Calculate
1- Positive ions
2- Negative ions
3- Total number of H2SO4

1- there are three positive ions

2- there are four negative ions

3- check below

Explanation:

1- I say three cations because there are 2 atoms of H (H has a charge of +1) and 1 atom of S (S has a charge of +6 in this compund) (cations are positive ions)

2- There are four anions because there are 4 atoms of O (O has a charge of 2- in this compound) (anions are negative ions)

3- Sorry, can you elaborate on the last question? I don't understand it.

58 km per hour : d

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.