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taurus [48]
3 years ago
7

Used to show that the result of an experiment is really due to the condition being tested.

Chemistry
1 answer:
Trava [24]3 years ago
5 0

Answer:

I don't understand what the question is

Explanation:

hope you understand

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What is biological function?
Alika [10]

Answer:

Biological Functions: processes and structures by which organisms adjust to short-term or long-term changes in their environment

4 0
2 years ago
If you burn 29.4 g of hydrogen and produce 263 g of water, how much oxygen reacted?
vovikov84 [41]

The reaction between hydrogen and oxygen to form water is given as:

H_2 + O_2 \rightarrow H_2O

The balanced reaction is:

2H_2 + O_2 \rightarrow 2H_2O

According to the balanced reaction,

4 g of hydrogen (4\times 1) reacts with 32 g of oxygen (2\times 16).

So, oxygen reacted with 29.4 g of hydrogen is:

\frac{29.4\times 32}{4} = 235.2 g

Hence, the mass of oxygen that is reacted with 29.4 g of hydrogen is 235.2 g.

7 0
3 years ago
Wood and a cement block are considered to be transparent and are good conductors of electricity.
Tanzania [10]

Answer:

ITS FALSE electricity doesn't travel through wood same with cement!

3 0
3 years ago
Which of the following ions has a pseudo-noble-gas electron configuration?
Darya [45]

Answer:A pseudo-noble gas configuration is: 1s2 2s2 2p6 3s2 3p6 3d10. Cu^+ has this electron configuration.  The answer is C)

Explanation:

3 0
3 years ago
Read 2 more answers
An atom of nitrogen has seven electrons. Which diagram correctly represents the arrangement of these electrons?
gizmo_the_mogwai [7]

Answer:

Option C.

Explanation:

The arrangement of electrons in their orbital follows certain rules.

The Hund's rule practically explained how electrons are distributed in their orbitals.

The Hund's rule states that electrons distributed among the orbitals of the same shell singly (without partner) before pairing occurs.

In the filling of these electrons in their orbitals, we fill in the electron without pairing first because electrons tends to repel each other before filling with the opposite spin as shown in the attached photo.

8 0
3 years ago
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