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Travka [436]
3 years ago
15

Please help me it is easy I will reward Brainliest

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

Answer:

Parallel Circuit

Amiraneli [1.4K]3 years ago
6 0
Answer: It is a parallel circuit.
Explanation: A series circuit doesn’t repeat itself as a parallel circuit does.
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How many H atoms are in 6.43g x 10^24 molecules of water
kow [346]

Answer:

12.86\times 10^{24} atoms of hydrogen

Explanation:

The molecular formula for a water molecule is H_2O.

From the above formula, we can conclude that 1 molecule of water contains 2 atoms of hydrogen and 1 atom of oxygen.

There are 6.43\times 10^{24} molecules of water.

1 molecule of water = 2 atoms of hydrogen.

∴ 6.43\times 10^{24} molecules of water = 2\times 6.43\times 10^{24}=12.86\times 10^{24} atoms of hydrogen.

Therefore, there are 12.86\times 10^{24} atoms of hydrogen in 6.43\times 10^{24} molecules of water.

5 0
3 years ago
According to Chargaff's Rule, if a segment of DNA contains 60 cytosine bases out of a total of 300 bases how many thymine bases
bija089 [108]

Answer:

90 Thymine bases

Explanation:

Chargaff's rules states that in the DNA of any organism, the amount of purine and pyrimidine bases must be in a 1:1 ratio. This means that the amount of Adenine and Guanine bases (purines) should be equal with their complementary pairs of Thymine and Cytosine bases respectively (pyrimidines). (A = T) + (G = C) = 100

Hence, according to this question, if there are 60 cytosine bases, this means that there will be 60 Guanine bases. 60 C + 60 G = 120 pyrimidines

300 total bases - 120 pyrimidine bases = 180 purine bases.

180/2 = 90 equal bases of Adenine and Thymine. Hence, Thymine bases will be 90.

3 0
3 years ago
1 point
Dafna1 [17]
I’m pretty sure it’s true :))!!
4 0
2 years ago
A colligative property of a solution is one that depends 1. on the identity of the solute and the concentration of the solution.
Tanzania [10]

Answer:

The correct answer is option 2.

Explanation:

Colligative property is defined as property which depends upon only on the numbers of particles of solute dissolved in definite amount of  solvent, It do not depend on the nature of the solute.

For example : NaCl solution with 0.4 molal will show same colligative properties as a that of the glucose solution with 0.04 molal concentration.

The following are the examples of colligative property:

1. Relative lowering of vapor pressure.

2. Osmotic pressure

3. Elevation in boiling points

4. Depression in freezing point

5 0
3 years ago
Which change in the state of matter is thermal energy released ​
ycow [4]

Answer:

Condensation

Explanation:

Thermal energy is released in this process

3 0
3 years ago
Read 2 more answers
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