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3 years ago

A protein denatures when you cook it at 60°C. What is that temperature on the

Chemistry

1 answer:

seropon [69]3 years ago

7 0

Answer:

333K

Explanation:

Answer is actually 333.15, but to round it off, is 333

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If the half life of a radioactive isotope is 1 day, then how much of the original isotope remains at the end of two days?

ikadub [295]

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25%

Explanation:

In a half life of a radioactive isotope is 1 day,it means it loses its half mass each day

We a formula for N half life

$\sf { \frac{1}{2} }^{n}$

where n is the number of days

Here the isotope is kept for 2 days

so it's left over mass will be

$\sf { (\frac{1}{2}) }^{2} \\ \\ \\ \frac{1}{2} \times \frac{1}{2} \\ \\ \sf \frac{1}{4}$

It's left over mass 1/4th of the original mass

Now, we need to find it's percentage by multiplying with 100

$\sf \frac{1}{4} \times 100 \%\\ \\ \sf \cancel\frac{100}{4} \% \\ \\ \sf 25\%$

So 25% mass will be left after 2 day of half life radioactive isotope.

8 0

2 years ago

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ATOMS, help me with this, and thank you for your help

ASHA 777 [7]

Answer:

I think it’s 8 not sure

Explanation:

3 0

3 years ago

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Which one? Please help me thank you

Tomtit [17]

the correct answer is option d.

6.67*10-3 hrs

7 0

4 years ago

What is the mass of 23.2 moles of Gallium atoms?

Effectus [21]

Explanation:

1 grams Gallium to mol = 0.01434 mol

10 grams Gallium to mol = 0.14342 mol

20 grams Gallium to mol = 0.28685 mol

30 grams Gallium to mol = 0.43027 mol

40 grams Gallium to mol = 0.5737 mol

50 grams Gallium to mol = 0.71712 mol

100 grams Gallium to mol = 1.43425 mol

200 grams Gallium to mol = 2.86849 mol

6 0

3 years ago

Helppp will give brainlist

NikAS [45]

For #7, both hydrogen and oxygen are nonmetals, making it not A,

B would be the correct answer

For #8, chemical properties is the characteristic of a substance observed in a chemical reaction, A and B would be physical. C would be correct

hope this helped

6 0

3 years ago

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