Answer : Salt and Sand are weighed and kept in different 50 Milliliter beakers because, the experiment is about studying and separating the homogeneous mixture. As salt crystals are cubic and sand grains are rounded oblong grains. If we mix it together it would require a physical method to separate them. So, before starting the experiment it needs to be weighed in different beakers.
Answer:
230,294.9 I think it's fine just try your past or ask teacher help
Because this acid dissolves the enamel on the tooth creating holes or cavities
The sulphate ion has a charge of 2-, and potassium has a charge of 1+. To fully neutralise the charge on a sulphate ion, you need two potassium ions.
However, strontium has a charge of 2+. To neutralise the sulphate ion's 2- charge, one strontium ion is enough, so only one bonds to the sulphate.
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<span>thats weird im doin the same lab right now well idk this is wat i wrote
The way electron light is emitted from metal salts is when an element is heated, the electrons will be excited. Then as these electrons fall back from one energy level to another, they will emit photons of light. Those photons will have different colors depending on the elements and its discrete energy levels. The way a spectrographic experiment can help identify a particular metal ion is because this device separates light into different wavelengths and gives you their measurements. With this it is easier to classify to line emission spectra.</span>
