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Afina-wow [57]
2 years ago
12

Please help meeee ;-;

Chemistry
2 answers:
insens350 [35]2 years ago
7 0

Answer:

12:B 13: 5 m/s 14: 5 m/s

Explanation:

12: this is a position vs time graph, and that worded description matches the graph because the slope of a p vs t graph is the velocity

13: again, the slope of a position vs time graph is the velocity. 10m/2s = 5 meters a second or m/s

14: same thing. the object travels 30 m in 6 s so 30/6=5 m/s

Elena-2011 [213]2 years ago
3 0

Answer:

number (12 is c)  (13 is 5) (14 is 5)

Explanation:

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It can form dipole-dipole interactions but that’s all
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What is the total number of Joules of heat absorbed by 65.0 grams of water when the temperature of the water is raised from 25°C
Norma-Jean [14]

Answer:

Total number of heat absorbed is 4.08kJ

Explanation:

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2 years ago
What is the total number of valence electrons in an atom of germanium in the ground state?
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3 0
3 years ago
In one sample of a compound of copper and oxygen, 3.12g of the compound contains 2.50g of copper and the remainder is oxygen. Ca
blsea [12.9K]

Answer:

% composition O = 19.9%

% composition Cu = 80.1%

Explanation:

Given data:

Total mass of compound = 3.12 g

Mass of copper = 2.50 g

Mass of oxygen = 3.12 - 2.50 = 0.62 g

% composition = ?

Solution:

Formula:

<em>% composition = ( mass of element/ total mass)×100</em>

% composition Cu = (2.50 g / 3.12 g)×100

% composition Cu = 0.80 ×100

% composition Cu = 80.1%

For oxygen:

<em>% composition = ( mass of element/ total mass)×100</em>

% composition O = (0.62 g / 3.12 g)×100

% composition O = 0.199 ×100

% composition O = 19.9%

5 0
2 years ago
Im sooooooooooooooooooooooooo cufused on science
Elena-2011 [213]

Answer:

What do you need please to understand?

6 0
2 years ago
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