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Paha777 [63]
2 years ago
5

What’s the answer????

Chemistry
1 answer:
dezoksy [38]2 years ago
8 0
Should be , b
. Not positive tho
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Convergent boundaries are zones on what plates
Vinil7 [7]
Top surface plates, think of an earthquake.
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3 years ago
Question 1: A blocked-off meander eventually becomes
Setler [38]
Question 1 is A.) an oxbow lake
Question 2 is C.) pebble
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3 years ago
Gerald's science teacher mixed room temperature samples of hydrochloric acid and sodium hydroxide in a large beaker. The solutio
Rama09 [41]

Answer:

A.

A chemical reaction was producing a new substance.

Explanation:

Equation of the reaction

NaOH + HCl --> NaCl + H2O

Heat of neutralization is the amount of heat evolved when one mole of acid reacts with one mole of an alkaline to form one mole of water.

When a neutralisation reaction is carried out, there is an exothermic change; energy released into the surroundings therefore since heat is given out which is what is felt.

8 0
3 years ago
A 10-mL pipette delivers 9.99,10.01,9.97, and 10.8 mL in an experiment. Calculate the mean value and the average deviation from
Harman [31]
To find the mean of a number of numbers, First you add them up.
9.99 + 10.01 + 9.97 + 10.8 = 40.77
Then, you divide the result by how much numbers you have (in this case 4)
40.77 / 4 = 10.1925

So, the mean value is 10.1925.

The deviation is the difference between the number and the mean.
(number - mean = Average deviation)

So you get:
9.99 - mean = 9.99 - 10.1925 = -0.2025
10.01 - 10.1925 = -0.1825
9.97 - 10.1925 = -0.2225
10.8 - 10.1925 = 0.6075


Now to find the Average deviation, you do the same steps as finding the mean. Add them up, and divide by 4 (because there is 4 numbers)
P.S. Negative numbers become positive.

0.2025 + 0.1825 + 0.2225 +0.6075 = 1.215

1.215 / 4 = 0.30375

So, the Average Deviation is 0.30375

Hope this Helps :)
5 0
3 years ago
What is the density of a sample of rubbing alcohol if it has a specific gravity of 0.789?
Ymorist [56]
The density will be 789.


6 0
3 years ago
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