Why should you clean up after every investigation

37 moles of manganese bromide how many molecules?

Write the net ionic equation for this precipitation reaction. Include physical states. 2 LiCl (aq) + Pb (CH 3 COO) 2 (aq) ⟶ PbCl 2 (s) + 2 LiCH 3 COO (aq)

How many milliliters of 0.15 M solution could you prepare?

What defines a polar covalent bond

Nitric oxide reacts with chlorine to form nocl. the data refer to 298 k. 2no (g) + cl2 (g) → 2nocl (g) substance: no (g) cl2 (g) nocl (g) ∆h°f (kj/mol) : 90.29 0 51.71 ∆g°f (kj/mol) : 86.60 0 66.07 s° (j/k·mol) : 210.65 223.0 261.

How many of the following elements have 2 unpaired electrons in the ground state? C Te Hf Si A) 1. B) 2. C) 3. D) 4.

Which has a higher frequency, a neutron or electron? Why?

1) Identify the intensive properties of a sample of matter: A. mass B. hardness C. color D. volume E. reflectivity

Suppose you have a buffer containing 0.400 M hydrazine and 0.300 M hydrazinium chloride at equilibrium. Then you add 25.2 g of NaOH to 2.0 L of the buffer. What change in pH is caused by the addition of the base? A) 0.99 B) 0.40 C) 8.71 D) - 0.36

The heart is an example of which level of organization within an organism? O cell organ tissue organ system O O