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kodGreya [7K]
3 years ago
8

Animals that put all their weight on one toe are able to run more quickly across smooth, solid ground. Shortly after grasslands

appeared, horses adapted to eating grass. How would running quickly probably have been an advantage to the horse's ancestors?
Chemistry
1 answer:
Verizon [17]3 years ago
8 0

Answer:

It allowed them to escape predators

Explanation:

Since horses eat grass, they do not need to chase down prey as predators do or beat others to food as scavengers do. They do, however, need to escape predators.

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Which household items are usually made of metal elements?
Rus_ich [418]

a=electronic equipment and jewelry

5 0
3 years ago
Fe3+(aq)+6H2O(l)⇌Fe(H2O)63+(aq) : F e 3 + ( a q ) + 6 H 2 O ( l ) ⇌ F e ( H 2 O ) 6 3 + ( a q ) : blank is the Lewis acid and bl
Tasya [4]

Answer:

Lewis acid- Fe3+

Lewis base- water molecule

Explanation:

Acids and bases have been defined in diverse ways. There have been definitions put forward by Arrhenius, Brownstead and Lowry as well as Lewis. Each definition his useful in its own way.

Lewis acids are lone pair acceptors such as metal ions. This implies that in the particular instance of this reaction, Fe3+ is the lewis acid.

Similarly, a Lewis base is a lone pair donor, all ligands are lone pair donors since they donate one or more lone pairs of electrons to Lewis acids. In the particular instance of this reaction, the Lewis base is the water molecule.

6 0
3 years ago
Many of water's emergent properties, such as its cohesion, its high specific heat, and its high heat of vaporization, result fro
erastova [34]

Answer: are electrically attracted to each other

Explanation:Water molecules are attracted to each other by partial negative and positive charges on the oxygen and hydrogen atoms, respectively

6 0
3 years ago
Read 2 more answers
I will give out brainlist, Needdddddd ASAPPPPpp
zalisa [80]

Answer: A. the ideal gas law is PV=n RT

Explanation:

3 0
3 years ago
If is found that 24.68 mL of .1165 M NaOH is needed to titrate .2931 g of an unknown acid to the phenolphthalein end point. Calc
Lemur [1.5K]

Answer: The equivalent mass of the acid is 83.16 grams

Explanation:

To calculate the number of moles for given molarity, we use the equation:

\text{Moles of solute}={\text{Molarity of the solution}}\times{\text{Volume of solution (in L)}}  

Molarity of NaOH solution = 0.1165 M

Volume of NaOH solution = 24.68 mL = 0.02468 L

Putting values in equation 1, we get:

\text{Moles of} NaOH={0.1165M}\times{0.02468L}=2.875\times 10^{-3}moles=2.875\times 10^{-3}geq    

( as acidity of NaOH is 1)

For end point:  gram equivalents of acid =  gram equivalents of base = 2.875\times 10^{-3}

Mass of acid=gram equivalents\times {\text {Equivalent mass}}

0.2391=2.875\times 10^{-3}\times {\text {Equivalent mass}}

{\text {Equivalent mass}}=83.16g

Thus equivalent mass of the acid is 83.16 grams

5 0
4 years ago
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