Only serious answers! i appreciate ! 1.the volume of 3.50m hcl needed to make 275ml of 2.90m hcl is a. 153ml b. 228ml c. 255ml d. 332ml 2. what mass of na2so4 is needed to make 1.8 l of 3.0 m solution? (na = 23 g; s = 32 g; o = 16 g a. 142g b. 334g c. 767g d. 1,534g 3. if the percent (mass/mass) for a solute is 6% and the mass of the solution is 300 g, what is the mass of solute in solution? a. 18g b. 36g c. 72g d. 180g 4. what is the molality of a solution containing 9.5 grams of solute in .75 kg of solvent? ( molar mass of solute is 33.2 g/mole) a. 12.7m b. 5.75m c. 0.382m d. 0.0789m 5. what is the freezing point of a solution of 0.650 mol sucrose in 750.0ml of water ? (kf of water = 1.86 deg c/m) a. 1.61 deg c b. 0.00 deg c c. -1.61 deg c d. it would not freeze

Rutherford's experiment indicated that matter was not as uniform as it appears what part of his experimental results implied this idea

For a family dinner, jose’s mom baked a loaf of bread. during the meal, his grandmother commented, “this bread is so dense! ” what do you think his grandmother meant by the word dense? you have some ideas regarding density already, but this experiment will enrich your understanding of the relationship between mass, volume and the density of objects. when making measurements in this experiment we will be using si units, the international system of units. the purpose of using si units is to have the ability to communicate and compare data results with other experiments without having to make conversions. measurement symbol si unit length m meter mass kg kilogram volume l liters density kg/l kilograms per liter any calculations that are performed during this experiment will ultimately be reported in scientific notation. recall that scientific notation is extremely important when we have data that is extremely small or large. scientists rely on a standard form of communication to quickly make hypotheses and judgements based on data. what is the density of block a? a0kg/l what is the density of block b? a1kg/l what is the density of block c? a2kg/l what is the density of block d? a3kg/l what is the density of block e? a4kg/l which block is the densest? a5

What is the consequence on your brain for snorting or taking amphetamines(meth/stimulant) as a 16 year old(minor)?