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aliina [53]
3 years ago
6

Two out of the three domain groups include prokaryotic organisms true or false

Chemistry
1 answer:
juin [17]3 years ago
5 0

Answer:

True, there’s Prokaryotic and Eukaryotic

Explanation:

Eukaryotic are more complex and HAVE a nucleus, Prokaryotic are less complex and don’t have a nucleus

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How many times more hydroxide ions are there in a solution with a ph of 9 than in a solution with a ph of 3?
cestrela7 [59]
The pH unit has 10x as many hydrogens ions as the unit above.
Ex: A pH of 5 would have 10x more hydrogen ions than a pH of 6 
and 100x more than if it had a pH of 7.
With a pH of 9 and 3, this is equivalent to 10⁶
So your answer should be:
1,000,000


4 0
3 years ago
Sodium (Na) A Homogeneous Mixture B Element C Compound D Heterogeneous Mixture
laiz [17]
Sodium is categorized as a B. Element.
3 0
3 years ago
2. The diagram below shows steps in the exothermic chemical reaction of bromomethane with
vovangra [49]

Answer:

Here's what I get  

Explanation:

1. Balanced equation

HQ⁻ + CH₃-Br ⟶ HQ-CH₃ + Br⁻

(I must use HQ because the Brainly Editor thinks the O makes a forbidden word)

2. Mechanism

HQ⁻ + CH₃-Br ⟶[HQ···CH₃···Br]⁻⟶ HQ-CH₃ + Br⁻

        A                           C                         B

The hydroxide ion attacks the back side of the carbon atom in the bromomethane (A).

At the same time as the Q-H bond starts to form, the C-Br bond starts to break.

At the half-way point, we have a high-energy intermediate (C) with partially formed C-O and C-Br bonds.

As the reaction proceeds further, the Br atom drops off to form the products — methanol and bromide ion (B).

3. Energy diagram

See the diagram below.

 

8 0
3 years ago
If it requires 48.3 milliliters of 0.55 molar nitric acid to neutralize 15.0 milliliters of barium hydroxide, solve for the mola
Gemiola [76]
First you have to moles so multiply .0483L X .55M= .026565 Multiply moles by mole ratio which is 1/2, so the moles becomes .013283 now molarity=moles/volume; divide .013283/.015L=.885533M significant figures and you final answer is 0.89M
8 0
3 years ago
Read 2 more answers
I. Witch direction does the electric field point at a position directly west of a positive charge
RUDIKE [14]

Answer:

The answer is North

Explanation:

The direction of the field is taken to be the direction of the force it would exert on a positive test charge.

5 0
3 years ago
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