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natali 33 [55]
3 years ago
8

Which of the following elements is most likely to react? A.Cu B.Al C.Li D.Mg

Chemistry
1 answer:
Alexeev081 [22]3 years ago
4 0
A.cu is the answer to this question
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Pickle is not stored in the metal vessel for long time.why?​
larisa86 [58]

Answer:

Ummm a pickle is stored in glass container usually in the fridge

Explanation:

so the pickles dont go bad they go in the fridge so they dont mold. if you were to put them in a metal container they would get very cold when you put them in the fridge.

5 0
2 years ago
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When you use a simple machine to do work, ________.
cricket20 [7]

Answer:

distance decreases and force increases

Explanation:

  • Simple machine means less power
  • Hence it will require more force.
  • Hence distance will decrease with respect to force and force will decrease
6 0
3 years ago
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Water could be made to boil lower than its normal boiling point of 100 degrees Celsius at 92 degrees Celsius by?
KonstantinChe [14]
Water could be made to boil lower than its normal boiling point of 100 degrees Celsius at 92 degrees Celsius by lowering the atmosphere or external  pressure.

The boiling point is the temperature at which the vapor pressure of liquid equals the external or atmosphere pressure.

So, if you decrease the external pressure the temperature needed for the liquid reach the lower external pressure is also lower..


You can accomplish by taking the water to higher levels in the Earth (atmosphere pressure at high altitudes is lower than at sea level) or by creating vaccum.
 
3 0
4 years ago
The gravitational force acting on an object is also called the object's _____. A) mass B) weight C) density D) volume​
Veseljchak [2.6K]

Answer:

B) weight

Thats it no explanation

5 0
4 years ago
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Calculate the percentage by mass of the indicated element in the following compounds. Hydrogen in ascorbic acid, HC6H7O6, also k
Scorpion4ik [409]

Answer: The mass percent of hydrogen in ascorbic acid is 4.5 %

Explanation:

In C_6H_8O_6, there are 6 carbon atoms, 8 hydrogen atoms and 6 oxygen atoms.

To calculate the mass percent of element in a given compound, we use the formula:

\text{Mass percent of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Molar mass of ascorbic acid}}\times 100

Mass of hydrogen = 8\times 1g/mol=8g

Molar Mass of ascorbic acid =6\times 12g/mol+8\times 1g/mol+6\times 16g/mol=176g

Putting values in above equation, we get:

\text{Mass percent of hydrogen}=\frac{8g}{176}\times 100=4.5\%

Hence, the mass percent of of hydrogen in ascorbic acid is 4.5 %.

8 0
3 years ago
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