2 years ago

An element belonging tothe alkaline earth family would be expected to have?

Chemistry

1 answer:

prohojiy [21]2 years ago

3 0

Answer:

beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).

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Which analogy best represents a supersaturated solution? an empty elevator that has a maximum load of 20 people a single person

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25 people in an elevator that has a maximum load of 20 people

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Joy mixes one cup of sugar and one cup of lemon juice into three cups of water. The solvent in this recipe is the?

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Answer: Water is the solvent in this recipe.

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One difference between d-glucose and l-glucose is

dimulka [17.4K]

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The sample concentration was measured at 50mg/ml. The loading concentration needs to be 10mg/ml. The final volume needs to be 25

Svet_ta [14]

Answer:

a) $V_1=5ul$

b) $v=20ul$

Explanation:

From the question we are told that:

initial Concentration $C_1=50mg/ml$

Final Concentration $C_2=10mg/ml$

Final volume needs $V_2 =25ul$

Generally the equation for Volume is mathematically given by

$C_1V_1=C_2V_2$

$V_1=\frac{C_1V_1}{C_2}$

$V_1=\frac{10*25}{50}$

$V_1=5ul$

Therefore

The volume of buffer needed is

$v=V_2-V_1\\\\v=25-5$

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2 years ago

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weqwewe [10]

Answer:

- 20 J

Explanation:

Heat of Reaction = Heat of Products - Heat of Reactants

From the graph;

Heat of Products = 10

Heat of Reactants = 30

Heat of Reaction = 10 - 30 = -20 J

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