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Vlad1618 [11]
2 years ago
5

Question 9 of 10

Chemistry
1 answer:
aksik [14]2 years ago
7 0

Answer:

The answer is B an open system allows energy and mass to move in and out of it

Hope it helps

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_____ chemical reactions need a certain amount of activation energy to get started.
Anettt [7]

Answer:all

Explanation:

Because a reaction does not starts by itself unless some force is applied

3 0
3 years ago
4. "Metals are conductor of electricity"prove​
Nikolay [14]

Answer:

Hey mate.......

Explanation:

This is ur answer......

<em>Metals are an excellent conductor of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions.</em>

Hope it helps!

mark me brainliest pls......

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8 0
3 years ago
4. If the DNA nitrogen bases were TACCGGAT, how would the other half of
Illusion [34]

Answer:

<u>ATGGCCTA</u>

Explanation:

For this we have to keep in mind that we have a <u>specific relationship between the nitrogen bases</u>:

-) <u>When we have a T (thymine) we will have a bond with A (adenine) and viceversa</u>.

-) <u>When we have C (Cytosine) we will have a bond with G (Guanine) and viceversa</u>.

Therefore if we have: TACCGGAT. We have to put the corresponding nitrogen base, so:

TACCGGAT

<u>ATGGCCTA</u>

<u></u>

I hope it helps!

3 0
3 years ago
I didn’t study for this lol if your answer correct I’ll mark ur answer brainliest
kotykmax [81]

Answer:

3

Explanation:

3 is the answer is did this a little while ago

4 0
3 years ago
Suppose you wanted to make 100 grams of water. A. What is the molar mass of water (H2O)? B. How many moles of water are in 100 g
Gemiola [76]
I need to answer more
4 0
3 years ago
Read 2 more answers
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