Answer:
2 i think i am not very good at this lol
Explanation:
The units that acceleration use are distance/time^2 (in metric units).
The acceleration is the change of velocity over time, so
In another way, if the velocity is constant, the acceleration is zero, but if the velocity change over the time (as a car do when the red light change), the acceleration takes value!.
60%
Explanation:
The percentage of water on an average that living organisms have is 60%.
Water is an important component of all living organism due to its very unique property to dissolve many substances and carry them in it.
Water is essential in all life and life physiological functions.
learn more:
biogeochemical cycle brainly.com/question/3509510
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Answer:
0.1g/ml
Explanation:
0.1 g/ml = 100kg/m³
The difinition of density is mass per volume.
⇒So you have 5 grams of water which occupies a volume of 50 milliliters. This gives us : 5g / 50ml = 0.1g/ml
In Si- units 0.1g/ml = 100kg/m³
For a neutralization reaction, the value of q(heat of neutralization) is doubled when the concentration of only the acid is doubled.
A neutralization reaction is a reaction in which an acid reacts with a base to yield salt and water. Ionically, a neutralization reaction goes as follows; H^+(aq) + OH^-(aq) ------> H20(l).
The heat of neutralization (Q) of the system depends on the concentration of the solutions. Since Q is dependent on concentration, if the concentration of any of the reactants is doubled, more heat is evolved hence Q is doubled.
Learn more: brainly.com/question/10323185
Answer:
The nucleus is positively charged because it contains all of the protons however the charge of an atom is neutral because there is an equal amount of protons (positive) and electrons (negative) meaning the opposite charges cancel each other out therefore making the atoms overall charge neutral.
Explanation: