Alkali metals react violently with water to form metal ions, hydroxide ions, and

1 answer:

7 0

Alkali metals displace Hydrogen from H2O in order to make the Hydroxide ion, the displaced Hydrogen is formed as H2 gas.

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Which two elements, in looking at their atoms, have a total of 51 protons between them?

saul85 [17]

Answer:

Atomic Mass 121.76 atomic mass units

Number of Protons 51

Number of Neutrons 71

Number of Electrons 51

9 more rows

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3 years ago

. One function of the circulatory system is to help maintain a uniform body temperature. Explain how the constant circulation of

Effectus [21]

Answer:

Capillaries are the blood vessels with the smallest diameter and those closest to the surface of the skin. The blood that circulates through them is therefore closer to the outside air than the blood in the rest of our blood vessels. As the capillary dilates, a greater amount of blood is exposed to the air, which allows it to cool down and our body temperature to be maintained.

Explanation:

Blood is a solution where solutes and cells are found and that participates in homeostatic mechanisms such as the control of body temperature, helping to regulate respectively the preservation and elimination of heat. Blood vessels are the routes of the cardiovascular system, which are responsible for being a means of transport for blood with and without oxygen that reaches all tissues and returns to the heart. In very hot weather, surface thermoreceptors signal the brain that something needs to be done to dissipate heat. For this reason, a vasodilation process is activated, which allows blood to flow to the outermost layers of the skin. This promotes a heat exchange with the environment, which helps the individual to lower their body temperature. Cold causes a decrease in blood flow by reducing the size of the vessel (arteries or veins) through which blood and other substances circulate. By reducing the size of the vessel, the substances that circulate in the blood are also reduced. The heat causes an increase in the size of the blood vessels, which generates greater transport of nutrients through the blood.

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3 years ago

Match the appropriate food item with the indicator chemical you would use to detect the principal organic molecule present in th

Valentin [98]

Answer:

raspberry jam - benedict's solution

honey - benedict's solution

ground turkey - biuret reagent

oatmeal - iodine

Explanation:

Benedict's test is a test used to confirm simple carbohydrates. it helps in identifying reducing sugars that have free ketone or aldehyde functional groups. Raspberry jam has mainly carbohydrates that can be tested by this indicator.

An iodine test is for the determination of starch which is a non-reducing sugar such as oatmeal

Sudan IV (C24H20N4O) is used for the presence of staining of lipids, triglycerides and lipoproteins. There is no food item given that has a proper amount of fat or lipid

Beuret reagent is a protein testing reagent that shows the presence of the protein. Ground turkey has a huge amount of protein that can be indicated by this

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3 years ago

Which of the three balls pictured below have gravitational potential energy.

kumpel [21]

Answer:

i believe the basketball falling from the net

Explanation:

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3 years ago

One advantage of having a cloned flock

Cerrena [4.2K]

It eliminates certain genetic diseases or bad traits for the flock.