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Snowcat [4.5K]
2 years ago
15

If a substance is covalent, then it likely will

Chemistry
2 answers:
svet-max [94.6K]2 years ago
4 0

Answer : If a substance is covalent, then it is likely to melt easily and fast, it may be composed of two or more non-metals which share a covalent bonding between them and it will not conduct electricity.

It is seen that covalent substances are made up of two or more non-metals which share a covalent bond between them. They are found to melt easily and when dissolved in water they are seen to be insoluble. They are also not good conductors of electricity as there is no free electron available to conduct electricity.

12345 [234]2 years ago
4 0

Answer: water

Explanation:

Salt is ionic, and oil is covalent. If you add water, the salt will dissolve in the water, and the oil will float to the top. You could then skim the oil and start over with sugar. To double-check, you could even make sure the oil does not conduct electricity!

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A molecular biologist measures the mass of Cofactor A in an average yeast cell. The mass is 77.91pg. What is the total mass in m
Anni [7]
In this question, you are given the average cofactor mass per cell (77.91pg) and the total cells count(10^5 cells). You are asked how much cofactor that will be found from those cells(microgram= 10^6 picogram). Then the calculation would be:
Cofactor mass= cofactor per cell * cell count= 77.91pg/cell * 10^5 cells= 7.791 x 10^6pg

Then convert the picogram(pg) into microgram: 7.791x 10^6pg/ (10^6pg/microgram)= 7.791 microgram
8 0
2 years ago
Given the initial rate data for the reaction A + B –––> C, determine the rate expression for the reaction.
umka21 [38]

Answer:

B) Δ[C]/Δt = 3,60x10⁻² M⁻¹s⁻¹ [A] [B]

Explanation:

For the reaction A + B → C

The formula for rate of reaction is:

Δ[C]/Δt = k [A] [B]

As you have [A], [B] and Δ[C]/Δt information you can multiply [A] times [B] and take this value as X and Δ[C]/Δt as Y. The slope of this lineal regression will be k.

Thus, you must obtain:

y = 3,60x10⁻² X

Thus, rate of reaction is:

B) Δ[C]/Δt = 3,60x10⁻² M⁻¹s⁻¹ [A] [B]

I hope it helps!

3 0
2 years ago
Read 2 more answers
A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 x 10^20 kg. what is the mass of 1 mole of raindrops? Ho
Anna007 [38]

Solution:

According to the Avogadro's number:  

6.022 *10^23 drops per 0.050 g/ drop = 3.011 *10^22 grams per mole of drops  

3.011 *10^22 grams per 1 kg / 1000 grams = 3.011 *10^19 kilograms / mole of drops  

thus the answers are:  

3.0 *10^22 grams per mole of drops  

3.0 *10^19 kilograms per mole of drops  

And,

In the calculation of how many moles of raindrops in the Pacific Ocean is:  

7.08X10^20kg per 3.0 *10^19 kilograms per mole of drops = 23.5 moles of drops

This is the required solution.  


7 0
2 years ago
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You have four water samples at different temperatures. In which sample are the molecules vibrating at the fastest speed? A. wate
tatiyna

Answer:

99°C

Explanation:

asking questions is Best in life of education

4 0
2 years ago
Letter flipper on a game show. Periodic table pun
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Is there a question or is this a weird "Fun Fact" 
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