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weeeeeb [17]
3 years ago
5

Which of the following pieces of lab equipment measures liquid volume most precisely?

Chemistry
1 answer:
VARVARA [1.3K]3 years ago
4 0

Answer:

Graduated cylinder is the correct answer for this question

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If a 58 g sample of metal at 100 c is placed into calorimeter containing 60g of water at 18 c , the temperature of the water inc
tatiyna

Answer:

The water will absorb 1004.16 Joule of heat

Explanation:

Step 1: Data given

Mass of the metal = 58.00 grams

Temperature of the metal = 100.00 °C

Mass of water = 60.00 grams

Temperature of water = 18.00 °C

Final temperature = 22.00 °C

Specific heat of water = 4.184 J/g°C

Step 2: Calculate the amount of heat absorbed by the water in joules

Q = mass *specific heat *ΔT

 ⇒ with Q = the heat absorbed by water

⇒ with mass of water = 60.00 grams

⇒ with specific heat of water = 4.184 J/g°C

⇒ with ΔT = The change in temperature of water = T2 - T1 = 22 - 18 = 4.0 °C

Q = 60.00 * 4.184 J/g°C * 4.0 °C

Q = 1004.16 J

The water will absorb 1004.16 Joule of heat

6 0
3 years ago
Solve to me this question
Luda [366]
According to my calculations the correct Answer is C. +694. The answers A B and D Are incorrect. It cannot be A because I said it also cannot be B because C=H. The answer would not be D because balls in your jaws = +1192 And the answer will be CORRECT ANSWER C=+694
8 0
2 years ago
Which temperate change indicate an increase in the average kinetic energy of the molecules in a sample?
Mkey [24]

An increase in temperature increases the average kinetic energy of molecules.

When the temperature of a molecule increases, the molecule starts to move at a faster rate. The faster a molecule moves, the more kinetic energy it has.

8 0
3 years ago
A compound is a substance made up of 2 or more _____.
krek1111 [17]

A compound is a substance made up of 2 or more elements

5 0
2 years ago
What are the combinations attached groups, atoms, or lone pairs you can add to a central atom?
Mazyrski [523]

Answer:

Hello your question is poorly written below is the well written question

Explore what molecules you can build From Lewisstructureandmoleculargeometry . What are the combinations attached groups, atoms, or lone pairs you can add to a central atom?

answer :

  • when there are three ( 3 ) groups and a lone pair the shape of the molecule will be pyramidal but when the three ( 3 ) groups does not have any lone pair attached to it, the shape of the molecule will be trigonal planar
  • When there are two groups and  two lone pairs the shape of the molecule will be bent while when there are two groups without lone pairs the shape of the molecule will be linear

Explanation:

From molecular Geometry changes there are two groups to be considered here and they are group and lone pairs

<u>The combinations that can be added to a central atom </u>

when there are three ( 3 ) groups and a lone pair the shape of the molecule will be pyramidal but when the three ( 3 ) groups does not have any lone pair attached to it, the shape of the molecule will be trigonal planar

When there are two groups and  two lone pairs the shape of the molecule will be bent while when there are two groups without lone pairs the shape of the molecule will be linear

3 0
2 years ago
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