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givi [52]
3 years ago
5

A solution is a mixture _____.

Chemistry
2 answers:
VARVARA [1.3K]3 years ago
8 0

Answer:

homogeneous

Explanation:

AnnZ [28]3 years ago
8 0
O need que respond this so puedo post una question
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A piece of copper with a mass of 218 g has a heat capacity of 83.9 j/°c. what is the specific heat of copper?
kari74 [83]
The answer to this question would be: 0.385  j/g°c

Specific heat is the amount of energy needed to increase 1 degree of celcius per one gram of a specific mass. In this question, it needs 83.9 j/°c energy to increase the temperature of 218 g copper. Then, the specific heat would be:  (83.9 j/°c) / 218g= 0.38486  j/g°c
4 0
3 years ago
Is there a way of knowing the charges of transitional elements other than to memorize them?
romanna [79]

Explanation:

To determine the charge on a given transition metal atom, you have to consider what element it is, the charges on the other atoms in the molecule, and the net charge on the molecule itself. The charges are always whole numbers, and the sum of all the atomic charges equals the charge on the molecule

3 0
2 years ago
Help me please!!!!!!!!
ale4655 [162]

Answer:

that's a hard one

Explanation:

6 0
3 years ago
Read 2 more answers
Determine the oxidation state of the metal ion in [co(nh3)5br]2+. express your answer as an integer.
Zanzabum
                                           [Co(NH₃)₅Br]²⁺

Ligands and charges on them,

                             5 × NH₃  =  5 × 0  =  0

                             1 × Br⁻¹  =  1 × -1  =  -1

Charge on sphere  =  +2

So, putting values in equation,

                                       Co + (0)₅ - 1  =  +2

                                       Co + 0 - 1  =  +2

                                       Co - 1  =  +2

                                       Co  =  +2 + 1

                                       Co  =  +3

Result:
           Oxidation state of Co in [Co(NH₃)₅Br]²⁺ is +3.
7 0
3 years ago
What is the one variable that is changed in the experimental group called? the placebo the independent variable the control grou
BlackZzzverrR [31]

Answer:

the independant variable

Explanation:

4 0
3 years ago
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