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Vinvika [58]
3 years ago
8

Lysosomes break down old and worn-out cell parts.

Chemistry
1 answer:
Veseljchak [2.6K]3 years ago
3 0

Explanation:

it's true that Lysosomes break down old and worn out cell parts....

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Effects of floods??​
Alex17521 [72]

Answer:

they leads to water full of village

3 0
3 years ago
Of the following reactions, which is a fission reaction?
trapecia [35]

Answer:

it's c

Explanation:

6 0
4 years ago
How many grams of NaCI are present in 11.00 moles
Amiraneli [1.4K]

Answer: 642.93 g of NaCl

Explanation:

11.00 mol NaCl  x  __58.448 g__  =  642.928 g of NaCl

                                 1 mol NaCl

I would round to 642.93 g of NaCl, but round to however many significant figures asked for.

My chemistry teacher made this map (image attached) to teach us how to do conversions. Just follow the map. I think it's pretty straight forward. I hope this helps.

7 0
3 years ago
How much heat is required to warm 50.0 g of ice from -10.0oC to 0.00oC, melt the ice, warm the water from 0.00oC to 100.0oC, boi
ludmilkaskok [199]

The total heat required to convert the ice to steam is 155,000 J.

The given parameters:

  • <em>Mass of the ice, m = 50 g</em>
  • <em>Initial temperature of the ice, t = -10 ⁰C</em>
  • <em>Final temperature of the ice, T = 0⁰C, 100⁰C and 120⁰C</em>
  • <em>Specific heat capacity of water = 4.184 J/g⁰C</em>
  • <em>Heat of fusion of ice, = 333.55 J/g</em>
  • <em>Heat of vaporization, = 2,230 J/g</em>

<em />

The heat required to raise the temperature to 0⁰C is calculated as;

Q  = mc\Delta t\\\\Q_1 = 50 \times 4.184 \times (0 - (-10))\\\\Q_1 = 2092 \ J

The  heat required to melt the ice is calculated as follows;

Q_2 = mL_f\\\\Q_2 = 50 \times 333.55 \\\\Q_2 = 16,677.5 \ J

The heat raise the temperature to 100⁰C is calculated as;

Q_3 = 50 \times 4.184 \times (100 - 0)\\\\Q_3 = 20,920 \ J

The  heat required to boil the water is calculated as follows;

Q_4 = mL_v\\\\Q_4 = 50 \times 2230\\\\4_4 = 111,500 \ J

The heat raise the temperature to 120⁰C is calculated as;

Q_5 = 50 \times 4.184 \times (120 - 100)\\\\Q_5 = 4,184 \ J

The total heat required is calculated as follows;

Q_t = Q_1 + Q_2 + Q_3 + Q_4 + Q _5 \\\\Q_t  = 2092 + 16,677.5 + 20,920 + 111,500 + 4,184\\\\Q_t = 155,373.5 \ J\\\\Q_t \approx 155,000 \ J

Learn more about heat capacity here: brainly.com/question/16559442

4 0
3 years ago
In which of the following species does sulfur have the same oxidation number as it does in H2SO4?(A) H2SO3
Dmitry_Shevchenko [17]

Answer:

E

Explanation:

To solve this question, we need to know the oxidation number in the compound in the question. The name of the compound is tetraoxosulphate(vi) acid. We can obviously see that the oxidation number of sulphur in this particular compound is 6.

A. Is wrong

The name of the compound is trioxosulphate(iv) ion

B. Is wrong

S2O32-

2S + 3(-2) = -2

S = +2

C.is wrong

Oxidation state there is -2

D is wrong

The oxidation number here is zero

E is correct

Oxidation number of oxygen is -2 and that of chlorine is -1

Hence:

S + 2(-2) + 2(-1) = 0

S -4 -2 = 0

S = 4+2 = +6

6 0
4 years ago
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