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dybincka [34]
3 years ago
9

Select the correct answer.

Chemistry
2 answers:
serg [7]3 years ago
7 0
7^5 as a multiplication expression is 7 x 7 x 7 x 7 x 7
padilas [110]3 years ago
6 0
Answer 1 35
Answer 2 16807
Answer 3 78125
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Is a covalent bond the same as an atomic compound? Please explain why and if not, please explain the difference.
dezoksy [38]
In an ionic bond, one atom essentially donate an electron to stabilize the other atom. A molecule bond is made when two or more atoms form a chemical bond, linking them together. The two types of bonds are ionic bonds and covalent bonds.
6 0
3 years ago
A 10-mL pipette delivers 9.99,10.01,9.97, and 10.8 mL in an experiment. Calculate the mean value and the average deviation from
Harman [31]
To find the mean of a number of numbers, First you add them up.
9.99 + 10.01 + 9.97 + 10.8 = 40.77
Then, you divide the result by how much numbers you have (in this case 4)
40.77 / 4 = 10.1925

So, the mean value is 10.1925.

The deviation is the difference between the number and the mean.
(number - mean = Average deviation)

So you get:
9.99 - mean = 9.99 - 10.1925 = -0.2025
10.01 - 10.1925 = -0.1825
9.97 - 10.1925 = -0.2225
10.8 - 10.1925 = 0.6075


Now to find the Average deviation, you do the same steps as finding the mean. Add them up, and divide by 4 (because there is 4 numbers)
P.S. Negative numbers become positive.

0.2025 + 0.1825 + 0.2225 +0.6075 = 1.215

1.215 / 4 = 0.30375

So, the Average Deviation is 0.30375

Hope this Helps :)
5 0
3 years ago
Predict the 3-D shape of Silane (SiH4) according to the VSEPR theory.
Leya [2.2K]
The silane molecule has the shape of a regular tetrahedron. Four hydrogen atoms form the vertices of a tetrahedron. Silicon atom is located in the centre of the tetrahedron.
8 0
3 years ago
There are several ways to model a compound. One type of model is shown. What is the chemical formula for the molecule modeled?
Pavel [41]

Answer:

C. C₆H₁₂O₂

Explanation:

Step 1: Count the number of H atoms

12 H atoms present

Step 2: Count the number of C atoms

6 C atoms present

Step 3: Count the number of O atoms

2 O atoms present

Step 4: Combine

C₆H₁₂O₂

8 0
3 years ago
Read 2 more answers
All of the following increase from left to right across the second period of the periodic table (Na - Ar) EXCEPT
DerKrebs [107]

Answer: effective nuclear charge

Explanation: This is because electrons are added to tell same shell at about the same distance from the nucleus

4 0
3 years ago
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