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zhuklara [117]
2 years ago
13

You've just returned to school from spring break and all of the plants in your classroom are wilted and looking bad. What do you

think happened? Use your knowledge of plant cells to explain. Can they recover?
Chemistry
1 answer:
SpyIntel [72]2 years ago
6 0
Mzkslskkskskskksosososoowkmwnwnsnsnnsnsnsnsns
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Scientists gather information to understand why and where earthquakes happen. What is the name of the machine that helps them me
creativ13 [48]
There are two scales, one is a Ritcher scale and another one is called a Mercalli scale.
6 0
3 years ago
What anions generally form precipitates? What are the exceptions?
8_murik_8 [283]

Answer:

Carbonates (CO3-2), phosphates (PO4-3) and sulfides (S-2) are insoluble.

The exceptions are the alkali metals and the ammonium ion.

6 0
3 years ago
Read 2 more answers
What is the effect of the following on the volume of 1 mol of an ideal gas? The temperature changes from 305 K to 32°C and the p
ryzh [129]

Answer:

The volume increases by 100%.

Explanation:

<u>Step 1:</u> Data given

Number of moles ideal gas = 1 mol

Initial temperature = 305 K

Final temperature = 32°C + 273.15 = 305.15 K

Initial pressure = 2 atm

final pressure = 101 kPa = 0.996792 atm

R = gasconstant = doesn't change

V1 = initial volume

V2= the final volume

<u>Step 2: </u>Calculate volume of original gas

P*V = n*R*T

(P*V)/ T = constante

(P1 * V1) / T1 = (P2 * V2)/ T2

In this situation we have:

(2atm * V1)/ 305  = (0.996792 *V2) / 305.15

0.006557*V1 = 0.003266*V2

V2 = 2*V1

We see that the final volume is twice the initial volume. So the volume gets doubled. The volume increases by 100%.

7 0
3 years ago
What forces are present in this situation?
Andre45 [30]

Answer:

gravity and tension i believe is the answer HOPE THIS HELPED

Explanation:

4 0
3 years ago
Read 2 more answers
john has an object suspended in the air. It has a mass of 50 kilograms and is 50 meters above the ground. Calculate the objects
egoroff_w [7]
Answer is: <span>the objects potential energy is 24500 J.
</span>m(object) = 50 kg.
h(object) = 50 m.
g = 9,8 m/s².
E(object) = m·g·h.
E(object) = 50 kg · 9,8 m/s² · 50 m.
E(object) = 24500 N·m = 24500 J = 24,5 kJ.
g - <span>the acceleration of free fall.
mg - </span><span>weight of the object.</span>
4 0
3 years ago
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