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VashaNatasha [74]
3 years ago
10

If two angles add up to 90 degrees, then the two angles form a right angle

Chemistry
2 answers:
Sphinxa [80]3 years ago
7 0

Answer:

A complementary angle is an angle that adds up to 90 degrees. supplementary angles add up to 180 degrees. So a supplementary angle lies on a single, straight line, and a complementary angle is a right angle.

Elena-2011 [213]3 years ago
3 0

Answer:

Explanation:

A complementary angle is an angle that adds up to 90 degrees. supplementary angles add up to 180 degrees. So a supplementary angle lies on a single, straight line, and a complementary angle is a right angle.

You might be interested in
Convert 36509 int scientific notation
DIA [1.3K]

Answer:

36509

Explanation:

3.6509×10^2

=3.6509e4

=36.509×10^3

=36509

6 0
3 years ago
Which of the following is NOT a reason that carbon is the basis of organic chemistry? Question 3 options:
mina [271]
I believe the best reason as for why carbon is the basis of organic chemistry would be D. Carbon can bond with hydrogen.
5 0
4 years ago
If 14.5 g of MnO4- (permanganate) react with manganese (II) hydroxide how many grams of manganese (IV) oxide will be produced? T
Veronika [31]

Answer:

m_{MnO_2}=21.2gMnO_2

Explanation:

Hello,

In this case, given the balanced reaction:

2MnO_4^-+2Mn(OH)_2\rightarrow 4MnO_2+2OH^-+H_2O

We can see a 2:4 mole ration between permanganate ion (118.9 g/mol) and manganese (IV) oxide (86.9 g/mol), that is why the resulting mas of this last one turns out:

m_{MnO_2}=14.5gMnO_4^-*\frac{1molMnO_4^-}{118.9gMnO_4^-}*\frac{4MnO_2}{2molMnO_4^-}  *\frac{86.9gMnO_2}{1molMnO_2} \\\\m_{MnO_2}=21.2gMnO_2

Best regards.

5 0
4 years ago
What would happen if there no decomposers
AleksAgata [21]
Producers would not have enough nutrients .
3 0
3 years ago
Read 2 more answers
Manganese has a total of 25 electrons, but the following orbital notation for manganese is incorrect. Explain the error in terms
laila [671]
The Orbital configuration for Manganese is as follows:

1s2 2s2 2p6 3s2 3p6 4s2 3d5

It says 3d is shown with five orbitals- this is correct

Then it says the first two orbitals have two electrons-this is incorrect. 

When filling in the orbitals for any element, you first need to distribute to ALL orbitals then extras go from there.

The orbital d can have up to 10 electrons so you need to distribute at least one electron to all ten. Since you only have 5 then only 5 orbitals would have electrons in them. In order for ANY of the orbitals to have two electrons, there would need to be AT LEAST 11 electrons to distribute. 
4 0
3 years ago
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