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Burka [1]
3 years ago
9

What kind of simple machine is a shovel

Chemistry
2 answers:
Minchanka [31]3 years ago
8 0
I think a shovel is a wedge simple machine.
Aneli [31]3 years ago
5 0
It is a tool for digging, lifting and moving bulk materials such as: snow, sand, gravel, etc.
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Explain how copper conducts electricity?
gladu [14]

Answer:

Copper is a metal made up of copper atoms closely packed together. As a result, the electrons can move freely through the metal. For this reason, they are known as free electrons. They are also known as conduction electrons because they help copper be a good conductor of heat and electricity.

Explanation:

8 0
3 years ago
How many miles of MgCI2 are there in 345 g of the compound?
Valentin [98]
MgCl2
Mg=24
Cl=35.5×2 = 71
rmm= 71+24=95g
1 mole = molar mass
1 mole = 95g
1g = 1/95 moles
345g= 1/95 × 345
3.6 moles
8 0
2 years ago
How did Rutherford discredit Thomson's plum pudding model of an atom?
Dafna1 [17]

Answer:

He conducted an experiment using gold foil and alpha particles.

Explanation:

Ernest Rutherford in 1911 performed the gold foil experiment which provided a better outlook to the structure of the atom. In his experiment, he bombarded a thin gold foil with alpha particles. Most of the alpha particles passed through the gold foil and just a few was deflected back.

This observation led Rutherford to propose the nuclear model of the atom in which an atom has a small positively charged centre and electrons moving round it.

5 0
3 years ago
Read 2 more answers
The graphs above show Maxwell-Boltzmann distributions for one-mole samples of Ar(g). Graph 1 shows the distribution of particle
Aleks [24]

The Maxwell-Boltzmann distributions is a description of the speeds of different gases at the same temperature.

<h3>What is Maxwell-Boltzmann distributions?</h3>

The Maxwell-Boltzmann distributions is a description of the speeds of different gases at the same temperature. Recall that at the same temperature, the relative speed of gas molecules is described by the  Maxwell-Boltzmann distributions.

The question is incomplete hence we can not be able to show the exact relationship between the two graphs in order to arrive at a justification for the student's claim.

Learn more about Speed of gases: brainly.com/question/25713346

3 0
2 years ago
Put the basic steps of pyruvate oxidation in order.
Lunna [17]

Answer:

1. carboxyl group is removed from pyruvate and releases 1 co2 molecule and leaves 2 carbon molecules

2. 2-carbon molecule is oxidized and electrons lost in oxidation are picked up by nad+ to form Ndah

3. oxidized 2 carbon molecule is attached to coenzyme a to form ACETYL COA

Explanation:

5 0
2 years ago
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