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Ksivusya [100]
3 years ago
6

Please help it’s a test

Chemistry
1 answer:
photoshop1234 [79]3 years ago
3 0

Answer:

12.01

Explanation:

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Complete the nuclear equation<br><br> 42 K → 0 e <br>19____-1
kenny6666 [7]

Answer:

42 19 K→42 20 Ca+e−

Explanation:

Naturally-occurring potassium atoms have a weighted average atomic mass of 39.10 (as seen on most modern versions of the periodic table.) Each potassium atom contains 19 protons p+ and thus an average potassium atom contains about 39.10−19≈20 neutrons n0.

This particular isotope of potassium-42 contains 42 nucleons (i.e., protons and neutrons, combined;) Like other isotopes of potassium 19 out of these nucleons are protons; the rest 42−19=23 are therefore neutrons.

5 0
3 years ago
What is Rubisco and its relationship to photosynthesis?
xenn [34]

Rubisco is a super important enzyme in plants that first captures CO2 to begin the process of the Calvin cycle. It's the most important enzyme by far because it starts the entire process of Carbon Fixation.

8 0
4 years ago
Which of the following provides the best description of the function of genes?
Schach [20]

Answer:

D. Controlling the production of specific proteins.

Explanation:

Genetic material is the main thing that inherited from parents to their offsprings. Gene encodes proteins that will be expressed(produced) when it needed. The protein can be used to build the cell organ, enzyme enzyme that digest food, hormones, and many other things. By inheriting the gene, the offspring will have a similar traits to the parent. The trait can differ a lot for sexual reproduction since only half of each parent gene inherited to the offspring.

5 0
4 years ago
What is the pH of an aqueous solution with [H3O+] = 6×10−12 M ?
hram777 [196]

Answer: pH = 10.92

Explanation:

To determine the pH of an aqueous solution, we use the following mathematical relation; pH = - log [H3O+]

                                           = - log (6 x 10∧ -12)

                                           = 12 - 1.08

                                   pH =  10.92

                                           

4 0
3 years ago
If you mix the two liquids, propanol and vegetable oil, are they miscible or immiscible?
Free_Kalibri [48]

Answer:

it would be immiscible

Explanation:

They would not mix similar to oil and water

7 0
3 years ago
Read 2 more answers
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