
3 years ago
In the reaction, 3Cu + 2Al3+ → 3Cu2+ + 2Al, which substance is being oxidized?
Wittaler [7]
In this reaction, Copper is the element being oxidized because it is losing electrons. It starts with a neutral charge (0) and ends up with a 6+ charge. Because its charge is increasing, it is being oxidized (losing electrons).

4 0
3 years ago
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