Which of these is a covalent compound?

1. AICI3

2. CO

3. MgO

4. LiCI

Which answer accurately describes the difference between speed and velocity? Read each answer choice carefully. Question 4 options: A. If speed is constant, then velocity is also constant. B. Speed requires direction.

What is the range of 14 and 25

A chemical reaction produces 11.8 moles of tin atoms how many grams of tin are made

An irregularly shaped solid which has a mass of 10.283g was placed in a graduated cylinder containing an inert liquid. The initial volume of liquid was read as 6.26mL.

If two atoms are bonded with a bond energy of 87 kJ, what must be done to break the bond? A. 87 kJ of energy must be added B. The energy must be decreased by 87 kJ. C. The bond order has to be higher. D. No energy should come out or go in.

16. Why can grinding a solid into a fine powder increase the rate of reaction?

What is one difference between a mixture and a compound?

The Ksp of cobalt (II) hydroxide, Co (OH) 2, is 5.92 * 10-15. Calculate the molar solubility of this compound.

A gas is collected in a 34.3L container at a temperature of 31.5°C. Later, the container has a volume of 29.2L, a temperature of 21.0°C and a pressure of 122.2kPa. What was the original pressure on the container?

What does it mean for a cell to be specialized?