All categories

3 years ago

Along with subduction, what other process changes sedimentary rocks to metamorphic rocks?

Chemistry

1 answer:

muminat3 years ago

7 0

It would be weathering because of all the heat and pressure.

You might be interested in

Saturns day is roughly 10 hours. it takes about 30 years for Saturn to return to the same point in space. How do saturns periods

leva [86]

I think its c but not sure

8 0

4 years ago

Aqueous sulfuric acid H2SO4 will react with solid sodium hydroxide NaOH to produce aqueous sodium sulfate Na2SO4 and liquid wate

allochka39001 [22]

Answer:

a) 2NaOH+H2SO4→Na2SO4+2H2O2NaOH+H2SO4→Na2SO4+2H2O

b) Số phân tử NaOH : Số phân tử H2SO4 = 2:1

Số phân tử NaOH : Số phân tử Na2SO4 = 2:1

Số phân tử NaOH : Số phân tử H2O = 2:2

Explanation:

8 0

2 years ago

An isotope of an element has the following symbol: 131 I How many electrons does it

WINSTONCH [101]

Answer:

Explanation:

sorry bout ealier

5 0

3 years ago

I have no idea how to do this, any help would be appreciated

aksik [14]

Proton number = the atomic number (which is the smaller number
neutron number = the mass number (the bigger number) - the atomic number
number of electrons = the atomic number - the charge (it depends on the element but group 1 is +1 group 2 is +2 group 3 is +3 group five is -3 group six is -2 group seven is -1

i would solve the whole thing but its unclear hope this helps tho

6 0

3 years ago

Write the beta decay equation for the following isotope: 91 38 Sr? Please write out steps

babymother [125]

Answer:

$\rm _{38}^{91}Sr \longrightarrow \, _{-1}^{0}e + \, _{39}^{91}Y$

Explanation:

The unbalanced nuclear equation is

$\rm _{38}^{91}Sr \longrightarrow \, _{-1}^{0}e \, + \, ?$

Let's write the question mark as a nuclear symbol.

$\rm _{38}^{91}Se} \longrightarrow \, _{-1}^{0}e \, + \, _{Z}^{A}X$

The main point to remember in balancing nuclear equations is that the sums of the superscripts and the subscripts must be the same on each side of the equation.

Then

98 = 0 + A, so A = 98 - 0 = 98, and

38 = -1 + Z, so Z = 38 + 1 = 39

Then, your nuclear equation becomes

$\rm _{38}^{91}Sr \longrightarrow \, _{-1}^{0}e + \, _{39}^{91}X$

Element 39 is yttrium, so the balanced nuclear equation is

$\rm _{38}^{91}Sr \longrightarrow \, _{-1}^{0}e + \, _{39}^{91}Y$

7 0

3 years ago