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RoseWind [281]
3 years ago
7

Plz help ASAP Dhdhdg

Chemistry
1 answer:
Alborosie3 years ago
5 0

Answer:

They have the same number of Valence electrons

Explanation:

<em>Hello?</em>

The valence electrons are the one responsible for chemical reaction. Valence electrons are the electrons found/located on the outermost energy level.

<em>I </em><em>hope</em><em> </em><em>this </em><em>helps.</em><em> </em><em>Have</em><em> </em><em>a </em><em>nice </em><em>studies</em>

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[H+] = 2.5 x 10-10 M<br> What’s the pH
Reika [66]

Answer:

9.6

Explanation:

pH = - log[2.5*10^{-10}]= 9.6

6 0
3 years ago
A horse was 6,200 meters north of a barn. For 22.5 minutes, the horse ran toward the barn at 152 meters per minute. In that time
lutik1710 [3]

3420‬m

Explanation:

Given parameters:

Length of path = 6200m

time taken for the horse to run = 22.5min

speed = 152meters/minute

Unknown:

Distance run by the horse = ?

Solution:

Speed is the rate of change of distance with time.

   Speed       =    \frac{distance}{time}

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learn more:

Speed          brainly.com/question/5424148

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6 0
3 years ago
You need 4.0 ounces of a steroid ointment. if there are 16 oz in 1 lb, how many grams of ointment does the pharmacist need to pr
Bond [772]

The given units are the units of masses which are interconvertable.

It is given that:

1 lb = 16 oz

Now, converting kg to lb:

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Now converting kg to g:

Since, 1 kg = 1000 g

So, \frac{0.0625 lb}{1 oz}\times \frac{1 kg}{2.20462 lb}\times \frac{1000 g}{1 kg} = 28.349 \frac{g}{oz}

For 4 oz:

28.349\frac{g}{oz} \times 4 oz = 113.396 g

Thus, 113.396 g of ointment needed to be prepared by the pharmacist.


6 0
3 years ago
How many millions of years ago did the earliest marine reptiles evolve from land reptiles?
Nezavi [6.7K]
Roughly 240 million years ago
6 0
3 years ago
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Describe how the metal probably increases the reaction rate, identify whether this is an example of homogeneous or heterogeneous
Lisa [10]

Answer:

The metal probably increases reaction rate by either holding reactant molecules in the correct orientation to react or by weakening or breaking bonds in reactant molecules to make them more reactive.

This is an example of heterogeneous catalysis.

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Explanation:

got it right :)

8 0
3 years ago
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