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earnstyle [38]
4 years ago
8

Pls help I am confused my sister got me sweating

Chemistry
2 answers:
Vaselesa [24]4 years ago
6 0
<h2>Answer:<u><em> HI</em></u></h2>

Explanation:

Sloan [31]4 years ago
4 0

Answer:

Im pretty sure its B. is released by salivary glands.

Explanation:

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A jar is filled to the top with water, and a piece of cardboard is slid over the opening so that there is only water in the . If
aivan3 [116]

Answer:

it will all fall unless these is air

Explanation:

7 0
3 years ago
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Why is the scientific process a flexible process? Please help I need to know this for finals.
Aleks04 [339]
The scientific process has to adapt to what the experiment is.
3 0
3 years ago
Consider the following reaction at equilibrium: 2CO2 (g) ↔ 2CO (g) + O2 (g) ∆H° = -514 kJ Le Châtelier's principle predicts that
Elza [17]
<h3><u>Answer;</u></h3>

increase the partial pressure of CO2

<h3><u>Explanation;</u></h3>

2CO(g) + O2(g) -------> 2CO2(g) + heat

  • Removel of Oxygen makes the equilibrium to move towards the left side (reactants) because the reactants concentration is decreasing. According to the LeChâtelier’s principle equilibrium moves towards the lower concentration.
  • When the partial pressure of any of the gaseous reactants or of the products is increased, the position of equilibrium is shifted so as to decrease its partial pressure. In this case, the removal of oxygen causes a shift to to the left which causes an increase in the partial pressure of CO2.
6 0
3 years ago
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Which ion has the same electron configuration as an atom of He?
mariarad [96]

Answer;

H- (negatively charged hydrogen ion)

Explanation;

The hydrogen ion has the same electron configuration as an atom of Helium. -Hydrogen ion is formed when a hydrogen atom loses or gains an electron. A positively charged ion is formed when hydrogen atom loses an electron (remaining with zero electrons) while a negatively charged ion (H-) is formed when a hydrogen atom gains an electron thus having 2 electrons.

-Helium atom has two electrons, therefore, it is similar with an negatively charged hydrogen.

3 0
3 years ago
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An upward force acts on a proton as it moves with a speed of 2.0 × 105 meters/second through a magnetic field of 8.5 × 10-2 tesl
mel-nik [20]

Explanation :

It is given that,

Speed of the proton, v=2\times 10^{5}\ m/s

Magnetic field, B=8.5\times 10^{-2}\ T

Magnetic force is given by :

F=q(v\times B)

q is the charge of proton, q=1.6\times 10^{-19}\ C

So,

F=1.6\times 10^{-19}\ C\times 2\times 10^{5}\ m/s\times 8.5\times 10^{-2}\ T

F=2.72\times 10^{-15}\ N

The direction of force is given by using right hand rule. So, the force will act in upward direction.

Hence, the correct option is (a) " 2.72\times 10^{-15}\ N to the north".

3 0
4 years ago
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