usr7a6c8mk usr7a6c8mk

23-09-2022
Chemistry

Answered

age 8496
Directions: The diagram shows a test tube of copper (11) sulfate solution before and after
the addition of iron shavings during an experiment. Use the diagram to answer any questions
that follow.
Blue-
Before
After
2. The experiment shows a-
Greenish-
yellow
Brownish-
red
A. chemical reaction, because the solution changed color
B. physical reaction, because the solution changed color
C. physical reaction, because it involved a compound
D. chemical reaction, because it involved a mixture

age 8496 Directions The diagram shows a test tube of copper 11 sulfate solution before and after the addition of iron shavings during an experiment Use the diag class=

Answer :

Other Questions

Table 2.3 Problem 36. A chemist recorded the data in Table 2.3 below in an experiment to determine the composition of a compound of position of three samples ma

help plis..........

A student investigated the law of conservation of mass. The law of conservation of mass states that the mass of the products is equal to the mass of the reactan

Barry knocks a baseball into the air with his bat. Shortly after the ball is hit, it is traveling at 25 m/s to the east and parallel to the ground. After two se

In this lab, you will conduct a series of reactions and then classify each reaction. Think about the information that you needed on the previous page to determi

15. Which of the following shows a physical change? A. C₂(g) +20₂(g) → 2CO₂(g) B. 2Cu(s) + O₂(g) → 2CuO(s) c. 2Pb(s) → 2Pb(1) D. K(s) + I(s) →KI(s)

Directions: The table below shows the melting point of various metals. Use the table and your knowledge of science to answer any questions that follow. 3 Metal

Another type of fuel cell used methanol instead of hydrogen. The diagram represents the reaction in this fuel cell.

b. What are the group numbers? ___________ through ___________ c. Name the three elements in this family that produce a magnetic field. ________________________

A student set up the experiment shown below to determine if radish seeds take in oxygen as they germinate. Methylene blue is a chemical that is blue when oxygen