Which of the following is a pure substance?

brass

sodium

rocks

steel

Given the balanced neutralization equation from part B, how many moles of potassium hydroxide (KOH) are required to neutralize 4.5 mol of sulfuric acid (H2SO4) ? Assume that the sulfuric acid completely dissociates in water.

Why do elements in the same group have similar properties

What kind of mixture is homogenized milk

What is the total distance covered if you walk 5 meters to the north 5 meter east 5 meters south

State the number one way of increasing the solubility of a substance and explain why it has that effect. Also, explain two ways that you can increase the rate of dissolving for substance.

How quickly or slowly a substance heats or cools is measured by its

What is the total number of valence electrons in a germanium atom in the ground state? (1) 22 (3) 32 (2) 2 (4) 4

If a patient/'s blood pressure is 145 over 85 mmHg, what is it in atmospheres (atm) ?

Which of the following is nicknamed the "powerhouse" of the cell?

Which is a sign of a chemical change? Question 6 options: Paint on a freshly painted wall dries and is no longer sticky. Ice cream melts when left at room temperature. Vinegar is mixed with baking soda resulting in carbon dioxide bubbles.