1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
attashe74 [19]
3 years ago
11

1. what do you mean by human?

Chemistry
1 answer:
kirill [66]3 years ago
3 0

Answer:

1.a living creature who consumes everything from bio-diversity and eco-system .

2.humans can drink water from river&streams.

3.Yes,because water from river and streams are the source of many indigenous people where they get a water to drink,cook. also they can wash dishes ,take a bath,& take a water for their livelihood activities.

it is a running water too so the dirt they wash on it with run away and won't stay there.

You might be interested in
If a bonding pair of electrons is unequally shared between two atoms, the bond is
joja [24]
The answer is D. And if it is equally shared it is nonpolar covalent bond
4 0
3 years ago
Read 2 more answers
How does the law of conservation of matter apply to chemical equations?
Tasya [4]

Answer: option D.

The total number of atoms of each element on both sides of the

equation must be the same.

Explanation:

3 0
3 years ago
Explain why vanadium (radius=134 pm) and copper (radius=128 pm) have nearly identical atomic radii, even though the atomic numbe
Viktor [21]
<span>There are few main factors affecting the atomic radii, the outermost electrons and the protons in the nucleus and also the shielding of the internal electrons. I would speculate that the difference in radii is given by the electron clouds since the electrons difference in these two elements is in the d orbital and both has at least 1 electron in the 4s (this 4s electron is the outermost electron in all the transition metals of this period). The atomic radio will be mostly dependent of these 4s electrons than in the d electrons. Besides that, you can see that increasing the atomic number will increase the number of protons in the nucleus decreasing the ratio of the atoms along a period. The Cu is an exception and will accommodate one of the 4s electrons in the p orbital.

</span><span>Regarding the density you can find the density of Cu = 8.96g/cm3 and vanadium = 6.0g/cm3. This also correlates with the idea that if these two atoms have similar volume and one has more mass (more protons;  density is the relationship between m/V), then a bigger mass for a similar volume will result in a bigger density.</span>
7 0
3 years ago
Potassium (k combines with magnesium bromide (mgbr2 to form potassium bromide (kbr and magnesium (mg during a single replacement
Agata [3.3K]
In balancing reactions, the number of atoms on each side should be of equal number. It is the most important rule in reactions. Also, we should know the correct substances involved in the reaction. We do as follows:

2K + MgBr2 = 2KBr + Mg
5 0
3 years ago
Read 2 more answers
Mercury thermometers work because mercury ____ when it is warmed
kap26 [50]
Mercury expands when it is heated. This process is called thermal expansion.
5 0
3 years ago
Other questions:
  • what is the new pressure acting on a 2.5 l balloon if its original volume was 5.8 l at 3.7 ATM of pressure
    5·1 answer
  • ?cobalt has a density of 8.90 g. what volume would 17.8 g of Cobalt occupy?
    15·1 answer
  • 13,000. cm has how many significant figures?
    7·2 answers
  • how do modern tools such as Doppler radar satellite weather balloons and computers help meteorologist understand weather
    11·1 answer
  • PLEASE HELP!! I GIVE BRAINLIEST
    12·1 answer
  • A student makes several observations about a piece of iron. Which observation describes a chemical property of the iron?
    12·1 answer
  • Okay this is not school related but how do you not fall for some one so hard .
    13·1 answer
  • Birds' feet change slowly over time, depending on their habitat. Ptarmigans live in snowy areas and eat pine needles, twigs, and
    14·1 answer
  • PLEASE!!!
    6·1 answer
  • Nitrogen gas was collected by water displacement. What was pressure of the N, collected if the temperature was 22 °C?​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!