The answer would be C, 1,2,1,2
The one main reasons of satellites is to take pictures of outer space and the earth to observe different atmospheres.
HCl(acid)+C₄H₈ (butene)⇒ addition reaction
name of the product: 2-cloro butane
The metric system is used all around the world because it goes off a ten number base and is easy to calculate.
qualitative data is in words
quantitative data is in numbers
A mixture of calcium acetate and sodium phosphate would produce as a precipitate.
<h3>Precipitation reaction</h3>
Precipitates are insoluble salt formed from the reaction of two soluble salts.
The equation of the reaction between calcium acetate and sodium phosphate is represented by the equation below:
The produced in the reaction is an insoluble salt and, hence, a precipitate.
More on precipitation reactions can be found here: brainly.com/question/24158764