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PSYCHO15rus [73]
3 years ago
14

How many carbon atoms are in the smallest cyclic hydrocarbon?

Chemistry
2 answers:
kirza4 [7]3 years ago
8 0

Answer:3

Explanation:

SOVA2 [1]3 years ago
3 0
There are 3 carbon atoms
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A student mixes a 10.0 ml sample of 1.0 m naoh(aq) with a 10.0 ml sample of 1.0 m hcl(aq) in a polystyrene container. the temper
AleksAgata [21]
Hrxn = Q reaction / mol of reaction
mol of reaction = M * V = 10 * 1 = 10 mmol = 0.01 mol
Q water = m * C * (Tf - Ti)
             = (10 + 10) (4.184) (26-20) = 502.08 J
Q reaction = - Q water = -502.08 J
Hrxn = -502.08 / (0.01) = - 50208 J = - 50.21 kJ/mol
5 0
2 years ago
_____ are chemical substances that bind with a receptor and activate the receptor, much like a neurotransmitter does.
Viefleur [7K]

Answer:

Ligands

Explanation:

Ligands are small molecules that transmit signals in between or within cells. Ligands exert their effects by binding to cellular proteins called receptors.

8 0
2 years ago
What the correct answer?
alexandr402 [8]

B. Bleach and sea water should be identified as bases

Explanation:

  • The pH scale measures the acidic or basic nature of a substance.
  • Ranges from 0 to 14.
  • If pH is lower than 7 → the solution is an acid.
  • If pH is more than 7 → the solution is an basic or alkaline.
  • If a pH is a 7 it is neutral.

In the given question, the pH scale measures for bleach is 8 and for sea water it is 13. So, bleach is basic, not neutral and Sea water is basic too instead of acid. So, Bleach and sea water should be identified as bases.

3 0
3 years ago
T
svet-max [94.6K]

Explanation:

(1) The nucleus is positive and the electron cloud is positive.

(2) The nucleus is positive and the electron cloud is negative.

(3) The nucleus is negative and the electron cloud is positive.

(4) The nucleus is negative and the electron cloud is negative

4 0
3 years ago
Help me please I need to pass my exam
Troyanec [42]

Answer:

I think it is 1115 kJ but I don't see the answer

Explanation:

8 0
3 years ago
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