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givi [52]
3 years ago
10

A substance that has high reactivity

Chemistry
1 answer:
Dovator [93]3 years ago
6 0

Answer:

Explanation: A, easily combines chemically with other substances.

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Seawater is typically 3.5% salt and has a density of 1.03 g/mL. How many grams of salt would be needed to prepare enough seawate
Bas_tet [7]

Answer:

Amount of salt needed is around 2.3*10³ g

Explanation:

The salt content in sea water = 3.5 %

This implies that there is 3.5 g salt in 100 g sea water

Density of seawater = 1.03 g/ml

Volume of seawater = volume of tank = 62.5 L = 62500 ml

Therefore, the amount of seawater required is:

=Density*Volume = 1.03g/ml*62500ml = 6.44*10^{4} g

The amount of salt needed for the calculated amount of seawater is:

=\frac{6.44*10^{4}g\ water*3.5g\ salt }{100g\ water} =2254 g =2.3*10^{3} g

8 0
3 years ago
Fluorine gas reacts violently with water to produce HF and ozone
serious [3.7K]

Answer:

c8.3 moles

Explanation:

5 0
3 years ago
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How would a solution that is labeled 5.0 M would be read as?
Ivanshal [37]
5 moles because molarity signifies number of moles dissolved in One litre of water
8 0
3 years ago
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Which of the following is an alkaline earth metal?
svetlana [45]
Magnesium is the answerr
4 0
2 years ago
A balanced chemical reaction obeys the law of...
Anit [1.1K]

Answer: (C) conservation of matter

Solution: Law of conservation of matter or mass states that' total mass of the reactants should always be equal to the total mass of the product that is the total mass is remained conserved in a chemical reaction.

A balanced chemical equation always follow this law.

For example:

2H_2(g)+O_2(g)\rightarrow 2H_2O(l)

Mass of hydrogen = 1 g/mol

Mass of Oxygen = 16 g/mol

Total mass on the reactants = 2(2×1)+(2×16)= 36g/mol

Total mass on the product side = 2[(2×1) +16] = 36 g/mol

As,

Mass on reactant side = Mass on the product side

Therefore, a balanced chemical reaction follows Law of Conservation of mass.

4 0
3 years ago
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