Does mass change during chemical reaction?

Does mass change during chemical reaction? Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions. Is […]

Can probability of an event is 4 give reason?

Can probability of an event is 4 give reason? this is because here the numerator is greater than the denominator. the number of out comes of an possible event cannot be more than the total number of outcomes. Which Cannot be probability of an event? In probability, the probability of an event cannot be less […]

Why smoke has mass and occupy space?

Why smoke has mass and occupy space? Answer Expert Verified because smoke is made of soot, which is mostly fine particles of carbon mixed with air. since soot has mass (is made of matter), smoke has mass and it occupied space. Does heat and light have mass and volume? Matter has mass and occupies volume. […]

Why is atmospheric pressure greatest at sea level?

Why is atmospheric pressure greatest at sea level? Most gas molecules in the atmosphere are pulled close to Earth’s surface by gravity, so gas particles are denser near the surface. With greater depth of the atmosphere, more air is pressing down from above. Therefore, air pressure is greatest at sea level and falls with increasing […]

Does a new day start at midnight or 12 01?

Does a new day start at midnight or 12 01? It’s neither. The new day begins at the beginning of 12:00:00 AM, not the end of 12:00:00 AM. Because most clocks will pause for one second (all clocks pause for a time, depending on how accurate it is will determine for how long) before changing […]

What does the turtle symbolize?

What does the turtle symbolize? The turtle has few predators, which gives it an innocent energy. This also increases its lifespan, and so holds the symbolic meaning for longevity in many cultures. It indicates the turtle is a symbol of longevity, endurance, persistence, and the continuation of life (sometimes against incredible odds). Why is the […]

What is a friction coefficient?

What is a friction coefficient? Coefficient of friction is defined as the ratio of the force required to move tow sliding surfaces over each other, and the force holding them together [18]. What is static coefficient of friction? 13.2. The coefficient of static friction is the ratio of the maximum static friction force (F) between […]

What is the difference between a theory and a hypothesis?

What is the difference between a theory and a hypothesis? Hypothesis: What’s the Difference? A hypothesis proposes a tentative explanation or prediction. A theory, on the other hand, is a substantiated explanation for an occurrence. Theories rely on tested and verified data, and scientists widely accepted theories to be true, though not unimpeachable. What is […]

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