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Tresset [83]
3 years ago
13

Enzymes are proteins that speed up chemical reactions in the body how do they work

Chemistry
1 answer:
Mila [183]3 years ago
5 0
The answer would be D, Enzymes<span> are soluble </span>protein<span> molecules that can </span>speed up chemical reactions<span> in cells. </span>These reactions<span> include respiration, photosynthesis and making new </span>proteins<span>. For this reason </span>enzymes<span> are sometimes called biological catalysts.</span>
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1) will water boil at 100 degrees celsius whether it has 20 mg or 200 mg of weight?
aleksley [76]

Answer:

yes water boils at 100 degree Celsius but the boiling point water is different at different place because of the altitude of that place. For example boiling point of water is 96 decree Celsius.

No the 2 solutions don't boils at same time. it's because of their volume.

if the volume is more then it takes more time to boli. and vice versa

8 0
3 years ago
Which items are used to show elevation, relief, and slope on a topographic map? Check all that apply. topographic lines contour
Sergio [31]

Answer:

contour lines

index contours

contour interval

Explanation:

4 0
2 years ago
Read 2 more answers
Identify a chemical reagent used in this experiment that can be used to distinguish solid CaCl2 (soluble) from solid CaCO3 (inso
stiks02 [169]
A chemical reagent that is used in this experiment is silver nitrate (AgNO3). It is used to distinguish calcium chloride and calcium carbonate. when this reagent is used, silver from silver nitrate reacts with Chloride to calcium chloride and forms silver chloride, making a precipitates of white color.
6 0
3 years ago
Read 2 more answers
Adding heat and increasing concentration are meant to cause an increase in....?
asambeis [7]

Answer:

Adding heat and increasing concentration are meant to cause an increase in the rate of a reaction

Explanation:

The rate of a chemical reaction is defined as the number of moles of reactants converted or products formed pee unit time. It is a measure of how quickly the reactants in a given reaction are used up to form products or how quickly products are formed from reactants.

Factors that affect the rate of a chemical reaction include:

1. Nature of reactants

2. Concentration/pressure (for gases) of reactants

3. Temperature of reaction mixture

4. Presence of light

5. Presence of a catalyst

The effect of increasing the concentration of reactants for a given chemical reaction is that the reaction rate will increase. This is so because, according to the collision theory of chemical reactions, the frequency of collision between reactant particles which results in a chemical reaction (effective collisions) will increase when the reactant particles are crowded together in a small space due to an increase in their concentration.

The effect of increasing temperature or adding heat to a reaction is that the reaction rate increases. When the heat is added to a reactant particles, the number of particles with energies greater than or equal to the activation energy (the minimum amount of energy that reactant particles must possess for effective collisions) increases. Also, the average speed of the reactant particles increases resulting in a greater frequency of collision. Hence, the rate of the chemical reaction increases.

4 0
3 years ago
assume that a water balloon has the same number of water molecules as a helium balloon has helium atoms. If the mass of the wate
Aloiza [94]

Answer : The mass of the water molecule is 4.5 times greater than the mass of the helium atom.

Explanation :

Assumption : The number of water molecules is equal to the number of helium atoms

Given : The mass of water = 4.5 × The mass of helium     ........(1)

The mass of Water = Mass of 1 water molecule × Number of water molecule

The mass of Helium = Mass of 1 helium atom × Number of helium atom

Now these two masses expression put in the equation (1), we get

Mass of 1 water molecule × Number of water molecule = 4.5 × Mass of 1 helium atom × Number of helium atom

As per assumption, the number of water molecules is equal to the number of helium atoms. The relation between the mass of water molecule and the mass of helium atom is,

Mass of water molecule = 4.5 × Mass of helium atom

Therefore, the mass of the water molecule is 4.5 times greater than the mass of the helium atom.

3 0
3 years ago
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