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DaniilM [7]
2 years ago
10

Anyone know how to do this? It’s for Chemisty

Chemistry
1 answer:
Gennadij [26K]2 years ago
7 0
You have to take the top quantity and divide it by the crossponent
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What is the Scientific notation for 8,950,000​
Tatiana [17]
The scientific notation for 8,950,000 is
8.95 × 10^6
6 0
3 years ago
3. A student measured 15.0 grams of ice in a beaker. The beaker was then
gregori [183]

Answer:

The heat that was used to melt the 15.0 grams of ice at 0°C is 4,950 Joules

Explanation:

The mass of ice in the beaker = 15.0 grams

The initial temperature of the ice = 0°C

The final temperature of the ice = 0°C

The latent heat of fusion of ice = 330 J/g

The heat required to melt a given mass of ice = The mass of the ice to be melted × The latent heat of fusion of ice

Therefore, the heat, Q, required to melt 15.0 g of ice = 15.0 g × 330 J/g = 4,950 J

The heat that was used to melt the 15.0 grams of ice = 4,950 Joules.

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2 years ago
An atom was observed with +3 charge, n = 38, and e = 28. What is the mass number of the atom?
Finger [1]

Answer: 66

Explanation: To find the mass number you would have to add the number of protons and the number of neutrons.

3 0
1 year ago
If the mercury in a manometer raises 30.0 millimeters due to a change in pressure, what is the corresponding change in pressure
Nostrana [21]

Answer:

0.03947 atm

Explanation:

The relationship between mmHg and atm is given as;

1 atm = 760 mmHg

x atm = 30 mmHg

Upon solving for x;

x * 760 = 30 * 1

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2 years ago
What is the chemical formula of (Sodium hydroxide ) ??​
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\huge{ \color{black}{ \boxed{ \color{hotpink}{Answer}}}}

what is the chemical formula of (Sodium hydroxide ) ??

<h3> ⚘ NaOH</h3>
  • Sodium hydroxide, Sodium oxidanide

\:

\large\tt\:⚘ \: MishiChaeYoon \: ⚘

4 0
2 years ago
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