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frez [133]
3 years ago
15

A rock's mass is a:

Chemistry
1 answer:
Alekssandra [29.7K]3 years ago
7 0

Answer:

all of the above

Explanation:

now I will bless you with this-

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Calculate the pH of a solution that has a [OH−] of 2.6 × 10^−6 M.
TiliK225 [7]

Answer:

A. 8.4

Explanation:

[OH⁻] = 2.6 × 10⁻⁶               Take the negative log of each side

-log[OH⁻] = pOH = 5.59     Apply the pH/pOH relation

pH + pOH = 14.00               Insert the value of pOH

pH + 5.59 = 14.00               Subtract 5.59 from each side

pH = 14.00 -5.59 = 8.41

7 0
3 years ago
Pls asap figure it out pls I will mark brainliest​
Maurinko [17]

Answer:

NaCl (Na is a metal and Cl is a nonmetal) MgO (Mg is a metal and O is a nonmetal) Al2O3, NaF, Na2O

Explanation:

You have to have a metal and a non metal together for it to be ionic

4 0
3 years ago
The reaction between ammonia and oxygen is given below:
anyanavicka [17]

Answer:

N2O(g) + 3 H2O(l) ---------------> 2 NH3(g) + 2 O2(g)

Explanation:

If we look at the reaction stated in the question, we will notice that the option chosen in the answer is the reverse of that reaction.

One thing is clear, if a reaction is possible, then its reverse reaction is equally possible. The equilibrium position may shift towards the forward or reverse reaction based on the conditions of the reaction.

Hence if the reaction, 2NH3(g) + 2O2(g) → N2O(g) + 3H2O(l) is possible, then the reaction, N2O(g) + 3 H2O(l) ---------------> 2 NH3(g) + 2 O2(g) is also possible.

4 0
3 years ago
Can someone please look at this?
Alex Ar [27]

Answer:

\large \boxed{\text{110 mmHg}}}

Explanation:

We can use Dalton's Law of Partial Pressures:

Each gas in a mixture of gases exerts its pressure separately from the other gases.

In other words, if a gas makes up 3.0 % of the atmosphere, its partial pressure is 3.0 % of the total pressure.

p_{\text{N}_{2}} = p_{\text{tot}} \times \dfrac{\text{3.0 parts N}_{2}}{\text{100 parts atmosphere}}= \text{3700 mmHg} \times \dfrac{\text{3.0 mmHg}}{\text{100 mmHg}} = \textbf{110 mmHg}\\\\p_{\text{N}_{2}} = \large \boxed{\textbf{110 mmHg}}

4 0
3 years ago
Explain the connection between stereotypes and self-fulfilling prophecy. Give an example of how this works.
Darya [45]

Explanation:

Self fulfilling prophecy means how our expectations or expectations of others influence our own behavior. Being self fulfilling means, to bring about a result that has been already foretold or talked about.

Whereas Stereotype is a preconceived notion about a particular type of person or thing. for examples woman as driver are not so good is an stereotype. However, the idea may untrue or partly true.

6 0
3 years ago
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