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Anton [14]
3 years ago
7

Pls that is the picture ​

Chemistry
1 answer:
Fiesta28 [93]3 years ago
3 0
Do what it says easy
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Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation.
Troyanec [42]

Answer: Ca(OH)_2+2HCl\rightarrow CaCl_2+2H_2O

Explanation:

Neutralization is a chemical reaction where an acid reacts with a base to form salt and water.

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side.

The balanced chemical equation will be:

Ca(OH)_2+2HCl\rightarrow CaCl_2+2H_2O

Thus the reactants are calcium hydroxide (Ca(OH)_2 and hydrochloric acid (HCl)

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Explanation:

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2 years ago
Three different samples were weighed using a different type of balance for each sample. The three were found to have masses of 0
Lena [83]

Answer:

6.096799125kg

Explanation:

According to the question, three different samples weighed using different types of balance had masses: 0.6160959 kg, 3.225 mg, and 5480.7 g.

Based on observation, the mass units in the three measurements are different but must be uniform in order to find the total mass. Hence, we need to convert to the standard unit (S.I unit of mass), which is kilograms (kg)

Since 1kg equals 1,000,000mg

Hence, 3.225mg will be 3.225/1000000

= 0.000003225kg

Also, 1kg equals 1000g

Hence, 5480.7g will be 5480.7/1000

= 5.4087kg

Hence, the total mass of the three samples (now in the same unit) are:

5.4807kg + 0.000003225kg + 0.6160959 kg

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A device that does work with only one movement is a simple machine <br> true or false
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true

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