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kicyunya [14]
3 years ago
5

1. Determinati masa moleculara, raportul atomic si raportul de masa pentru oxidul de aluminiu 2. Determinati compozutia procebtu

ala al hidroxidului de sofiu sau sofa cauxica, 3. Determinati ce cantitate calciu este cuprinds in 112 grame oxid de calciu 4. Determinati ce cantiate de sulf in 490 de grame de acid sulfuric
Chemistry
1 answer:
elena-14-01-66 [18.8K]3 years ago
4 0

Answer:

im solving now

Explanation:

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Pavlova-9 [17]

Answer:

3 factors that are required for biodegradation are

a) Appropriate moisture

b) Oxygen supply  

c) Stable condition

Explanation:

For biodegradation in a landfill, following conditions are essential –  

a) Appropriate moisture

b) Oxygen supply  

c) Stable condition

Contrast to above three conditions, the waste in landfill is kept dry, devoid of oxygen supply, and stirred continuously due to which the organic matter mummify instead of decomposing.  

6 0
3 years ago
Which of the following correctly lists the compounds in order of decreasing acidity?
Nimfa-mama [501]

Answer:

A) H2O > HCCH > NH3 > CH3CH3

Explanation:

H2O is known as a neural compound which a pH close to 7.0. This however makes it more acidic due to it having the lowest pH when compared to the others in the option.

The other options however have their acidic strength as follows: HCCH > NH3 > CH3CH3. This explains why the pattern of decreasing acidic strength is H2O > HCCH > NH3 > CH3CH3

6 0
4 years ago
What is the metal that is grouped with metalloids
vlabodo [156]

Answer:

The post-transition metals cluster to the lower left of this line. Metalloids: The metalloids are boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po). They form the staircase that represents the gradual transition from metals to nonmetals.

Explanation: i googled it

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3 years ago
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Digiron [165]
I don’t know ask you’re teacher
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What makes the star Alpha Centauri appear to be yellow-white??
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