A proposed mechanism for the reaction : h2+2IBr = I2 2HBr is shown above. Two experiments were performed at the same temperature but with different initial concentrations. Based on this intormation which the following statements is correct
The rate of the reaction will undergo a to increase in the experimentinental concentrations of om HI and I were souble
3 Themate of the reaction will undergo a tale increase in the experiment in which the initial concentrations of bon and I were double
The rate of the reaction will undergo a 4 increase in the experiment in which the initial concentrations of dem Hand I were studied
The rate of the reaction will undergo a 3o increase in the experiment in which the al concentrations of bom H, and Br were doubled

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

the answer is c i took the test