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Andrews [41]
3 years ago
13

Animals need food air and water.which of the following is another need of animals

Chemistry
2 answers:
Readme [11.4K]3 years ago
6 0

Answer:

a habitat

Explanation:

Law Incorporation [45]3 years ago
3 0

a sanctuary could be one of them

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An atom that has 13 protons and 15 neutrons is element
ololo11 [35]

Answer:

you are correct

Explanation:

i double checked u are correct :D

4 0
3 years ago
You are trying to determine the volume of the balloon needed to match the density of the air in the lab. You know that if you ca
asambeis [7]
Answer is: <span>volume of balloon is </span>476,85 cm³.
density of air: d(air) = -0,0043 · 18,0°C + 1,2874.
d(air) = 1,21 kg/m³ = 1,21 · 10³/ 10⁶ = 0,00121 g/cm³.
m(balloon) = 0,577 g.
d(balloon) = d(air).
d(balloon) = m(balloon) ÷ V(balloon).
V(balloon) = m(balloon) ÷ d(balloon)
V(balloon) = 0,577 g ÷ 0,00121 g/cm³.
V(balloon) = 476,85 cm³.
8 0
3 years ago
Which substance is a type of biomolecule that can be used for energy storage and insulation? O A. Nucleic acid O B. Carbon dioxi
Gnom [1K]

Answer:

Protein

Explanation:

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4 0
3 years ago
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Give the formula of the conjugate base of HSO4–
mr Goodwill [35]
The answer is So^2-4
7 0
3 years ago
An isotope with a mass number of 193 has 116 neutrons. What is the atomic number of this
Zinaida [17]

Answer:

Atomic number of this  isotope = 77

Explanation:

Given that,

Mass number = 193

No of neutrons = 116

We need to find the atomic no of this isotope.

We know that,

Atomic mass = No of protons + No. of neutrons

Also, atomic no = no of protons

So,

Atomic mass = atomic no + No. of neutrons

⇒ Atomic no = Atomic mass - no of neutrons

Atomic no = 193 - 116

Atomic no = 77

Hence, 77 is the atomic no of the isotope.

6 0
3 years ago
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