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8090 [49]
3 years ago
13

Help someone!!!I will mark you brainliest

Chemistry
2 answers:
o-na [289]3 years ago
7 0

Answer:

a) Na2S

b) AlF3

c) O2

d) C6H12O6

Explanation:

please mark me brainliest and 5 star

iVinArrow [24]3 years ago
4 0
A) Na2S
b) AlF3
c) O2
d) C6H12O6
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Which of the following characteristics describes aerobic organisms.
horsena [70]

Answer: Option (3) is the correct answer.

Explanation:

Aerobic organisms are the organisms which survive and grow in the presence of oxygen.

When oxidation of glucose occurs in the presence of oxygen then it is known as aerobic respiration.

In aerobic respiration, food releases energy to produce ATP which is necessary for cell activity. There is complete breakdown of glucose in aerobic respiration that is why more energy is released. Therefore, aerobic organisms become active.

Thus, we can conclude that characteristics very active, efficient use of energy describes aerobic organisms.

6 0
4 years ago
Can you please answer questions regarding valence electrons?
Natasha2012 [34]
Phosphorus has 5 valence
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4 0
3 years ago
Help!!!
Vedmedyk [2.9K]

Answer:

3.213J/mol

Explanation:

first specific heat capacity of water = 4200J/Kg K

Q=mass×temperature difference×specific heat capacity

Q=1.53×(24.3-20)×4200

Q=25.704 J

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8 0
3 years ago
8. How many protons are in C-12? C-13? C-14?
NISA [10]
C-12? (6 protons) C-13? (6 protons) C-14? (6 protons)

5 0
3 years ago
How do you know which to pick?
mamaluj [8]

Answer:

\boxed{\text{(C)}}

Explanation:

The solid consists of positive and negative ions, so it is an ionic solid.

Ionic solids are brittle, usually water-soluble, and poor thermal conductors as solids. Thus, the correct answer is \boxed{\textbf{(C)}}.

(A) is wrong. It describes a covalent solid, which is soft and always a poor conductor.

(B) is wrong. It describes a covalent solid, which is also low-melting.

(D) is wrong. It describes a metal, and a metal does not contain negative ions.

8 0
4 years ago
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