What is the oxidation number of the oxygen atom in H2O2? Is hydrogen reactive? What is the number of electrons in the outermost energy level of an oxygen atom? What is the dominant species of cobalt? What eleme
Which of the following elements form diatomic molecules? a) Bromine b) Neon c) Carbon d) Helium Which elements in the periodic table constitute the alkali metals? Which element is most likely to react with oxygen? a. aluminum b. argon c. magnesium d. nitrogen e. silicon Which group of ...
In fuel cells, hydrogen reacts with oxygen to produce energy just like a conventional battery, without any harmful emissions.A major application in the modern era involves using hydrogen fuel cell power plants, particularly for producing electricity. By the end of March 2024, the United States ...
What happens when methane reacts with oxygen? View Solution What will happen when sodium reacts with cold water? View Solution What happens when silver nitrate reacts with sodium chromate? View Solution When water is dropped over sodium peroxide, the colourless gas produced is ...
A fuel is a chemical that can be ‘burnt’ to provide useful energy. Burning normally means that chemical bonds between the elements in the fuel are broken and the elements chemically combine with oxygen (often from the air). For many years, we’ve used natural gas to heat our homes and...
ICSE-THE s - BLOCK ELEMENTS-NCERT TEXT-BOOK. EXERCISES (WITH HINTS AND SOLUTIONS) What happens when magnesium is burnt in air ? 02:51 What happens when quick lime is heated with silica ? 01:33 What happens when chlorine reacts with slaked lime? 01:26 Calcium nitrate decomposes on heating...
Cerebral palsydescribes the condition where a developing infant's brain is deprived of oxygen and fails to develop normally. This may occur in the uterus before birth or may be due to an injury or illness that happens within the first couple of years of life. Often, it is an infection or...
Fu et al. (2022) further pointed out that adaptive introgression did not affect the genes themselves but instead the cisregulatory elements regulating their expression, leading to similar expression profiles of closely related species in the same environment; and that although recombination facilitates ...
and bond with other atoms to restore balance. The noble gases are outliers because their atoms already have the maximum number of electrons, and therefore they don't exchange with other elements. At least, not on Earth they don't, but scientists are discovering that noble gases behave differen...
A chemical reaction has two elements as reactants. Which type of reaction might occur? How many moles of CO2 are produced when 5.70 mol of ethane are burned in an excess of oxygen? How many grams of CO2 should be produced when 1.00x10^9 (one billion) molecules of O2 are reacted ...