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djyliett [7]
3 years ago
10

PLZZZ HELP CHEM!!!!!!! Easy points!!!!!

Chemistry
2 answers:
kramer3 years ago
7 0

Answer:

OH-

Explanation:

An Arrhenius base is any species that increases the concentration of

OH

Goryan [66]3 years ago
3 0

Answer:

H+

Explanation:

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A) Climate

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What is solar energy?
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Solar energy is energy from the sun converting it to thermal or electric energy. It is renewable resource meaning it will never die out. It is also called radiant energy.

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Fluorine-18 is a positron emitter used in pet scans. write a balanced nuclear equation for the reaction.
kow [346]
<span>Due to limitations on typography, I will have to describe the equation instead of actually writing it. Crude appearance. 18 18 0 F --> O + e 9 8 1 Detailed description. Each of the 3 components have both a left superscript and a left subscript which is a superscript and a subscript to the LEFT of the main figure unlike the usual right side that you see subscripts and superscripts. The equation will be F with an 18 left superscript and a 9 left subscript to represent Florine with atomic weight of 18 and 9 protons. Followed by a right arrow to indicate the direction the reaction is going. Followed by the letter O with a left superscript of 18 and a left subscript of 8 to represent Oxygen with atomic weight of 18 and 8 protons. Followed by a plus sign to indicate more. Followed by either the lower case letter "e" or the upper case Greek character beta with a left superscript of 0 and a left subscript of 1 or +1 to represent the positron being emitted with a positive charge and an atomic weight of 0.</span>
5 0
3 years ago
Read 2 more answers
1. Imagine that you need to take a medicine that the doctor has prescribed for you. Explain why scientists who developed that me
ella [17]

Answer: The compound in medicines should be non polar.  

It is important for any drug to be able to dissolve itself through the cell membrane which consists of a lipid bi-layer, in order to diffuse in the body and circulate biologically, performing its function.

Non polar compounds are lipid soluble and therefore can dissolve in the lipid layers.

Polar compounds are water soluble and fail to cross the cell membrane.

Therefore scientists need to be sure of using compounds that are non polar in nature so they pass through the cell membrane and enter into the blood circulation of the body and perform its due function.

Explanation:

6 0
3 years ago
1. How many molecules are in 643.21 grams of
Veronika [31]

Answer: Calculate the molar mass of Mg3(PO4)2 in grams per mole or search for a chemical formula or substance.

Missing: 643.21 ‎ Must include: 643.21. A balloon is filled with 36.2 liters of Cl2 gas at STP. How many moles of chlorine gas are inside? Solution: 36.2

Missing: 4.061 ‎Must include: 4.061 .For H2O, there is one atom of oxygen and two atoms of hydrogen. A molecule can be made of only one type of atom. In its stable molecular form, oxygen exists as two atoms and is written O2. to distinguish it from an atom of oxygen molecule of three oxygen atoms, in grams per mole or search for a chemical ... Did you mean to find the molecular weight of one of these similar formulas- 80.34.

Explanation: PLEASE MARK ME AS BRAINLIEST!

3 0
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