CHEMISTRY HIGH SCHOOL

Which element has properties most similar to Bromine? A) F
B) Kr
C) S
D) Se

Answers

Answer 1
Answer: Fluorine (F) will have properties similar to Bromine (Br) because it belongs to the same group as Bromine.
Answer 2
Answer: the correct answer is flourine

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26 A substance that dissolves in water and produces hydronium ions as the only positive ions in the solution is classified as(1) an alcohol (3) a base
(2) an acid (4) a salt

Answers

Answer : The correct option is, (2) an acid

Explanation:

As we know that when a substance (acid) that dissolves in water, it produces hydronium ion as a positive ion and conjugate base as a negative ion.

For example :

When CH_3COOH (acid) dissolves in water, it produces hydronium ion as a positive ion and conjugate base as a negative ion.

The balanced reaction will be,

CH_3COOH+H_2O\rightarrow H_3O^++CH_3COO^-

Therefore, the substance is, (2) an acid
(2) an acid
It's caused by an Arrhenius acid mixing with water to form Hydronium and Hydroxide ions

What is the molar mass of C2H6O

Answers

46.0684g I think because you have to concert grams to moles or moles to grams

What are the main characteristics for the definition of work?

Answers

Answer:

1-There Must be some displacement in the direction of force.                                                  2-Angle between force and displacement is 0°.                                                                            

The formula C2H4 can be described as

Answers

C2H4 is Ethylene.  Ethylene is a simple hydrocarbon alkaline.

An experiment requires 40.0g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?

Answers

Density= mass/volume
volume=mass/density
volume= 40.0g/1.114g per mL
volume= 35.90664273 mL
volume = 35.9 mL

Marshall determines that a gas has a gage pressure of 276 kPa. What's the absolute pressure of this gas? A. 326 kPa
B. 156 kPa
C. 376 kPa
D. 176 kPa

Answers

Answer: The absolute pressure is 376 kPa.

Explanation :

The absolute pressure of a gas is defined as the sum of gauge pressure and the atmospheric pressure.

We know that the atmospheric pressure of a gas is 101.3 kPa.

So, Absolute pressure becomes 276 kPa + 101.3 kPa = 377.3 kPa

Approximately it can be written as, 376 kPa.

So, the correct option is (C) " 376 kPa ".

Hence, this is the required solution.

C.... 376 tbh just took the test and was right
Other Questions
Where is the smallest negatively-charged particle found in an atom?
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