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Murrr4er [49]
3 years ago
5

What are 4 properties that krypton has?

Chemistry
2 answers:
Nuetrik [128]3 years ago
5 0
<span><span>Atomic number36,</span><span>Atomic mass<span>83.80 g.mol -1,</span></span><span>Density<span>3.73 10-3 g.cm-3 at 20°C,</span></span><span>Melting point- 157 °C,</span><span>Boiling point<span>- 153° C</span></span></span>
Sliva [168]3 years ago
5 0
It's colorless, odorless, fast response to electric currents, non toxic and its a rare atmospheric gas
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Sophie [7]

Answer:

hi.

Explanation:

1. B

2. C

3. A

4. B

5.B

hope this helps

5 0
3 years ago
What do you think will happen to the Kool-Aid drink after it is boiled? CER(Claim,CITE evidence and reasoning) response THANK U
mafiozo [28]

Answer:

It is just sugar decomposing to a dark tar looking goo.

Explanation:

Cite: What happens after you boil kool-aid

4 0
2 years ago
How many moles of atoms are there in 8.814 ×10^23 atoms Ne?
Katen [24]

Answer:

3

Explanation:

6 0
3 years ago
Read 2 more answers
Which statements about allosteric enzymes are true?
Ainat [17]

Answer:

1,2 and 4 are correct

Explanation:

Enzymes that show cooperativity are defined as Allosteric enzymes. This cooperativity is of several types.

1) homotropic/homoallestery - positive cooperation

2) heterotropic/heteroallestery - negative cooperation

Activity of allosteric enzymes is regulated by other molecules (effector molecules)

Hence, statement 1 and 2 are correct.

Binding curve of allosteric enzymes:

For cooperative binding, binding curve is Sigmoidal curve

For non cooperative binding, binding curve is Hyperboilc curve.

Hence, statement 3 is wrong.

Allosteric enzymes have multiple active sites.

Allosteric enzymes are often multi sub unit proteins.

Hence, statement 4 is correct.

4 0
3 years ago
how much heat is required to raise the temperature of a 5.45-g sample of iron (specific heat = 0.450 j/g°c) from 25.0°c to 79.8°
Mamont248 [21]

Answer:

134.397 Joules

Explanation:

Using the formula:

E = C × m × Δθ (where E is Energy, C is specific heat capacity and Δθ is change in temperature)

So E = 0.45×5.45×(79.8-25)

So E = 134.397 Joules

5 0
2 years ago
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