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zloy xaker [14]
3 years ago
8

A catalyst -

Chemistry
2 answers:
cupoosta [38]3 years ago
3 0
A catalyst increases the reactions rate
vlabodo [156]3 years ago
3 0
The naswer is d because when a catalyst reacts with a product it increases the tempeture for the reaction to occur faster
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An unknown compound has a percent composition of 52.10% potassium, 15.8% carbon, and 32.1% oxygen. The molar mass of the compoun
lianna [129]
To determine the empirical formula and the molecular formula of the compound, we assume a basis of the compound of 100 g. We do as follows:

       Mass              Moles                     
K    52.10     52.10/39.10 = 1.33         1.33/1.32 ≈ 1
C    15.8       15.8/12         = 1.32         1.32/1.32 ≈ 1
O     32.1      32.1 / 16       =  2.01        2.01/1.32 ≈ 1.5

The empirical formula would most likely be KCO.
The molecular formula would be K2C2O3.
4 0
3 years ago
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Is mass conserved when 200 g of water undergoes a physical change? Use complete sentences to support your answer by explaining h
andrew-mc [135]

Answer:

-200

Explanation:

7 0
3 years ago
How many TOTAL atoms are in the following molecule? NaHCO3
blagie [28]

Answer:

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6 0
3 years ago
A block of iron has a mass of 826 g. What is the volume of the block of iron whose density at 25°C is 7.9 ?
kolezko [41]

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104.56cm³

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Mass=826g

Density =7.9g/cm³

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2 years ago
An acid increases the hydroxide ion concentration of water.<br>True<br>or<br>False
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False is the answer!
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