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Finger [1]
3 years ago
14

Which two pieces of data could indicate that a volcano is about to erupt?

Chemistry
1 answer:
BlackZzzverrR [31]3 years ago
3 0

Answer:

D. A change in the types of gas detected in the atmosphere

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Whats the number of moles of O2(g) needed to completely react with 8 moles of CO(g).
slava [35]
A mole of CO2 = 2 moles of O2
8 CO moles x 2 =

16 moles
7 0
3 years ago
Based on their positions in the periodic table, which two elements would most readily combine to make a stable compound? A. hydr
Gekata [30.6K]

D. Sodium and Chlorine


Sodium has 1 electron and Chlorine has 7 electrons. For a compound to be stable, they must have 8 electrons. NaCl = 8 electrons


Fun Fact- You eat NaCl everyday. It's table salt which you put in food.

7 0
4 years ago
Read 2 more answers
How many moles of water are represented by 8.33×10^18 molecules of water​
DENIUS [597]

Answer:

number of moles of water (n) = 1.383 x10 ⁻⁵ mol

Explanation:

Data Given:

No. of molecules of water =  8.33×10¹⁸

No. of Mole of water = ?

Formula Used to calculate

no. of moles = numbers of particles (ions, molecules, atoms) /Avogadro's number

Avogadro's no. = 6.023 x10²³

So the formula could be written as

                no. of moles (n) = no. of molecules of water /6.023 x10²³

Put the values in above formula

                 no. of moles (n) = 8.33×10¹⁸ /6.023 x10²³

                  no. of moles (n) = 8.33×10¹⁸ /6.023 x10²³

                  no. of moles (n) = 1.383 x10 ⁻⁵

so  1.383 x10 ⁻⁵ moles of water are represented by  8.33×10¹⁸ molecules of water.

   

7 0
3 years ago
In a chemical formula the right side is called?
Ghella [55]

Answer:

Product

Explanation:

It is written at the right side of an arrow

8 0
4 years ago
What amount if force need to be applied to a 20 kg bowling ball to give it an acceleration of 5m/s
balandron [24]

Answer:

100N

Explanation:

Given parameters:

Mass of the bowling ball  = 20kg

Acceleration  = 5m/s²

Unknown:

Amount of force applied  = ?

Solution:

To solve this problem, we apply newton's second law of motion.

    Force  = mass x acceleration

Now insert the parameters and solve;

   Force  = 20 x 5  = 100N

5 0
3 years ago
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