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Alla [95]
3 years ago
13

Fill in the blank to complete each statement about measuring an earthquake's magnitude.

Chemistry
2 answers:
ahrayia [7]3 years ago
6 0

Richter & Moment

I just did it :)

Vilka [71]3 years ago
3 0

Answer: Richter & Moment

Explanation: already did it

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If 765 mL of a gas at 2.78 atm, has the volume Change to 2.47 L , What is the pressure of the
vampirchik [111]

Answer:

<h2>0.87 atm </h2>

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the new pressure

P_2 =  \frac{P_1V_1}{V_2}  \\

From the question

2.47 L = 2470 mL

We have

P_2 =  \frac{765 \times 2.78}{2470}  =  \frac{2142}{2470}  \\  = 0.867206...

We have the final answer as

<h3>0.87 atm</h3>

Hope this helps you

3 0
3 years ago
Common salt besides being used in kitchen can also be used as the raw material for making.
Anon25 [30]

Common salt besides being used in kitchen can also be used as the raw material for making washing soda and baking soda.

The overall balanced reaction for washing soda preparation:

2NaCl + CaCO3 → Na2CO3 + CaCl2

NaCl is sodium chloride or common salt

Na2CO3 is sodium carbonate or washing soda

CaCO3 is calcium carbonate or limestone

The overall balanced reaction for baking soda preparation:

NaCl + CO2 + NH3 + H2O → NaHCO3 + NH4Cl

Baking soda (NaHCO₃ - sodium bicarbonate) is white, solid, crystalline salt or appears as a fine powder.

NH3 is ammonia

CO2 is carbon (II) oxide

More about baking soda: brainly.com/question/20628766

#SPJ4

3 0
2 years ago
30 POINTS TO WHOEVER CAN FIGURE IT OUT!!When is the sun directly overhead at the equator?
Andre45 [30]

Answer:

D) Vernal and autumnal equinoxes.

3 0
4 years ago
Read 2 more answers
Please help me ASAP!!! THANKS
Elan Coil [88]

Answer:

3

Explanation:

Nonmetals are only on the right side (other than hydrogen of course).

Malleable means to be able to be hammered out of shape with no cracking and luster is shiny (metallic properties)

Most likely a transition metal

6 0
3 years ago
C3Hg + 02 → CO2 + H2O
fredd [130]

Answer:

4

Explanation:

The following equation, which depicts the combustion of propane, is given in this question as follows:

C3H8 + 02 → CO2 + H2O

However, this equation is not yet BALANCED because the number of atoms of each element is not the same on the reactant and product side. To balance the equation, we make use of COEFFICIENT to ensure that the number of atoms of each element on both side correlates.

The balanced equation is as follows:

C3H8 + 502 → 3CO2 + 4H2O

Therefore, the coefficient for water (H2O) after balancing the equation is 4.

8 0
3 years ago
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