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# Stack #170056

Question | Answer |
---|---|

How many significant figures does the answer to (1.3 x 10^-5) x (5.02 x 10^-2) have? | 2 |

Write 0.006730 in scientific notation | 6.730 x 10^-3 |

Write 50,000.0 in scientific notation | 5.00000 x 10^4 |

How many significant figures does the measurement 0.4004 ml have? | 4 |

Subtract 7.11 cm from 8.2 cm. | 1.1 cm |

What is the difference between a physical and chemical change? | With a physical change the same substance is still there it has just changed appearance. With a chemical change a totally new substance is formed. |

What is the difference between heat and temperature? | Heat is the flow of energy from one substance to another, while temperature is the measure of the average kinetic energy of an object. |

What is the rule for rounding to the correct number of significant figures for the functions of addition and subtraction? | Limit and round the answer to the least number of decimal places in any of the intial numbers. |

What is the rule for rounding to the correct number of significant figures for the functions of multiplication and division? | Limit and round the answer to the least number of significant figures in any of the initial numbers. |

How many significant figures are in the number 400 ? | 1 |

What is the product of 0.8102 m and 3.44 m? | 2.79 m^2 |

Created by:
kkrygier