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Sonja [21]
3 years ago
5

A substance with a pH of 9 ha

Chemistry
1 answer:
TEA [102]3 years ago
5 0

Answer:

Baking soda has a ph of 9

Explanation:

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A gas is sealed in a rigid canister at a temperature of –5.0°C and a pressure of 713 mmHg. Which of the following actions would
AlekseyPX

Answer: heating the canister

8 0
3 years ago
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1.Which statement best describes an oxidation-reduction reaction?(1 point)
Nataly_w [17]

Answer:

D

Explanation:

7 0
3 years ago
The amount of energy needed to heat 6.2 g of a substance from 50.0°C to 80.0°C is 27.4 J. What is the specific heat capacity of
taurus [48]

Answer:

The heat capacity for the sample is 0.913 J/°C

Explanation:

This is the formula for heat capacity that help us to solve this:

Q / (Final T° - Initial T°) = c . m

where m is mass and c, the specific heat of the substance

27.4 J / (80°C - 50°C) = c . 6.2 g

[27.4 J / (80°C - 50°C)] / 6.2 g = c

27.4 J / 30°C . 1/6.2g = c

0.147 J/g°C = c

Therefore, the heat capacity is 0.913 J/°C

7 0
3 years ago
What is an atomic number?
padilas [110]
An atomic number is <span>the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table or chart.</span>
8 0
3 years ago
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Based on lewis structure analysis, what is the formal charge of the central atom in clf3
MArishka [77]
Formal Charge is calculated as, Lewis structure is attached below,

Formal Charge  =  [# of valence electrons] - [electrons in lone pairs + 1/2 the                                     number of bonding electrons]

# of valence electrons of Cl  = 7

electrons in lone pairs  =  4

number of bonding electrons  =  6

Formal Charge  =  [7] - [4 + 6/2]

Formal Charge  =  [7] - [4 + 3]

Formal Charge  =  [7] - [7]

Formal Charge  =  0

Result:
           Formal charge on Cl in ClF₃ is zero.

4 0
4 years ago
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