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Blizzard [7]
3 years ago
9

Sitting at a four-legged table there is: 1 grandma, 2 moms, 2 daughters and a granddaughter. How many legs are under the table?

Chemistry
1 answer:
lbvjy [14]3 years ago
3 0

Answer:

The answer is 14 "legs"

Explanation:

There are 2 legs per person so 10 legs (5 people * 2) plus the 4 legs the table has.

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Also need to know some of this stuff
irinina [24]

Answer:

answers are in attachment

Explanation:

1. Synthesis Reaction: In this type of reaction multiple reactant combine to form a single product.

2. Decomposition Reaction: In this type of reaction single compound or reactant break down into new elements or compounds.

3. Replacement Reaction: In this type of reaction an element replace an element in a compound.

4. Even hydrogen is not a metal but it can act as metal in single replacement reaction.

5. In combustion reaction fuel react with oxygen and give heat and light that increase temperature of surrounding.

6. In in-complete combustion reaction fuel react with in-sufficient oxygen and give carbon monoxide and carbon in form of soot.

7. Base is a compound that liberate OH⁻ ion in water.

8. indicators have different color in acid and base depends on pH of the solution

9. Salt and water are the product of neutralization reaction

               NaOH + HCl = NaCl + H₂O

10. The pH of neutral solution is 7.  

6 0
3 years ago
Please help....thanks :)
Naya [18.7K]

Answer: someone help me with my work its so  hard

Explanation:

6 0
3 years ago
Can someone help me with number 4? Please and thank you
kipiarov [429]

Answer:

1st Blank: <em>1 Co</em>

2nd Blank:<em> 2 Na2S</em>

3rd Blank:<em> 4 Na</em>

4th Blank:<em> 1 CoS2</em>

Explanation:

<em>Trust me</em>

6 0
3 years ago
Coffee is decaffeinated industrially using supercritical (sc) CO2. One advantage to using scCO2 is that the polarity of the supe
koban [17]

Answer:

Yes

Explanation:

A supercritical fluid has good properties for both liquid and as for extraction properties, the advantages then include:

  • The fact that it has a lower viscosity than liquid CO2 allowing it to move through and around coffee beans more thoroughly with creating back pressure
  • Its density is comparable to that of liquid CO2 meaning there is much CO2 per litre as there is liquid form making it more efficient
  • It has a higher diffusivity than liquid CO2 which aids with penetration of the coffee beans on a molecular level

This experiment would not work with tea leaves because they also contain caffeine

6 0
3 years ago
If an acid or alkali is diluted by a factor of 10, what effect will this have on its pH?
Alisiya [41]

Answer: When an acidic solution is diluted with water the concentration of H + ions decreases and the pH of the solution increases towards 7.

Explanation:

5 0
3 years ago
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