Is melting cheese a chemial or physial change

A litter of pigs is born. Three are female, and three are male. Which set of symbols correctly describes the gender of each piglet? XX, XY, XX, XY, XY, XX XXY, XXY, XXY, XX, XX, XX

What is the pH of an aqueous solution with [H3O+] = 6*10-12 M?

12. In line 13, what is the purpose for the ellipsis? a. to indicate omitted text b. to indicate a slight pause C. to indicate a mood change d. to indicate an unstated thought

Is MgO + CO2 - > MgO3 endothermic or exothermic?

A confused student was doing an isomer problem and listed the following six names as different structural isomers of C7H16. a. 1-sec-butylpropane b. 4-methylhexane c. 2-ethylpentane d. 1-ethyl-1-methylbutane e. 3-methylhexane f.

Consider these statements regarding the body's inability to convert fat to carbohydrates. Select each statement that is true. 1. Acetoacetate is a normal, major energy source for the brain, heart muscle, and renal cortex. 2.

Which is the best term to use describing the energy of position

Regalo puntos : v vengan a mi prros

Write a net ionic equation for the overall reaction that occurs when aqueous solutions of phosphoric acid (h3po4) and potassium hydroxide are combined. assume excess base. use the pull-down boxes to specify states such as (aq) or (s).

What are the coefficients that will balance the skeleton equation below? n + h ⟶ nh?