Antonym for temperature

Chemistry

1 answer:

Nata [24]3 years ago

6 0

The answer will be coolness

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How does the corona of the Sun affect earth

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Answer:

I don't think it does affect Earth

Explanation:

The sun is too far away to get corona let alone spread it.

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3 years ago

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In an investigation, explain the best way to use variables in an experiment

vazorg [7]

Answer:

An experiment is an investigation in which a hypothesis is scientifically tested. In an experiment, an independent variable (the cause) is manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled. An advantage is that experiments should be objective.

Explanation:

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2 years ago

In the word equation, sodium oxide water sodium hydroxide, the formula for sodium hydroxide is represented by

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Answer:
Formula for sodium hydroxide is represented by NaOH.

Explanation:
The reaction of Sodium oxide with water is as follow,

Na₂O + H₂O → 2 NaOH

Na₂O is considered as a strong basic oxide as it contains O²⁻ which has high tendency to bind with hydrogen atoms. This reaction is an exothermic reaction and is conducted in cold water to produce NaOH.

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3 years ago

A solution is made by dissolving 4.87 g of potassium nitrate in water to a final volume of 86.4 mL solution. What is the weight/

lara31 [8.8K]

Answer:

A solution is made by dissolving 4.87 g of potassium nitrate in water to a final volume of 86.4 mL solution. The weight/weight % or percent by mass of the solute is :

2.67%

Explanation:

Note : Look at the density of potassium nitrate in water if given in the question.

You are calculating weight /Volume not weight/weight % or percent by mass of the solute

Here the weight/weight % or percent by mass of the solute is asked : So first convert the VOLUME OF SOLUTION into MASS

Density of potassium nitrate in water KNO3 = 2.11 g/mL

$density=\frac{mass}{volume}$