1. Johan started attending swimming lessons. On the first day, he

suffered from pain on his body as he had used a wrong technique to

jump into the water. Explain the reason for Johan's

injury. (Relate to water surface tension).

The prefix 'kilo-' means a thousand. 1 kilogram=1,000 grams How many kilograms is 527 grams? Round your answer to the nearest tenth of a kilogram. I get 0.54 im i correct

A gas occupies a volume of 0.6 L at 10.1 kPa. What volume will the gas occupy at 101 kPa? Assume all other properties remain constant.

Which of the following processes rearranges atoms during a reaction? O burning O cooling O crushing O evaporating

66.0g of dry ice (solid carbon dioxide)

5. Give one advantage of KIO3 as primary standard.

Which of the bonding forces from the list below would need to be overcome to convert NH3 from a liquid to a gas? (Enter the letters in order of all that apply, e. g. AB, ABD, ACDE, etc.

A precipitate of zinc hydroxide can be formed using the reaction below. ZnCl2 (aq) + 2 KOH (aq) → Zn (OH) 2 (s) + 2 KCl (aq) If excess KOH is used, the zinc hydroxide will form zincate ions and dissolve in the solution according to the chemical

Which of the following is the correct (unbalanced) equation for the reaction that takes place when solid phosphorus combines with oxygen gas to form diphosphorus pentoxide? A. P (s) + O2 (g) - -> P2O5 (s) B. P2O5 (s) - -> P2 (s) + O2 (g) C.

Nonrenewable resources are natural resources that are limited in supply and cannot be replaced as quickly as they are used up. True or false

Which method for treating arthritis is an example of pseudoscience? diet drugs exercise magnets