Em um laboratório de química realizou-se uma titulação de 50 mL de uma solução de soda caustica NaOH de concentração 6 mol/L, foi utilizada uma solução de ácido sulfúrico de concentração 2,5 mol/L, de acordo com a equação química a seguir.

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.