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lawyer [7]
3 years ago
12

Please help me it's due tmrw ​

Chemistry
1 answer:
Advocard [28]3 years ago
4 0

Answer:

A: The first one because it is going upward and that means getting warmer.

B: The second one is the cooling curve because it is going downward and that means cooler.

Explanation:

I hope this helps.

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What kinds of things could a magnet make another object or magnet do without touching it?​
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Answer:

Magnets can be used to make other magnets and things made of iron move without being touched. Something that has been electrically charged can make other things move without touching them.

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The reaction of a quantity of sulfur trioxide with water gives an acid with a volume of 2 l, containing 1.8 mol of the dissolved
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A.)Calculate the mass of ammonium sulfate that would be obtained by reacting with ammonia acid.

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A
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Answer:

D. Using a battery

3 0
3 years ago
I need the answer please
Morgarella [4.7K]
I personally thinks it’s A
8 0
3 years ago
Fill in the missing information:
Neko [114]

Answer: 1. Complete Nuclear Symbol : _{22}^{48}{Ti^{4+}}

2. Atomic number : 22

3. Mass number : 48  

4. Charge : 4 +

Explanation:

Atomic number is equal to the number of protons.

Mass number is the sum of number of neelectrons. utrons and number of protons.

Given : no of protons = 22 , thus atomic number = 22

Mass number =  number of neutrons + number of protons

Mass number =  26 + 22 = 48

Also for a neutral atom , the number of protons is equal to the number of electrons. But here electrons are 4 less than protons, which means the atom has lost 4 electrons and thus will have a charge of 4+.

The atomic number is specific to an element, and the element with atomic number 22 is Titanium (Ti). The representation is _{22}^{48}{Ti^{4+}}

3 0
3 years ago
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