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steposvetlana [31]
3 years ago
15

How much energy is released when 18.0 g of water at 0°C changes from liquid to solid?

Chemistry
1 answer:
yaroslaw [1]3 years ago
7 0
I love you too funny I love you too
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GUYS I REALLY NEED THIS ASAP!!!!!​
Nastasia [14]

Answer:

I don't think so

Explanation:

The equation doesn't look balanced

8 0
3 years ago
Match the scientist with their achievement:
Tju [1.3M]

Answer:

<u>Frederich Miescher</u>- first person to isolate DNA and RNA

<u>Frederick Griffith</u>- first to demonstrate horizontal transmission of dna using bacteria

<u>Gregor Mendel</u>- documented and demonstrated inheritance patterns

Thomas Hunt Morgan- identified chromosomes as the structures responsible for inheritance

<u>Joachim Hammerling</u>- demonstrated that the hereditary information of of eukaryotes is contained within the nucleus

<u>Alfred Hershey and Martha Chase</u>- demonstrated that dna not protein was the molecule responsible for hereditary

<u>George Beadle and Edward Tatum</u>- used mutants to show the relationship between DNA and proteins

<u>Albrecht Kossel</u>- characterized the structure of adenine, guanine, cytosine, thymine, and uracil

Explanation:

Hope this helps! Pls give brainliest!

5 0
2 years ago
How do producers and consumers get energy from the sun?
Marysya12 [62]

Answer: In photosynthesis, producers combine carbon dioxide, water, and sunlight to produce oxygen and sugar (their food). Other organisms get energy by eating producers. ... It cannot directly use the Sun's energy to make food. As a consumer, it has to eat— or, consume— other organisms for energy.

Explanation: Thats how both producers and consumers get energy

6 0
3 years ago
17. Which of the following is NOT an empirical formula? *
Aloiza [94]

Answer: 17) d. C_2H_6

18. c. The empirical formula of a compound can be twice the molecular formula.

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.  

To calculate the molecular formula, we need to find the valency which is multiplied by each element to get the molecular formula.

The equation used to calculate the valency is:

n=\frac{\text{molecular mass}}{\text{empirical mass}}

The empirical mass can be calculated from empirical formula and molar mass must be known.

17. Thus the empirical formula of C_2H_6 should be CH_3

18. The molecular formula will either be same as empirical formula or is a whole number multiple of empirical formula. Thus the empirical formula of a compound can never be twice the molecular formula.

3 0
3 years ago
Read 2 more answers
In which structure does photosynthesis occur?
zhenek [66]

Answer:

b

Explanation:

kloroplast

8 0
3 years ago
Read 2 more answers
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