What is negative resonance? Negative Resonance Effect- Negative resonance effect occurs when the groups withdraw the electrons from other molecules by the process of delocalization. The groups are usually denoted by -R or -M. In this process, the molecular electron density is said to decrease. For example- -NO2, C=O, -COOH, -C≡N. What is difference between […]
Can alkanes form hydrogen bonds?
Why is evaporation important how can it help you?
Why is evaporation important how can it help you? The molecules move and vibrate so quickly that they escape into the atmosphere as molecules of water vapor. Evaporation is a very important part of the water cycle. Heat from the sun, or solar energy, powers the evaporation process. Once water evaporates, it also helps form […]
How much is a printed circuit board?
How much is a printed circuit board? Printed circuit boards have a huge range of quality, reliability, complexity, and price points. A circuit board typically costs from 50 cents to $300 dollars to produce, depending on your needs. What is the other name of printed circuit board? PCBs use conductive pathways, tracks or signal traces […]
What is used to transport hot crucibles and to remove their covers?
What is used to transport hot crucibles and to remove their covers? Laboratory Equipment A B used to grind chemicals into powder mortar and pestle used to hold objects on a ring stand utility clamp used to transport hot crucibles and to remove their covers crucible tong to hold, mix, and heat chemicals – easier […]
What does it mean if a girl says Nevermind?
What is the number of protons in copper?
What is the number of protons in copper? 29 What is the Unabbreviated electron configuration of copper? [Ar] 3d¹⁰ 4s¹ What is the ground state of copper? Copper has the ground-state electronic configuration [Ar]4s1 3d10. It has two commonly observed ions, Cu+ and Cu2+. Cu+ has the ground-state electronic configuration [Ar]3d10. What is the Unabbreviated […]
Is 19 km/h wind strong?
Could we survive on earth without the greenhouse effect quizlet?
Could we survive on earth without the greenhouse effect quizlet? What is the greenhouse effect? No we would not be able to survive because without these gases, the Earth would be too cold for humans, plants and other creatures to live. The two largest greenhouse gases are Co2 and methane which comes from fossil fuels […]
How can you speed up an exothermic reaction?
How can you speed up an exothermic reaction? Decrease the temperature in Exothermic reactions (Reactions that release energy, or become hot) Add a catalyst (A substance that reduces activation energy, speeding up the reaction) Increase the concentration of reactants. Increase the concentration of catalysts. Why is a match exothermic? – when Energy is released along […]