2 years ago

Đơn chất nào sau đây tác dụng với dung dịch axit sunfuric loãng sinh ra khí ?

1 answer:

viva [34]2 years ago

6 0

Answer:

C. Al

Explanation:

2Al+ 3H2SO4(l)------> Al2(SO4)3+ 3H2

You might be interested in

a_sh-v [17]

Answer:

synthesis

Explanation:

I believe answer is d a synthesis reaction

5 0

3 years ago

Margarita [4]

The woods so far the texture is going to be A with the Henry

3 0

2 years ago

gtnhenbr [62]

The PH of water is 7 because it contains an equal amount of h and oh- ions.

6 0

3 years ago

Stolb23 [73]

Answer:

There are 17.64% students received B+ grades.

Explanation:

It is given that,

Total number of students in chemistry class is 17

We need to find the percentage received by B+.

Number of students having B+ grades are 3 (from graph)

Required percentage = $P=\dfrac{3}{17}\times 100=17.64\%$

So, there are 17.64% students received B+ grades.

8 0

3 years ago

inn [45]

Answer:

Optically Transparent

7 0

3 years ago