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DIA [1.3K]
4 years ago
9

The subatomic particles that play the key role in determine the properties of an element electrons

Chemistry
1 answer:
Bad White [126]4 years ago
8 0
True........The subatomic particles that play the key role in determining the properties of an element are electrons.



 
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When adding the measurements 42.1014 g + 190.5 g, the answer has ___ significant figures.
andrezito [222]

Answer: The answer has 7 significant figures

Explanation:

 The addition of  190.5  and 42.1014 will give 232.6014.  Counting the digits will give 7 significant figures.

4 0
4 years ago
Which has a higher melting point and why? LiF or Rbl?
ExtremeBDS [4]

Explanation:

To get a better understanding of the answer,let's take use of Fajan's rule which says that no bond is neither purely covalent or purely ionic.

For ionic compounds MP and BP are higher than covalent compounds. So in order to find the one with higher MP,it's enough to find the most ionic compound among the given options.

In LiF,LiCl,LiBr and LiI,The cation is same and anion only differs.According to Fajans rule Smaller anion and larger cation favours ionic bonding and vice versa. Since Fluoride is the smallest anion,LiF is the most ionic compound and hence it is the one with highest MP from the options.Hope it helps

7 0
3 years ago
Which of the following is a property of water a. polar molecule b. regulates temperature c.universal solvent d. all of the above
Vladimir [108]
The answer is the letter c
3 0
3 years ago
Read 2 more answers
If an object has a volume of 5 mL and a mass of 50 g, what is the density of the object?
mr Goodwill [35]
Using the formula density = mass ÷ volume, I got my answer as 10g/cm^3 or 10g/mL
6 0
3 years ago
Yoooo help me w this one
Scilla [17]

Answer:

0.84kg of gatorade powder

Explanation:

From the question given, we were told that 0.6kg of gatorade powder required 5 gallons of water.

To obtain the mass of gatorade needed for 7 gallons of water, we simply do the following:

0.6kg of gatorade powder required 5 gallons of water.

Therefore, xkg of gatorade powder will require 7 gallons of water i.e

xkg of gatorade powder = (0.6 x 7)/5

xkg of gatorade powder = 0.84kg

Therefore, 0.84kg of gatorade powder will be required.

6 0
3 years ago
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