Chemistry, 08.04.2021 14:40 uberagentkenny
5. When do organs and organ systems begin to develop in humans?
A. In the sperm cell before fertilisation.
B. Before fertilisation and after birth.
C. In the egg cell after fertilisation.
D. After fertilisation and before birth.
6. All are the effects of alcohol EXCEPT
A. bleeding gums.
B. brain and liver damage.
C. loss of speech and memory.
D. obesity.
7. Use of vehicles, rise in industries, and burning fossil fuel contribute to
A. soil pollution
B. noise pollution
C. water pollution
D. air pollution.
8. While drinking tea, the least likely sense organ used is
A. eye.
B. nose.
C. tongue.
D. ear.
Answers: 2
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Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88
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8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
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Chromium(iii) sulfate is a transition metal compound containing the metal chromium and the polyatomic ion sulfate. the oxidation state of chromium in this compound is , and the chemical formula of the compound is ( ) . reset next
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5. When do organs and organ systems begin to develop in humans?
A. In the sperm cell before fertili...
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