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Which is a pure substance? A: soda B: gasoline C: salt water D: carbon dioxide

In the equation, 2Al (s) + 3Cl2 (g) → 2AlCl3 (s), the large number "3" in front of the Cl2 indicates: the number of chlorine atoms needed to balance the equation the number of chloride molecules needed to balance the equation the number of moles of

Asteroids ate rocky objects that revolve around the earth is it true?

A gaseous reaction occurs and comes to equilibrium: 2HI (g) + Cl2 (g) - --> 2HCl (g) + I2 (g) + energy Which of the following changes to the system will serve to increase the nuber of moles of I2 present at equilibrium? A.

Where did the asteroids in the asteroid belt come from? restrial 90% They are the result of a planet's explosion. anets and They are the remains of comets that got too close to the sun.

What type of chemical process is used to create perfume?

Which of the following is a polyatomic ion? O A. HCI O B. Na O C. PO, O D. 52

What are the cations and anions for V2 (CO3) 3

If you were asked to convert 4.2 x 1022 atoms of aluminum to moles, which of the following should you use for the conversion?

Carbonic acid (H2CO3) does not dissortate 100 percent in water. What type of substance is it? weak acid Strong base strong acid weak base