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sergiy2304 [10]
3 years ago
5

What is the name of a mass that is 10-6 smaller than a gram?

Chemistry
1 answer:
photoshop1234 [79]3 years ago
6 0

The amount of matter present in an object is said to be its mass. The standard SI unit of mass is kg that is a kilogram.

The other units are (g) grams, ton (t), atomic mass unit (u) etc. which are interconvertible.

The name of the mass that is 10^{-6} smaller than a gram is microgram. As, 1 \mu g = 10^{-6} g.

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What is the KE of 750 kg car moving at 25 m/s?
Ymorist [56]

Answer: 234,375 J=234.375 kJ

Explanation:

K= m*V²/2

K=750kg*625m²/s²/2=234375 J

8 0
3 years ago
Select correct examples of linear molecules for five electron groups. Select correct examples of linear molecules for five elect
Shalnov [3]

Explanation:

Formula to calculate hybridization is as follows.

                Hybridization = \frac{1}{2}[V+N-C+A]

where,

V = number of valence electrons present in central atom

N = number of monovalent atoms bonded to central atom

C = charge of cation

A = charge of anion

So, hybridization of BeCl_{2} is as follows.

              Hybridization = \frac{1}{2}[V + N - C + A]

                                    = \frac{1}{2}[2 + 2]

                                    = 2

Hybridization of BeCl_{2} is sp. Therefore, BeCl_{2} is a linear molecule. There will be only two electron groups through which Be is attached.

Similarly, hybridization of XeF_{2} is calculated as follows.

         Hybridization = \frac{1}{2}[V + N - C + A]

                                    = \frac{1}{2}[8 + 2]

                                    = 5

Therefore, hybridization of XeF_{2} is sp^{3}d. Therefore, [tex]XeF_{2} is also a linear molecule. Though there are three lone pair of electrons present on a xenon atom and it is further attached with fluorine atoms through two electron pairs. Hence, there are in total five electron groups.

Thus, we can conclude that out of the given options XeF_{2} is the correct examples of linear molecules for five electron groups.

7 0
2 years ago
PLEASE HELP!
11111nata11111 [884]
The answer is A.......
6 0
3 years ago
How many liters of 3.5 M solution can be made using 23 moles of LiBr *must show work to get credit*
MrMuchimi

<u>Answer:</u> 6.57 L of solution can be made.

<u>Explanation:</u>

Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:

\text{Molarity of solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (L)}} .....(1)

Given values:

Molarity of LiBr = 3.5 M

Moles of LiBr = 23 moles

Putting values in equation 1, we get:

3.5mol/L=\frac{23mol}{\text{Volume of solution}}\\\\\text{Volume of solution}=\frac{23mol}{3.5mol/L}=6.57L

Hence, 6.57 L of solution can be made.

5 0
3 years ago
Please help(15 points)
Triss [41]

Answer: because they take a lot of tie to form  

4 0
3 years ago
Read 2 more answers
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