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aksik [14]
3 years ago
12

What are three things that living things need to live

Chemistry
2 answers:
Grace [21]3 years ago
8 0
Food shelter oxygen
nasty-shy [4]3 years ago
3 0

water, food, and air.

Additionally:

Shelter and clothes

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Aces true or false, negatively charged particles in an atom are called electrons?
ZanzabumX [31]
True... atoms contain what are called electrons and protons. the protons being possitively charged and the elctrons being negatively charged
5 0
4 years ago
An oxide of nitrogen is 25.9% N by mass, has a molar mass of 108 g/mol, and contains no nitrogen-nitrogen or oxygen-oxygen bonds
Sonja [21]

Answer:

The compound is N2O4

Explanation:

We have certain important pieces of information about the compound;

1) it is an oxide (a binary compound of nitrogen and oxygen)

2) there are no N-N bonds present

3) there are no O-O bonds present

Since it contains only nitrogen and oxygen then nitrogen accounts for 25.9% of the molecule by mass then oxygen should account for (100-25.9) = 74.1% oxygen

Relative atomic mass of oxygen = 16

Relative atomic mass of nitrogen = 14

We now deduce the empirical formula

Nitrogen. Oxygen

25.9/14. 74.1/16

1.85/1.85. 4.6/1.85 (divide through by the lowest ratio)

1 2

Empirical formula is NO2

To find the molecular formula

(NO2)n = 108

(14+2(16))n= 108

46n=108

n= 108/46

n= 2

Therefore molecular formula= N2O4

4 0
3 years ago
What can I do to improve my basic chemistry?​
LUCKY_DIMON [66]

Answer:

read a lot and understand what you read

do practicals

4 0
3 years ago
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Name two landforms created from deposits by rivers.
pav-90 [236]
Alluvial fans and deltas are formed.
5 0
3 years ago
What is the formula for copper(1) chlorate?​
raketka [301]

Answer:

CICUO3

Explanation:

copper 1 chlorate is made up of copper ion and a polyatomic ion of chlorine and oxygen

8 0
3 years ago
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