Da dove vieni? (city or nation or state)   _______________

In the following equation, which element is reduced? H2S    +    HNO3     —>     S   +    NO     +    H2O

ESSERE / AVERE. Which verb do you need to complete these paragraphs, essere or avere? Choose the correct verb and then conjugate it in the present tense. These are the present tense conjugations of ESSERE and AVERE: sono, sei, è, siamo, siete, sono ho, hai, ha, abbiamo, avete, hanno

In the prototyping phase of an Arduino-based project, why is it important to test both an input and output component together before final assembly?    

Single answer: xchgl is a x86 machine instruction that reads a 32bit value from a memory location and sets a new value to the same memory location as a single atomic instruction. The following xchg is the mutual exclusion (mutex) implemented in xv6 os kernel using a xchgl x86 instruction. For your understanding, the machine effects are described in C.   static inline int xchg(volatile int *addr, int newval) { uint result; /* atomic read followed by update in a C version */ result = *addr; *addr = new; return result;} Select one that *CORRECTLY* implements a mutual lock to enter a critical section (mutual exclusion) using the xchg above.

WRITING. Answer the following questions.  (Provide complete sentences to earn full credit!)

Maria, posso usare ________________ telefono per favore?

Dolce → __________________

Ad agosto, noi ____________ caldo e a dicembre io __________ molto freddo.

Lui suona la chitarra con i suoi amici e loro _______ molti strumenti musicali.