Answer:
A. Bubbles formed
Explanation:
When a student added a piece of limestone to a solution of hydrochloric acid, bubbles are formed.
The bubbles are as a result of the CO2 gas that is formed.
Below is the reaction:
CaCO3+2HCl → CO2+H2O + Ca++ + 2Cl-
From the left hand side, we can see that the reaction is with limestone and hydrochloric acid. Their reaction forms carbon dioxide gas (CO2), water (H2O), dissolved calcium (Ca++) and dissolved chlorine (Cl-) on the right hand side.
With due observation, bubbles will be seen evolving from the reaction. These bubbles formed is the carbon dioxide gas which reveals that a reaction is taking place.
Answer:
Stubborn and overconfident
Explanation:
he doesnt want help and dies bc hes stupid
Answer:
For background reading, the most helpful option would be to research Option A: reading the various theories for why doughnuts are called "doughnuts."
Explanation:
The history of the doughnut is contested because many cultures have a food that involves a practice of frying some version of sweetened dough as a dessert or a snack. For example, in Spain (and many Latin American countries) there is the churro, and the tradition of making sufganiyot goes back centuries in the Mizrahi Jewish culture. With the focus on doughnuts from the start you would gain some valuable background information to start researching your paper. Many doughnut aficionados believe the American doughnut was adapted from Dutch immigrants in New York who made their traditional oliebollen.
Answer:
Academics & Organization
Break learning tasks into small steps.
Probe regularly to check understanding.
Provide regular quality feedback.
Present information visually and verbally.
Use diagrams, graphics and pictures to support instruction.
Provide independent practice.
Model what you want students to do.
<h2>
Please mark me as brainliest</h2>
