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Svetlanka [38]
3 years ago
8

Why do you have to have set amounts of compounds

Chemistry
1 answer:
Tema [17]3 years ago
4 0

Answer:

compounds, on the other hands can have their bonds broken with practical amounts of energy, such as the heat from a fire. Matter can be broken down into two.

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Which material has a greater density, lead or feathers?
algol13

Lead has a higher density


5 0
3 years ago
Which statement does NOT correctly compare zinc with another element
Nostrana [21]

Answer:

H

because Zinc is not shiny but it is a white solid

6 0
3 years ago
In boyle's law, the initial volume of a gas is 120 ml at 256 kpa. what will be the volume if the pressure increases to 385 kpa?
Vinil7 [7]
<h3>Answer:</h3>

79.8 ml

<h3>Explanation:</h3>

Boyle's law describes the relationship between pressure and volume when the temperature is constant. For this question, I will be rounding to significant figures.

Boyle's Formula

When describing the relationship between pressure and volume, the formula \displaystyle P_{1} V_{1}= P_{2} V_{2}. In this formula, P_{1}V_{1} is the initial pressure and volume. On the other side, P_{2} V_{2} is final pressure and volume. So, to find a missing variable you must plug in the values you are given.

Final Volume

Remember when solving this question to remain constant in your units. When we plug in the values we know we are given:

  • 256kPa*120mL=385kPa*V_{2} mL

Now, we can multiply the left side

  • 30720kPa*mL=385kPa*V_{2} mL

Finally, we can divide by 385 to isolate the final volume

  • 79.8mL=V_{2}

This gives the final volume of 79.8mL.

7 0
2 years ago
Write the chemical formulas and names for the following ionic compounds. Strontium and hydroxide
anygoal [31]

Answer:

Sr(OH)2

Explanation:

Strontium hydroxide, Sr(OH)2, is a caustic alkali composed of one strontium ion and two hydroxide ions. ... Sr(OH)2 exists in anhydrous, monohydrate, or octahydrate form.

8 0
2 years ago
What does the cell nucleus contain~
Aloiza [94]

Answer:

A. Chromosome

Explanation:

Chromosomes carry the genetic info, and the nucleus stores it.

Hope this helps :D

5 0
3 years ago
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