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jeka94
3 years ago
12

In an ecosystem, there are many factors that affect how many organisms can survive them. Which of the following is one of those

factors?
A. color of flowering plants
B. number of times humans have seen the area
C. availability of water
D. age of mammal species
Chemistry
2 answers:
Aleks04 [339]3 years ago
8 0
I think it is C, because water is essential to living...
Free_Kalibri [48]3 years ago
4 0
C is the answer because animals and plants need water.
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According to the label on a bottle of concentrated hydrochloric acid, the contents are 36% by mass and have a density of 1.138g/
elixir [45]

Answer:

1.42 Kg of NaHCO3

Explanation:

From

Co= 10 pd/M

Where;

Co= concentration of the stock solution of acid

p= percentage of raw acid = 36%

d= density of the acid= 1.138g/mL

M= molar mass of the acid= 36.5 g/mol

Co= 10 × 36 × 1.138/36.5

Co= 11.22 M

Number of moles of acid= CV = 11.22 M × 1.508 L= 16.9 moles

The reaction equation is;

NaHCO3(aq)+HCl(aq)→NaCl(aq)+H2O(l)+CO2(g)

If 1 mole of NaHCO3 reacts with 1 mole of HCl

Then 16.9 moles of HCl reacts with 16.9 moles of NaHCO3

Hence 16.9 moles of NaHCO3 is required to neutralize the HCl.

From

n= m/ M

Where;

n= number of moles = 16.9

m= mass of NaHCO3= ??

M= molar mass of NaHCO3= 84.007 g/mol

m= n× M/1000

m= 16.9 × 84.007 /1000

m= 1.42 Kg

7 0
3 years ago
Paraphrase this quote, “Sometimes you have to go up really high to understand how small you really are.”
Helga [31]

Answer:

Sometimes you just have to get yourself hard to understand what you are really going through and how much you have done and how hard you are.

Explanation:

Tbh not all quotes are easy to express but this one sounds really interesting.

But in my opinion this is the best I could describe

Hope you agree. Let me know :)

3 0
3 years ago
suppose you find a website that describes the rusting of a nail as a change to only the physical properties of iron. Would that
enot [183]

Answer is no

The chemical reaction between iron and oxygen in the presence of moisture or water produces a new substance, which is the rust (iron oxide). In this case, it shows a chemical property.

8 0
4 years ago
Mixing a cocktail is it a physical or chemical change
sergiy2304 [10]
It is a physical change.
3 0
3 years ago
Milk of Magnesia is a type of medication people can take to help with heartburn and indigestion cause by stomach acid.
Burka [1]

Answer:

This substance is basic.

Explanation:

The milk of Magnesia, a type of medication which can help people with heartburn and with a pH of 10.5 is a basic solution.

  • Bases are certain metallic oxides, metallic hydroxides and aqueous ammonia.
  • They have the following properties:
  1. On the pH scale, they have a value between 7-14
  2. They turn red litmus paper blue.
  3. Bases are electrolytes.
  4. They have a bitter taste.
  5. They are soapy or slippery to feel.
6 0
3 years ago
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